C# DataGridView

 一、使用总结

1.改变某一列标题颜色

   dgv.EnableHeadersVisualStyles = false;

   dgv.Columns[i].HeaderCell.Style.BackColor = Color.Red;

2.添加一列button 

DataGridViewButtonColumn btn = new DataGridViewButtonColumn();
btn.Name = "btnModify";           
btn.UseColumnTextForButtonValue = true;
btn.HeaderText = "";
btn.Text = "修改";
dgv.Columns.Add(btn);

获取点击触发事件

 private void dgvCalibration_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            if (dgvCalibration.Columns[e.ColumnIndex].Name == "btnModify")
            {
                MessageBox.Show("行: " + e.RowIndex.ToString() + ", 列: " + e.ColumnIndex.ToString() + "; 被点击了");
            }

        }

更改button样式

  DataGridViewButtonCell buttonCell = (DataGridViewButtonCell)dgvCalibration.Rows[1].Cells[10];
  buttonCell.FlatStyle = FlatStyle.Popup;
  buttonCell.Style.BackColor = System.Drawing.Color.Red;
  buttonCell.Style.ForeColor = System.Drawing.Color.LightGreen;

 

3.标题居中

// Set the column header style.
            DataGridViewCellStyle columnHeaderStyle = new DataGridViewCellStyle();
            columnHeaderStyle.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
            columnHeaderStyle.BackColor = Color.Beige;
            columnHeaderStyle.Font = new Font("Verdana", 10, FontStyle.Regular);
           
            dgv.ColumnHeadersDefaultCellStyle = columnHeaderStyle;

           

            int gdvCellWidth = dgv.Width / headerList.Count- 2;
            for (int i = 0; i < headerList.Count; i++)
            {
                dgv.Columns[i].SortMode = DataGridViewColumnSortMode.NotSortable;
                dgv.Columns[i].Name = headerList[i];
                dgv.Columns[i].Width = gdvCellWidth;               

            }

 

 4.DataGridView 大小改变，单元格大小跟着改变，占满 

 

private void dgvCalibration_SizeChanged(object sender, EventArgs e)
{
    if (colsCount > 0)
    {
        int gdvCellWidth = dgvCalibration.Width / colsCount - 2;
        for (int i = 0; i < colsCount; i++)
        {
            dgvCalibration.Columns[i].Width = gdvCellWidth;

        }

        int gdvRowHight = dgvCalibration.Height / (rowsCount + 2);
        for (int i = 0; i < rowsCount; i++)
        {
            dgvCalibration.Rows[i].Height = gdvRowHight;

        }
    }
}

 

 

    

二、代码举例

 

   private void InitDataGridView()
        {

            // Create an unbound DataGridView by declaring a column count.
            dataGridView1.ColumnCount = 3;
            dataGridView1.ColumnHeadersVisible = true;
            dataGridView1.AllowUserToAddRows = false;
            dataGridView1.AllowUserToDeleteRows = false;
            dataGridView1.AllowUserToOrderColumns = false;      
            dataGridView1.MultiSelect = false;
            dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
            dataGridView1.ReadOnly = true;

            //数据居中
            dataGridView1.RowsDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
            //标题居中
            dataGridView1.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;

            //设置标题高度
            dataGridView1.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing;
            dataGridView1.ColumnHeadersHeight = 40;

            // Set the column header style.
            DataGridViewCellStyle columnHeaderStyle = new DataGridViewCellStyle();

            columnHeaderStyle.BackColor = Color.Beige;
            columnHeaderStyle.Font = new Font("Verdana", 10, FontStyle.Regular);
            dataGridView1.ColumnHeadersDefaultCellStyle = columnHeaderStyle;

            // Set the column header names.
            dataGridView1.Columns[0].Name = "C1";
            dataGridView1.Columns[0].Width = 40;
            dataGridView1.Columns[1].Name = "C2";
            dataGridView1.Columns[1].Width = 90;
            dataGridView1.Columns[2].Name = "C3";
            dataGridView1.Columns[2].Width = 60;


        }
        private void AddDataGridViewData()
        {
            for (int i = 0; i < 3; i++)
            {
                int index = this.dataGridView1.Rows.Add();
                this.dataGridView1.Rows[index].Cells[0].Value = i.ToString() + "1";
                this.dataGridView1.Rows[index].Cells[1].Value = i.ToString() + "2";
                this.dataGridView1.Rows[index].Cells[2].Value = i.ToString() + "3";
            }           

        }

        private string GetSelectedValue()
        {
            int index= dataGridView1.CurrentRow.Index;
            return dataGridView1.Rows[index].Cells["C2"].Value.ToString();           
            
        }

        //清除DataGridView数据
        private void DataGridViewClear()
        {
            
            for (int i = 0; i < dataGridView1.RowCount; i++)
            {
                dataGridView1.Rows.Remove(dataGridView1.Rows[i]);
                i--;
            }
        }

        //右键显示菜单
        private void dataGridView1_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                if (e.RowIndex >= 0)
                {
                    //若行已是选中状态就不再进行设置
                    if (dataGridView1.Rows[e.RowIndex].Selected == false)
                    {
                        dataGridView1.ClearSelection();
                        dataGridView1.Rows[e.RowIndex].Selected = true;
                    }
                    //只选中一行时设置活动单元格
                    if (dataGridView1.SelectedRows.Count == 1)
                    {
                        dataGridView1.CurrentCell = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];
                    }
                    //弹出操作菜单
                    contextMenuStrip1.Show(MousePosition.X, MousePosition.Y);
                }
            }
        }

 

  public void InitDataGridView(DataGridView dgv)
        {
            // Create an unbound DataGridView by declaring a column count.
            dgv.ColumnCount = 10;
            dgv.ColumnHeadersVisible = true;
            dgv.RowHeadersVisible = false;
            dgv.AllowUserToAddRows = false;
            dgv.AllowUserToDeleteRows = false;
            dgv.AllowUserToOrderColumns = false;
            dgv.MultiSelect = false;
            //dgv.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
            dgv.ReadOnly = false;


            // Set the column header names.

            //添加一列checkbox，会多一列空白
            DataGridViewCheckBoxColumn ChCol0 = new DataGridViewCheckBoxColumn();
            ChCol0.Name = "Used";
            ChCol0.Width = 40;
            ChCol0.TrueValue = "1";
            ChCol0.FalseValue = "0";
            dgv.Columns.Insert(0, ChCol0);

            dgv.Columns[1].Name = "Addr";
            dgv.Columns[1].Width = 40;

            dgv.Columns[2].Name = "SubAddr";
            dgv.Columns[2].Width = 60;

            //dgv.Columns[3].Name = "Type";
            //dgv.Columns[3].Width = 80;
            DataGridViewComboBoxColumn cbCol3 = new DataGridViewComboBoxColumn();
            cbCol3.Items.Add("Single");
            cbCol3.Items.Add("Muti");
            cbCol3.Name = "Type";
            cbCol3.Width = 80;
            dgv.Columns.Insert(3, cbCol3);

            dgv.Columns[4].Name = "Tilts";
            dgv.Columns[4].Width = 100;

            dgv.Columns[5].Name = "Suffix";
            dgv.Columns[5].Width = 100;

            dgv.Columns[6].Name = "Calibrate";
            dgv.Columns[6].Width = 80;
            dgv.Columns[6].ReadOnly = true;


            dgv.Columns[7].Name = "NG";
            dgv.Columns[7].Width = 60;
            dgv.Columns[7].ReadOnly = true;

            dgv.Columns[8].Name = "SetTilt";
            dgv.Columns[8].Width = 60;
            dgv.Columns[8].ReadOnly = true;

            dgv.Columns[9].Name = "NG";
            dgv.Columns[9].Width = 60;
            dgv.Columns[9].ReadOnly = true;

            //多一列空白的删除
            dgv.Columns.RemoveAt(10);
            dgv.Columns.RemoveAt(10);

            
            //数据居中
            dgv.RowsDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;          

            //设置标题高度
            dgv.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing;
            dgv.ColumnHeadersHeight = 30;

            // Set the column header style.
            DataGridViewCellStyle columnHeaderStyle = new DataGridViewCellStyle();

            columnHeaderStyle.BackColor = Color.Beige;
            //columnHeaderStyle.Font = new Font("Verdana", 10, FontStyle.Regular);
            dgv.ColumnHeadersDefaultCellStyle = columnHeaderStyle;

            //指定列的颜色
            DataGridViewCellStyle column67Style = new DataGridViewCellStyle();
            column67Style.BackColor = Color.DeepSkyBlue;
            dgv.Columns[6].DefaultCellStyle = column67Style;
            dgv.Columns[7].DefaultCellStyle = column67Style;
            DataGridViewCellStyle column89Style = new DataGridViewCellStyle();
            column89Style.BackColor = Color.LightSeaGreen;
            dgv.Columns[8].DefaultCellStyle = column89Style;
            dgv.Columns[9].DefaultCellStyle = column89Style;
            //去除标题排序箭头
            for (int i = 0; i < 10; i++)
            {
                dgv.Columns[i].SortMode = DataGridViewColumnSortMode.NotSortable;
            }

            //标题居中
            dgv.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;


        }

        public void AddDataToDataGridView(DataGridView dgv)
        {
            int index = dgv.Rows.Add();
            dgv.Rows[index].Cells[0].Value = "1";
            dgv.Rows[index].Cells[1].Value = "1";
            dgv.Rows[index].Cells[2].Value = "1";
            dgv.Rows[index].Cells[3].Value = "Single";
            dgv.Rows[index].Cells[4].Value = "2 4 6";
            dgv.Rows[index].Cells[5].Value = "-YUI";
            

        }

 

单元格内容显示不同的颜色

  

  private void dgvTask_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
        {
            if (e.RowIndex < 0)
            {
                return;
            }
            DataGridViewRow dgr = dgvTask.Rows[e.RowIndex];
            if(e.ColumnIndex == 3)
            {
                if (dgr.Cells[3].Value.ToString() == TaskStatus.execute)
                {
                    e.CellStyle.ForeColor = Color.Green;//将前景色设置为红色，即字体颜色设置为红色                         e.CellStyle.BackColor = Color.Green;//将背景色设置为绿色，即列的颜色设置为红色  
                   // e.CellStyle.BackColor = Color.Green;//将背景色设置为绿色，即列的颜色设置为红色 

                }
            }

        }

 e.CellStyle.ForeColor = ColorTranslator.FromHtml("#B3EE3A");