7.鼠标移到GridView某一行时改变该行的背景色方法二:
效果图:
做法:和上面的一样就是代码不同 protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { //int i; ////执行循环,保证每条数据都可以更新 //for (i = 0; i < GridView1.Rows.Count; i++) //{ // //首先判断是否是数据行 // if (e.Row.RowType == DataControlRowType.DataRow) // { // //当鼠标停留时更改背景色 // e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'"); // //当鼠标移开时还原背景色 // e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c"); // } //} //如果是绑定数据行 if (e.Row.RowType == DataControlRowType.DataRow) { //鼠标经过时,行背景色变 e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'"); //鼠标移出时,行背景色变 e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'"); }
}
8.GridView实现删除时弹出确认对话框:
效果图:
实现方法: 双击GridView的OnRowDataBound事件; 在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { //如果是绑定数据行 if (e.Row.RowType == DataControlRowType.DataRow) { if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate) { ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:\"" + e.Row.Cells[1].Text + "\"吗?')"); } }
}
9.GridView实现自动编号:
效果图:
实现方法: 双击GridView的OnRowDataBound事件; 在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示: protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { //如果是绑定数据行 //清清月儿http://blog.csdn.net/21aspnet if (e.Row.RowType == DataControlRowType.DataRow) { ////鼠标经过时,行背景色变 //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'"); ////鼠标移出时,行背景色变 //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");
////当有编辑列时,避免出错,要加的RowState判断 //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate) //{ // ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:\"" + e.Row.Cells[1].Text + "\"吗?')"); //}
} if (e.Row.RowIndex != -1) { int id = e.Row.RowIndex + 1; e.Row.Cells[0].Text = id.ToString(); }
}
注意这时最好把前台的第一列的表头该为“编号”,因为以前的第一列被“吃掉”了。 OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">
10.GridView实现自定义时间货币等字符串格式:
效果图: 图1-未格式化前
图2-格式化后
解决方法: 在asp.net 2.0中,如果要在绑定列中显示比如日期格式等,如果用下面的方法是显示不了的
DataFormatString="{0:M-dd-yyyy}" HeaderText="CreationDate" />
主要是由于htmlencode属性默认设置为true,已防止XSS攻击,安全起见而用的,所以,可以有以下两种方法解决
1、
DataFormatString="{0:M-dd-yyyy}" HtmlEncode="false" HeaderText="CreationDate" />
将htmlencode设置为false即可
另外的解决方法为,使用模版列
Text='<%# Eval("CreationDate", "{0:M-dd-yyyy}") %>'>
Text=’<%# Bind("CreationDate", "{0:M-dd-yyyy}") %>'>
前台代码: DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound"> SelectCommand="SELECT top 5 [出生日期], [起薪], [身份证号码], [姓名], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader">
附录-常用格式化公式: {0:C} 货币; {0:D4}由0填充的4个字符宽的字段中显示整数; {0:000.0}四舍五入小数点保留第几位有效数字; {0:N2}小数点保留2位有效数字;{0:N2}% 小数点保留2位有效数字加百分号; {0:D}长日期;{0:d}短日期;{0:yy-MM-dd} 例如07-3-25;;{0:yyyy-MM-dd} 例如2007-3-25
11.GridView实现用“...”代替超长字符串:
效果图:
解决方法:数据绑定后过滤每一行即可 for (int i = 0; i <= GridView1.Rows.Count - 1; i++) { DataRowView mydrv; string gIntro; if (GridView1.PageIndex == 0) { mydrv = myds.Tables["飞狐工作室"].DefaultView[i];//表名 gIntro = Convert.ToString(mydrv["家庭住址"]);//所要处理的字段 GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2); } else { mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)]; gIntro = Convert.ToString(mydrv["家庭住址"]); GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2); } }
调用的方法:
public string SubStr(string sString, int nLeng) { if (sString.Length <= nLeng) { return sString; } string sNewStr = sString.Substring(0, nLeng); sNewStr = sNewStr + "..."; return sNewStr; }
后台全部代码: using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page { SqlConnection sqlcon; SqlCommand sqlcom; string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa"; protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { ViewState["SortOrder"] = "身份证号码"; ViewState["OrderDire"] = "ASC"; bind(); } } protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) { GridView1.EditIndex = e.NewEditIndex; bind(); } protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) { string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'"; sqlcon = new SqlConnection(strCon); sqlcom = new SqlCommand(sqlstr,sqlcon); sqlcon.Open(); sqlcom.ExecuteNonQuery(); sqlcon.Close(); bind(); } protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) { sqlcon = new SqlConnection(strCon); string sqlstr = "update 飞狐工作室 set 姓名='" + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='" + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'"; sqlcom=new SqlCommand(sqlstr,sqlcon); sqlcon.Open(); sqlcom.ExecuteNonQuery(); sqlcon.Close(); GridView1.EditIndex = -1; bind(); } protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) { GridView1.EditIndex = -1; bind(); } public void bind() { string sqlstr = "select top 5 * from 飞狐工作室"; sqlcon = new SqlConnection(strCon); SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open(); myda.Fill(myds, "飞狐工作室"); GridView1.DataSource = myds; GridView1.DataKeyNames = new string[] { "身份证号码" }; GridView1.DataBind(); for (int i = 0; i <= GridView1.Rows.Count - 1; i++) { DataRowView mydrv; string gIntro; if (GridView1.PageIndex == 0) { mydrv = myds.Tables["飞狐工作室"].DefaultView[i]; gIntro = Convert.ToString(mydrv["家庭住址"]); GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2); } else { mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)]; gIntro = Convert.ToString(mydrv["家庭住址"]); GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2); } } sqlcon.Close(); } public string SubStr(string sString, int nLeng) { if (sString.Length <= nLeng) { return sString; } string sNewStr = sString.Substring(0, nLeng); sNewStr = sNewStr + "..."; return sNewStr; } protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { //如果是绑定数据行 if (e.Row.RowType == DataControlRowType.DataRow) { ////鼠标经过时,行背景色变 //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'"); ////鼠标移出时,行背景色变 //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");
////当有编辑列时,避免出错,要加的RowState判断 //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate) //{ // ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:\"" + e.Row.Cells[1].Text + "\"吗?')"); //}
} if (e.Row.RowIndex != -1) { int id = e.Row.RowIndex + 1; e.Row.Cells[0].Text = id.ToString(); }
} }
11.GridView一般换行与强制换行:
效果图:
首先设置 gridview里有一列绑定的数据很长,显示的时候在一行里面显示,页面拉得很宽。 原因是连续英文段为一个整体导致的,在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-break", "break-all")就可以。
如果要给所有的列增加此属性: protected void Page_Load(object sender, EventArgs e) { //正常换行 GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal"); //下面这行是自动换行 GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word"); if (!IsPostBack) { bind();//调用数据绑定即可 } } 总之:善用CSS的word-break:break-all;word-wrap:break-word属性即可,这个属性是通用的对于顽固的南换行问题都可以解决,不局限于GridView。
12.GridView显示隐藏某一列: 本方案为月儿独创,不同于网上其他方式,我觉得用一个CheckBox更人性化,这样可以隐藏不必要的列,让用户自己选择需要出现的列,在处理多列时这是一个很好的解决方案!
效果图: 图1-开始
图2-点击显示的CheckBox后
解决方案: public void bind() { string sqlstr = "select top 5 * from 飞狐工作室"; sqlcon = new SqlConnection(strCon); SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open(); myda.Fill(myds, "飞狐工作室"); GridView1.DataSource = myds; GridView1.DataKeyNames = new string[] { "身份证号码" }; GridView1.DataBind(); sqlcon.Close(); GridView1.Columns[3].Visible = false;//一开始隐藏 CheckBox1.Checked = false;//如果不这样后面的代码会把他True }
双击CheckBox1,在CheckedChanged方法里写上代码,最后代码如下: protected void CheckBox1_CheckedChanged(object sender, EventArgs e) { GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible; Response.Write("GridView1的第4列现在的显示隐藏状态是:"+GridView1.Columns[3].Visible.ToString()); }
注意:CheckBox1的AutoPostBack要True!
后台全部代码如下:
using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page { SqlConnection sqlcon; SqlCommand sqlcom; string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa"; protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { ViewState["SortOrder"] = "身份证号码"; ViewState["OrderDire"] = "ASC"; bind(); } } protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) { GridView1.EditIndex = e.NewEditIndex; bind(); } protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) { string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'"; sqlcon = new SqlConnection(strCon); sqlcom = new SqlCommand(sqlstr,sqlcon); sqlcon.Open(); sqlcom.ExecuteNonQuery(); sqlcon.Close(); bind(); } protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) { sqlcon = new SqlConnection(strCon); string sqlstr = "update 飞狐工作室 set 姓名='" + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='" + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'"; sqlcom=new SqlCommand(sqlstr,sqlcon); sqlcon.Open(); sqlcom.ExecuteNonQuery(); sqlcon.Close(); GridView1.EditIndex = -1; bind(); } protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) { GridView1.EditIndex = -1; bind(); } public void bind() { string sqlstr = "select top 5 * from 飞狐工作室"; sqlcon = new SqlConnection(strCon); SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open(); myda.Fill(myds, "飞狐工作室"); GridView1.DataSource = myds; GridView1.DataKeyNames = new string[] { "身份证号码" }; GridView1.DataBind(); sqlcon.Close(); GridView1.Columns[3].Visible = false; CheckBox1.Checked = false; } protected void CheckBox1_CheckedChanged(object sender, EventArgs e) { GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible; Response.Write("GridView1的第4列现在的显示隐藏状态是:"+GridView1.Columns[3].Visible.ToString()); } }
前台代码: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
http://www.w3.org/1999/xhtml" >
OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" > OnCheckedChanged="CheckBox1_CheckedChanged" Text="显示隐藏家庭住址" />
13.GridView弹出新页面/弹出制定大小位置新窗口:
效果图:
方案一:简单的方法,新窗口不固定大小 OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" > DataNavigateUrlFields="姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}" Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" > DataNavigateUrlFields是链接的字段名,DataNavigateUrlFormatString是路径。
方案二:精确控制弹出窗口大小位置 DataTextField="LastName" HeaderText="LastName">
使用的是结合javascript的window.open方法,关于window.open的参数网上有很多帖子,本站也有许多参考 弹出窗口大全 http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx 即可!
14.GridView固定表头(不用javascript只用CSS!,很好用):
效果图:
代码: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
http://www.w3.org/1999/xhtml" >
OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated" > CssClass="Freezing"/>
用法:CSS设如上的样式,HeaderStyle加CssClass="Freezing,套住GridView的Div设置高度宽度
15.GridView合并表头多重表头无错完美版(以合并3列3行举例)
效果图:
后台代码: using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; using System.Drawing; public partial class _Default : System.Web.UI.Page { SqlConnection sqlcon; SqlCommand sqlcom; string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa"; protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { bind(); } } protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) { GridView1.EditIndex = e.NewEditIndex; bind(); } protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) { sqlcon = new SqlConnection(strCon); string sqlstr = "update 飞狐工作室 set 姓名='" + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='" + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'"; sqlcom=new SqlCommand(sqlstr,sqlcon); sqlcon.Open(); sqlcom.ExecuteNonQuery(); sqlcon.Close(); GridView1.EditIndex = -1; bind(); } protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) { GridView1.EditIndex = -1; bind(); } public void bind() { string sqlstr = "select top 10 * from 飞狐工作室"; sqlcon = new SqlConnection(strCon); SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open(); myda.Fill(myds, "飞狐工作室"); GridView1.DataSource = myds; GridView1.DataKeyNames = new string[] { "身份证号码" }; GridView1.DataBind(); sqlcon.Close(); }
//这里就是解决方案 protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e) { switch (e.Row.RowType) { case DataControlRowType.Header: //第一行表头 TableCellCollection tcHeader = e.Row.Cells; tcHeader.Clear(); tcHeader.Add(new TableHeaderCell()); tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row tcHeader[0].Attributes.Add("bgcolor", "white"); tcHeader[0].Text = ""; tcHeader.Add(new TableHeaderCell()); //tcHeader[1].Attributes.Add("bgcolor", "Red"); tcHeader[1].Attributes.Add("colspan", "6"); //跨Column tcHeader[1].Text = "全部信息
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