DevExpress13.2.9 控件使用经验总结

一.换肤功能

  1. 添加 DevExpress.OfficeSkins 和 DevExpress.BonusSkins 两个引用

  2. 皮肤注册

DevExpress.UserSkins.BonusSkins.Register();
DevExpress.Skins.SkinManager.EnableFormSkins();
View Code

  3. 加载皮肤列表,调用 SkinTools.LoadSkinList 函数

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using psi.Common;
using psi.Interfaces;
using DevExpress.Skins;
using DevExpress.LookAndFeel;

/************************************************************************* 
 * 程序说明: 设置皮肤工具
 **************************************************************************/
namespace psi.Library
{
    /// <summary>
    /// 设置皮肤工具
    /// </summary>
    public class SkinTools
    {
        private static ToolStripMenuItem _CurrentSkinList = null;

        /// <summary>
        /// 加载皮肤列表
        /// </summary>
        public static void LoadSkinList(ToolStripMenuItem owner)
        {
            _CurrentSkinList = owner;

            int skinCount = DevExpress.Skins.SkinManager.Default.Skins.Count;
            ToolStripItem[] itemArr = new ToolStripItem[skinCount];
            int index = 0;
            foreach (DevExpress.Skins.SkinContainer skin in DevExpress.Skins.SkinManager.Default.Skins)
            {
                ToolStripMenuItem item = new ToolStripMenuItem();
                item.Text = skin.SkinName;
                item.Name = skin.SkinName;
                item.Checked = skin.SkinName == SystemConfig.CurrentConfig.SkinName;
                item.Click += new System.EventHandler(OnSetSkinClick);
                itemArr[index] = item;
                ++index;
            }

            owner.DropDownItems.AddRange(itemArr);
        }

        /// <summary>
        /// 设置皮肤
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void OnSetSkinClick(object sender, EventArgs e)
        {
            ToolStripMenuItem clickItem = sender as ToolStripMenuItem;
            SetSkin(clickItem.Name);

            if (_CurrentSkinList != null)
            {
                foreach (ToolStripMenuItem item in _CurrentSkinList.DropDownItems)
                {
                    item.Checked = false;
                }
            }

            clickItem.Checked = true;
        }

        public static void SetSkin(string skinName)
        {
            //设置所有窗体的皮肤
            for (int i = 0; i < Application.OpenForms.Count - 1; i++)
            {
                Form form = Application.OpenForms[i];

                if (form is IFormBase) (form as IFormBase).SetSkin(skinName);
            }
        }
    }
}
View Code

  4. 效果如下图

 

二. Grid 显示行号以及设置行号列名称

  1. 添加 GridView 方法 CustomDrawRowIndicator

/// <summary>
/// 显示行号和设置行号列头部的字符
/// </summary>
private void gvSummary_CustomDrawRowIndicator(object sender, DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs e)
{
    if (e.Info.Kind == DevExpress.Utils.Drawing.IndicatorKind.Header)
    {
        e.Info.DisplayText = "行号";
    }
    e.Appearance.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
    if (e.Info.IsRowIndicator && e.RowHandle >= 0)
    {
        e.Info.DisplayText = Convert.ToString(e.RowHandle + 1);
    }
}
View Code

  2. 效果如下图

 

三. Grid 下添加固定合计行

  1. 继承 GridView ,自定义表格 GridViewSummary,改变Grid父级控制器

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using DevExpress.XtraGrid.Views.Grid;
using DevExpress.XtraGrid.Columns;
using System.Windows.Forms;
using DevExpress.Skins;
using DevExpress.LookAndFeel;
using System.Drawing;
using DevExpress.XtraGrid;
using System.Collections;

namespace psi.UserControls.SummaryDataGrid
{
    public partial class GridViewSummary : GridView
    {
        #region Browsable properties

        /// <summary>
        /// 是否显示合计行的头部
        /// </summary>
        private bool displaySumRowHeader;
        [Browsable(true), Category("Summary")]
        public bool DisplaySumRowHeader
        {
            get { return displaySumRowHeader; }
            set { displaySumRowHeader = value; }
        }

        /// <summary>
        /// 合计行头部文本
        /// </summary>
        private string sumRowHeaderText;
        [Browsable(true), Category("Summary")]
        public string SumRowHeaderText
        {
            get { return sumRowHeaderText; }
            set { sumRowHeaderText = value; }
        }

        /// <summary>
        /// 合计行头部是否加粗
        /// </summary>
        private bool sumRowHeaderTextBold;
        [Browsable(true), Category("Summary")]
        public bool SumRowHeaderTextBold
        {
            get { return sumRowHeaderTextBold; }
            set { sumRowHeaderTextBold = value; }
        }

        /// <summary>
        /// 需要合计列的列名数组
        /// </summary>
        private string[] summaryColumns;
        [Browsable(true), Category("Summary")]
        public string[] SummaryColumns
        {
            get { return summaryColumns; }
            set { summaryColumns = value; }
        }

        /// <summary>
        /// 合并的列的集合
        /// </summary>
        private List<MergeColumn> mergeColumns = new List<MergeColumn>();
        [Browsable(true), Category("Summary")]
        [TypeConverter(typeof(System.ComponentModel.CollectionConverter))]       
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
        public List<MergeColumn> MergeColumns
        {
            get { return mergeColumns; }
        }
        #endregion

        #region Declare variables

        private SummaryControlContainer summaryControl;
        private Panel parentPanel;

        public SummaryControlContainer SummaryControl
        {
            get{return this.summaryControl;}
        }
        #endregion

        #region Constructor

        public GridViewSummary()
        {
            InitializeComponent();

            this.parentPanel = new Panel();
            summaryControl = new SummaryControlContainer(this);
        }

        #endregion

        /// <summary>
        /// 改变合计列的皮肤样式,使适应DevExpress的皮肤
        /// </summary>
        private void ChangeSummarySkin()
        {
            if (!DesignMode && this.summaryControl != null)
            {
                //Skin CommonSkin = CommonSkins.GetSkin(UserLookAndFeel.Default.ActiveLookAndFeel);
                Skin GridSkin = GridSkins.GetSkin(UserLookAndFeel.Default.ActiveLookAndFeel);
                this.summaryControl.BackColor = GridSkin[GridSkins.SkinGridEvenRow].Color.BackColor;
            }
        }

        /// <summary>
        /// 改变Grid所属的父级控件
        /// </summary>
        private void ChangeParent()
        {
            Control parent = this.GridControl.Parent;
            if (!DesignMode && parent != null)
            {
                gridOldWidth = GridControl.Width;

                summaryControl.InitialHeight = this.RowHeight + 2;
                summaryControl.ForeColor = Color.Transparent;
                summaryControl.Height = summaryControl.InitialHeight;

                this.parentPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
                this.parentPanel.Dock = DockStyle.Top;
                Size panelSize = new Size();
                panelSize.Height = this.GridControl.Height + summaryControl.InitialHeight;
                this.parentPanel.Size = panelSize;

                summaryControl.Dock = DockStyle.Bottom;

                int controlIdx = parent.Controls.GetChildIndex(this.GridControl);
                parent.Controls.Remove(this.GridControl);

                this.GridControl.Location = new Point(0, 0);
                this.GridControl.SizeChanged += delegate(object sender, EventArgs e)
                {
                    GridControl obj = (GridControl)sender;
                    if (obj.Width != gridOldWidth)
                    {
                        AdjustColumnWidth();
                        summaryControl.resizeSumBoxes();
                        gridOldWidth = obj.Width;
                    }
                };

                this.parentPanel.Controls.Add(this.GridControl);
                this.parentPanel.Controls.Add(summaryControl);
                this.parentPanel.SizeChanged += delegate(object sender, EventArgs e)
                {
                    if (Program.HomeForm.WindowState != FormWindowState.Minimized)
                    {
                        Panel obj = (Panel)sender;
                        if (obj.Width != 0 && obj.Width != GridControl.Width)
                        {
                            gridOldWidth = GridControl.Width;
                            GridControl.Width = obj.Width;
                        }
                    }
                };
                parent.Controls.Add(parentPanel);
                parent.Controls.SetChildIndex(parentPanel, controlIdx);
            }
        }

        /// <summary>
        /// 取得所有显示的列
        /// </summary>
        public List<GridColumn> DisaplyColumns
        {
            get
            {
                List<GridColumn> result = new List<GridColumn>();
                GridColumnCollection columns = this.Columns;
                if (columns == null)
                    return result;
                foreach (GridColumn column in columns)
                {
                    if (column.Visible)
                        result.Add(column);
                }

                return result;
            }
        }

        public delegate void BeforeEndInitHandler();
        public event BeforeEndInitHandler BeforeEndInit;   

        public override void EndInit()
        {
            if (BeforeEndInit != null) BeforeEndInit();
            ChangeSummarySkin();
            ChangeParent();
            summaryControl.reCreateSumBoxes();
        }

        protected override void OnLookAndFeelChanged()
        {
            base.OnLookAndFeelChanged();

            ChangeSummarySkin();
            summaryControl.reCreateSumBoxes();
        }

        private int gridOldWidth;

        /// 手动处理列宽度
        public delegate void HandlerColumnWidth(GridColumn column, int maxWidth);
        public event HandlerColumnWidth ColumnWidthHandler;

        /// 不进行宽度调整的列
        public delegate List<GridColumn> ExcludeAdjustWidthColumns();
        public event ExcludeAdjustWidthColumns ExcludeAdjustColumns;

        /// <summary>
        /// 调整列宽度
        /// </summary>
        public void AdjustColumnWidth()
        {
            Control parent = this.GridControl.Parent;
            if (!DesignMode && parent != null)
            {
                int gridWidth = this.GridControl.Width;
                int columnsWidth = this.IndicatorWidth + 18;
                int count = 0;
                foreach (GridColumn column in DisaplyColumns)
                {
                    if (ExcludeAdjustColumns != null)
                    {
                        List<GridColumn> excludeColumns = ExcludeAdjustColumns();
                        if (excludeColumns != null && excludeColumns.Contains(column))
                        {
                            continue;
                        }
                    }
                    count++;
                    column.Width = (column.Width * gridWidth) / gridOldWidth;
                    if (ColumnWidthHandler != null) ColumnWidthHandler(column, gridWidth - columnsWidth);

                    columnsWidth += column.Width;                 
                }
            }   
        }

        /// <summary>
        /// 删除全部行
        /// </summary>
        public void ClearRows()
        {
            bool _mutilSelected = this.OptionsSelection.MultiSelect;//获取当前是否可以多选
            if (!_mutilSelected)
                this.OptionsSelection.MultiSelect = true;
            this.SelectAll();
            this.DeleteSelectedRows();
            this.OptionsSelection.MultiSelect = _mutilSelected;//还原之前是否可以多选状态
        }
    }
}
View Code

  2. GridViewSummary 所属的父级控制器,创建合计行

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Collections;
using DevExpress.XtraGrid;
using System.Drawing;
using DevExpress.XtraGrid.Views.Grid;
using DevExpress.XtraGrid.Views.Base;
using DevExpress.XtraGrid.Columns;
using DevExpress.Skins;
using DevExpress.LookAndFeel;
using System.Data;

namespace psi.UserControls.SummaryDataGrid
{
    public class SummaryControlContainer : UserControl
    {
        #region Declare variables
        private Hashtable sumBoxHash;
        private GridViewSummary gridViewSummary;
        private Label sumRowHeaderLabel;

        private int initialHeight;
        public int InitialHeight
        {
            get { return initialHeight; }
            set { initialHeight = value; }
        }

        public Hashtable SumBoxHash
        {
            get { return this.sumBoxHash; }
        }

        #endregion

        #region Constructors

        public SummaryControlContainer(GridViewSummary gridViewSummary)
        {
            if (gridViewSummary == null)
                throw new Exception("GridViewSummary is null!");

            this.gridViewSummary = gridViewSummary;
            sumBoxHash = new Hashtable();
            sumRowHeaderLabel = new Label();
        }

        #endregion

        #region Functions

        /// <summary>
        /// Checks if passed object is of type of integer
        /// </summary>
        /// <param name="o">object</param>
        /// <returns>true/ false</returns>
        protected bool IsInteger(object o)
        {
            if (o is Int64)
                return true;
            if (o is Int32)
                return true;
            if (o is Int16)
                return true;
            return false;
        }

        /// <summary>
        /// Checks if passed object is of type of decimal/ double
        /// </summary>
        /// <param name="o">object</param>
        /// <returns>true/ false</returns>
        protected bool IsDecimal(object o)
        {
            if (o is Decimal)
                return true;
            if (o is Single)
                return true;
            if (o is Double)
                return true;
            return false;
        }

        /// <summary>
        /// Create summary boxes for each Column of the DataGridView        
        /// </summary>
        public void reCreateSumBoxes()
        {
            ReadOnlyTextBox sumBox;
            Skin GridSkin = GridSkins.GetSkin(UserLookAndFeel.Default.ActiveLookAndFeel);
            Skin CommonSkin = CommonSkins.GetSkin(UserLookAndFeel.Default.ActiveLookAndFeel);
            
            foreach (Control control in sumBoxHash.Values)
            {
                this.Controls.Remove(control);
            }

            int iCnt = 0;

            List<GridColumn> gridColumns = this.gridViewSummary.DisaplyColumns;
            foreach (GridColumn gridColumn in gridColumns)
            {
                sumBox = new ReadOnlyTextBox();
                sumBox.Top = 0;
                sumBox.Height = this.initialHeight;
                sumBox.BorderColor = GridSkin[GridSkins.SkinGridLine].Color.BackColor;
                sumBox.Font = this.gridViewSummary.GridControl.Font;
                sumBox.ForeColor = this.gridViewSummary.GridControl.ForeColor;
                iCnt++;

                bool isMergeColumn = false;
                foreach (MergeColumn mergeColumn in this.gridViewSummary.MergeColumns)
                {
                    if (gridColumn.VisibleIndex >= mergeColumn.StartIndex && gridColumn.VisibleIndex <= mergeColumn.EndIndex)
                    {
                        isMergeColumn = true;
                        
                        if (gridColumn.VisibleIndex == mergeColumn.StartIndex)
                        {
                            if (gridColumns.Count == iCnt + (mergeColumn.EndIndex - mergeColumn.StartIndex + 1))
                            {
                                sumBox.IsLastColumn = true;
                            }
                            if (sumBoxHash.ContainsKey(mergeColumn.ColumnName))
                            {
                                ReadOnlyTextBox textBox = (ReadOnlyTextBox)sumBoxHash[mergeColumn.ColumnName];
                                sumBox.Text = textBox.Text;
                                sumBoxHash.Remove(mergeColumn.ColumnName);
                            }
                            sumBoxHash.Add(mergeColumn.ColumnName, sumBox);
                            this.Controls.Add(sumBox);
                        }
                        break;
                    }
                }
                if (isMergeColumn)
                    continue;


                if (gridColumns.Count == iCnt)
                    sumBox.IsLastColumn = true;

                if(sumBoxHash.ContainsKey(gridColumn.Name))
                {
                    ReadOnlyTextBox textBox = (ReadOnlyTextBox)sumBoxHash[gridColumn.Name];
                    sumBox.Text = textBox.Text;
                    sumBoxHash.Remove(gridColumn.Name);
                }
                sumBoxHash.Add(gridColumn.Name, sumBox);

                if (gridViewSummary.SummaryColumns != null && gridViewSummary.SummaryColumns.Length > 0)
                {
                    for (int iCntX = 0; iCntX < gridViewSummary.SummaryColumns.Length; iCntX++)
                    {
                        if (gridViewSummary.SummaryColumns[iCntX] == gridColumn.Name)
                        {
                            sumBox.TextAlign = TextHelper.TranslateGridColumnAligment(gridColumn.AppearanceCell.TextOptions.HAlignment);
                            sumBox.IsSummary = true;

                            sumBox.FormatString = gridColumn.DisplayFormat.FormatString;
                            if (gridColumn.ColumnType == typeof(System.Int32) || gridColumn.ColumnType == typeof(System.Int16) ||
                                gridColumn.ColumnType == typeof(System.Int64) || gridColumn.ColumnType == typeof(System.Single) ||
                                gridColumn.ColumnType == typeof(System.Double) || gridColumn.ColumnType == typeof(System.Single) ||
                                gridColumn.ColumnType == typeof(System.Decimal))
                                sumBox.Tag = System.Activator.CreateInstance(gridColumn.ColumnType);

                            break;
                        }
                    }
                }

                this.Controls.Add(sumBox);
            }

            if (gridViewSummary.DisplaySumRowHeader)
            {
                sumRowHeaderLabel.Width = this.gridViewSummary.IndicatorWidth;
                sumRowHeaderLabel.Font = new Font(this.gridViewSummary.GridControl.Font, this.gridViewSummary.SumRowHeaderTextBold ? FontStyle.Bold : FontStyle.Regular);
                sumRowHeaderLabel.Anchor = AnchorStyles.Left;
                sumRowHeaderLabel.TextAlign = ContentAlignment.MiddleCenter;
                sumRowHeaderLabel.Height = sumRowHeaderLabel.Font.Height;
                sumRowHeaderLabel.Top = Convert.ToInt32(Convert.ToDouble(this.InitialHeight - sumRowHeaderLabel.Height) / 2F);
                sumRowHeaderLabel.Text = gridViewSummary.SumRowHeaderText;

                sumRowHeaderLabel.ForeColor = this.gridViewSummary.GridControl.ForeColor;
                sumRowHeaderLabel.Margin = new Padding(0);
                sumRowHeaderLabel.Padding = new Padding(0);

                this.Controls.Add(sumRowHeaderLabel);
            }
            resizeSumBoxes();
        }

         /// <summary>
        /// Resize the text Boxes depending on the 
        /// width of the Columns of the GridView
        /// </summary>
        public void resizeSumBoxes()
        {
            this.SuspendLayout();
            if (sumBoxHash.Count > 0)
                try
                {
                    int rowHeaderWidth = gridViewSummary.OptionsView.ShowIndicator ? gridViewSummary.IndicatorWidth - 1: 0;
                    int curPos = rowHeaderWidth;

                    if (gridViewSummary.DisplaySumRowHeader && rowHeaderWidth > 0)
                    {
                        sumRowHeaderLabel.Dock = DockStyle.Left;
                    }
                    else
                    {
                        if (sumRowHeaderLabel.Visible)
                            sumRowHeaderLabel.Visible = false;
                    }

                    Rectangle oldBounds;
                    List<GridColumn> gridColumns = this.gridViewSummary.DisaplyColumns;
                    int mergeColumnWidth = 0;
                    foreach (GridColumn gridColumn in gridColumns)
                    {
                        ReadOnlyTextBox sumBox = null;

                        bool isMergeColumn = false;
                        foreach (MergeColumn mergeColumn in this.gridViewSummary.MergeColumns)
                        {
                            if (gridColumn.VisibleIndex >= mergeColumn.StartIndex && gridColumn.VisibleIndex <= mergeColumn.EndIndex)
                            {
                                isMergeColumn = true;
                                mergeColumnWidth += gridColumn.Width;
                                if (gridColumn.VisibleIndex == mergeColumn.EndIndex)
                                {
                                    sumBox = (ReadOnlyTextBox)sumBoxHash[mergeColumn.ColumnName];
                                    if (sumBox != null)
                                    {
                                        oldBounds = sumBox.Bounds;

                                        sumBox.SetBounds(curPos, 0, mergeColumnWidth, 0, BoundsSpecified.X | BoundsSpecified.Width);

                                        if (!sumBox.Visible)
                                            sumBox.Visible = true;

                                        if (oldBounds != sumBox.Bounds)
                                            sumBox.Invalidate();

                                        curPos += mergeColumnWidth;
                                        mergeColumnWidth = 0;
                                    }
                                }
                            }
                        }
                        if (isMergeColumn)
                            continue;

                        sumBox = (ReadOnlyTextBox)sumBoxHash[gridColumn.Name];
                        if (sumBox != null)
                        {
                            oldBounds = sumBox.Bounds;

                            sumBox.SetBounds(curPos, 0, gridColumn.Width, 0, BoundsSpecified.X | BoundsSpecified.Width);

                            if (!sumBox.Visible)
                                sumBox.Visible = true;

                            if (oldBounds != sumBox.Bounds)
                                sumBox.Invalidate();

                            curPos += gridColumn.Width;
                        }
                    }
                }
                finally
                {
                    this.ResumeLayout();
                }
        }
        #endregion
    }
}
View Code

  3. 合计行的单元格对象

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Text.RegularExpressions;
using psi.Common;

namespace psi.UserControls.SummaryDataGrid
{
    public partial class ReadOnlyTextBox : UserControl
    {

        StringFormat format;
        public event EventHandler TextChanged;

        public ReadOnlyTextBox()
        {
            InitializeComponent();

            format = new StringFormat(StringFormatFlags.NoWrap | StringFormatFlags.FitBlackBox | StringFormatFlags.MeasureTrailingSpaces);
            format.LineAlignment = StringAlignment.Center;

            this.Height = 10;
            this.Width = 10;

            this.Padding = new Padding(2);
        }

        private Color borderColor = Color.Black;

        private bool isSummary;
        public bool IsSummary
        {
            get { return isSummary; }
            set { isSummary = value; }
        }

        private bool isLastColumn;
        public bool IsLastColumn
        {
            get { return isLastColumn; }
            set { isLastColumn = value; }
        }

        private string formatString;
        public string FormatString
        {
            get { return formatString; }
            set { formatString = value; }
        }


        private HorizontalAlignment textAlign = HorizontalAlignment.Left;
        [DefaultValue(HorizontalAlignment.Left)]
        public HorizontalAlignment TextAlign
        {
            get { return textAlign; }
            set
            {
                textAlign = value;
                setFormatFlags();
            }
        }

        private StringTrimming trimming = StringTrimming.None;
        [DefaultValue(StringTrimming.None)]
        public StringTrimming Trimming
        {
            get { return trimming; }
            set
            {
                trimming = value;
                setFormatFlags();
            }
        }

        private void setFormatFlags()
        {
            format.Alignment = TextHelper.TranslateAligment(TextAlign);
            format.Trimming = trimming;
        }

        public Color BorderColor
        {
            get { return borderColor; }
            set { borderColor = value; }
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            int subWidth = 0;
            Rectangle textBounds;

            if (!string.IsNullOrEmpty(formatString) && !string.IsNullOrEmpty(Text))
            {
                decimal num = Convert.ToDecimal(ConvertEx.replaceCurrency(Text));
                if (Text.Contains('%'))
                    num = decimal.Divide(num, 100);
                Text = String.Format("{0:" + formatString + "}", num);
            }

            textBounds = new Rectangle(this.ClientRectangle.X, this.ClientRectangle.Y, this.ClientRectangle.Width, this.ClientRectangle.Height);
            using (Pen pen = new Pen(borderColor))
            {
                if (isLastColumn)
                    subWidth = 1;

                e.Graphics.FillRectangle(new SolidBrush(this.BackColor), this.ClientRectangle);
                e.Graphics.DrawRectangle(pen, this.ClientRectangle.X, this.ClientRectangle.Y, this.ClientRectangle.Width - subWidth, this.ClientRectangle.Height);
                e.Graphics.DrawString(Text, Font, new SolidBrush(ForeColor), textBounds, format);
            }
        }

        protected override void OnTextChanged(EventArgs e)
        {
            base.OnTextChanged(e);
            if (TextChanged != null)
                TextChanged(this, e);
        }

    }
}
View Code

  4. 使用自定义表格 GridViewSummary,效果如下

 

四. Grid 自定义绘制操作列头

  1. 创建  修改列(operate_modify)、删除列(operate_del)

  2. 添加 GridView 方法  CustomDrawColumnHeader,绘制表头

/// <summary>
/// 自定义绘制操作列表头
/// </summary>
private void gvDetail_CustomDrawColumnHeader(object sender, DevExpress.XtraGrid.Views.Grid.ColumnHeaderCustomDrawEventArgs e)
{
    if(e.Column != null)
    {
        if (e.Column == operate_modify)
        {
            e.Info.InnerElements.Clear();
            e.Painter.DrawObject(e.Info);
            e.Handled = true;

            int delColumnWidth = operate_del.VisibleWidth;
            e.Graphics.FillRectangle(new SolidBrush(e.Info.Appearance.BackColor), new Rectangle(e.Bounds.X - delColumnWidth + 1, e.Bounds.Y + 1, e.Bounds.Width + delColumnWidth - 2, e.Bounds.Height - 2));
            e.Graphics.DrawString("操作", new Font("宋体", 9f), new SolidBrush(e.Info.Appearance.ForeColor), new Rectangle((e.Bounds.X - delColumnWidth) + (e.Bounds.Width + delColumnWidth) / 2 - 15, e.Bounds.Y + 8, 30, 15));
        }        
    }
}
View Code

  3. 效果如下

 

五. Grid 绘制复选框和全选框

  1. 创建  复选框列(check)

  2. 添加 GridView 方法 CustomDrawCell,绘制复选框

/// <summary>
/// 自定义绘制删除、修改单元格
/// </summary>
private void gvDetail_CustomDrawCell(object sender, DevExpress.XtraGrid.Views.Base.RowCellCustomDrawEventArgs e)
{
    GridView currentView = sender as GridView;
    if (e.Column == check)
    {
        ControlPaint.DrawCheckBox(e.Graphics, new Rectangle(e.Bounds.X + e.Bounds.Width / 2 - 8, e.Bounds.Y + 3, 16, 16), checkBoxState[e.RowHandle]);
    }        
}
View Code

  3. 添加 GridView 方法 CustomDrawColumnHeader,绘制全选框

/// <summary>
/// 自定义绘制操作列表头
/// </summary>
private void gvDetail_CustomDrawColumnHeader(object sender, DevExpress.XtraGrid.Views.Grid.ColumnHeaderCustomDrawEventArgs e)
{
    if(e.Column != null)
    {
        if (e.Column == check)
        {
            e.Info.InnerElements.Clear();
            e.Painter.DrawObject(e.Info);
            e.Handled = true;

            ControlPaint.DrawCheckBox(e.Graphics, new Rectangle(e.Bounds.X + e.Bounds.Width / 2 - 8, e.Bounds.Y + 6, 16, 16), allSelectState);
        }
    }
}
View Code

  4. 添加 GridView 方法 Click ,判断全选框是否被点击,若有则重绘所有复选框

/// <summary>
/// 判断Grid全选框是否被单击
/// </summary>
/// <param name="gridView"></param>
/// <param name="name"></param>
/// <returns></returns>
public bool ClickGridCheckBox(DevExpress.XtraGrid.Views.Grid.GridView gridView, string name)
{
    bool result = false;
    if (gridView != null)
    {
        DevExpress.XtraGrid.Views.Grid.ViewInfo.GridHitInfo info;
        Point pt = gridView.GridControl.PointToClient(Control.MousePosition);
        info = gridView.CalcHitInfo(pt);
        if (info.InColumn && info.Column != null && info.Column.Name == name)
        {
            return true;
        }
    }
    return result;
} 


private void gvDetail_Click(object sender, EventArgs e)
{
    if (ClickGridCheckBox(this.gvDetail, "check"))
    {
        allSelectState = allSelectState == ButtonState.Checked ? ButtonState.Normal : ButtonState.Checked;
        selCount = allSelectState == ButtonState.Checked?0:checkBoxState.Count;
        
        for (int i = 0; i < checkBoxState.Count; i++)
        {
            SetCheckBoxState(i, allSelectState);
        }
    }
}

/// <summary>
/// 重新绘制复选框
/// </summary>
/// <param name="rowHandle"></param>
/// <param name="state"></param>
private void SetCheckBoxState(int rowHandle, ButtonState state)
{
    checkBoxState[rowHandle] = state;
    //获取点击单元格左上角的坐标
    GridViewInfo info = gvDetail.GetViewInfo() as GridViewInfo;
    GridCellInfo cellInfo = info.GetGridCellInfo(rowHandle, check);

    ControlPaint.DrawCheckBox(gcDetail.CreateGraphics(), new Rectangle(cellInfo.Bounds.X + cellInfo.Bounds.Width / 2 - 8, cellInfo.Bounds.Y + 3, 16, 16), state);

}
View Code

  5. 效果如下

posted on 2018-01-11 21:23 大饼酥 阅读(...) 评论(...) 编辑 收藏

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