1.绑定键值及读取
前端设置：DataKeyNames=“Field1，Field2”;
后台设置：GridView1.DataKeyNames=Gridview1.DataKeyNames = new string[] { "PositionID", "DepartmentID" };
后台读取：string key=this.GridView1.DataKeys[i][0].ToString();
2.可编辑列
<asp:TemplateField HeaderText="Field1" ControlStyle-Width="100px" />
<ItemTemplate>
<asp:TextBox ID="Field1" runat="server" Text='<%# Bind("Field1") %>'></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
3.斑马线及鼠标停留变色
前端：onrowdatabound="GridView1_RowDataBound"
后台：
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
for (int i = 0; i < GridView1.Rows.Count; i++) //执行循环，保证每条数据都可以更新
{
if (e.Row.RowType == DataControlRowType.DataRow) //首先判断是否是数据行
{
//当鼠标停留时更改背景色
e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#999'");
//当鼠标移开时还原背景色
e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");
}
if (i % 2 == 0)
this.GridView1.Rows[i].BackColor = System.Drawing.Color.Honeydew;
}
}
4.导出EXCEL
protected void btnExport_Click(object sender, EventArgs e)
{
Response.ContentEncoding = System.Text.Encoding.UTF8;//编码不能错，错了就会乱码，EXCEL解释不了格式就把HTML文本全部显示
Response.AppendHeader("Content-Disposition", "attachment;filename=SampleIssue.xls");
Response.ContentType = "application/ms-excel";
this.EnableViewState = false;
StringWriter sw= new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
GridView1.RenderControl(htw);
Response.Write(sw.ToString());
Response.End();
}
/// <summary>
/// 导出EXCEL，要写一个空的VerifyRenderingInServerForm方法
/// </summary>
/// <param name="control"></param>
public override void VerifyRenderingInServerForm(Control control)
{
// Confirms that an HtmlForm control is rendered for
}
如出现错误提示“RegisterForEventValidation can only be called during Render();”，则在<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>里面加入 EnableEventValidation="false"即可。
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