GridView.RowDataBound 事件
定义
重要
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在 GridView 控件中将数据行绑定到数据时发生。
public:
event System::Web::UI::WebControls::GridViewRowEventHandler ^ RowDataBound;public event System.Web.UI.WebControls.GridViewRowEventHandler RowDataBound;member this.RowDataBound : System.Web.UI.WebControls.GridViewRowEventHandler Public Custom Event RowDataBound As GridViewRowEventHandler 事件类型
示例
本主题附带了一个包含源代码的 Visual Studio 网站项目： 下载。
以下示例演示如何使用 RowDataBound 事件修改数据源中字段的值，然后再将其显示在控件中 GridView 。
<%@ Page language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void CustomersGridView_RowDataBound(Object sender, GridViewRowEventArgs e)
{
if(e.Row.RowType == DataControlRowType.DataRow)
{
// Display the company name in italics.
e.Row.Cells[1].Text = "<i>" + e.Row.Cells[1].Text + "</i>";
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridView RowDataBound Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>GridView RowDataBound Example</h3>
<asp:gridview id="CustomersGridView"
datasourceid="CustomersSqlDataSource"
autogeneratecolumns="true"
allowpaging="true"
onrowdatabound="CustomersGridView_RowDataBound"
runat="server">
</asp:gridview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Northwind sample database. Use an ASP.NET -->
<!-- expression to retrieve the connection string value -->
<!-- from the Web.config file. -->
<asp:sqldatasource id="CustomersSqlDataSource"
selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server">
</asp:sqldatasource>
</form>
</body>
</html>
<%@ Page language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub CustomersGridView_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
If e.Row.RowType = DataControlRowType.DataRow Then
' Display the company name in italics.
e.Row.Cells(1).Text = "<i>" & e.Row.Cells(1).Text & "</i>"
End If
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridView RowDataBound Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>GridView RowDataBound Example</h3>
<asp:gridview id="CustomersGridView"
datasourceid="CustomersSqlDataSource"
autogeneratecolumns="true"
allowpaging="true"
onrowdatabound="CustomersGridView_RowDataBound"
runat="server">
</asp:gridview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Northwind sample database. Use an ASP.NET -->
<!-- expression to retrieve the connection string value -->
<!-- from the Web.config file. -->
<asp:sqldatasource id="CustomersSqlDataSource"
selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server">
</asp:sqldatasource>
</form>
</body>
</html>
注解
必须先 GridView 将控件中的每个行绑定到数据源中的记录，然后才能呈现控件。 RowDataBound当对象表示GridViewRow的数据行 () 绑定到控件中的数据时，将引发 该GridView事件。 这使你能够提供一个事件处理方法，该方法执行自定义例程，例如，每当发生此事件时，修改绑定到行的数据的值。
对象 GridViewRowEventArgs 将传递给事件处理方法，该方法使你能够访问所绑定行的属性。 若要访问行中的特定单元格，请使用 Cells 对象的 属性 GridViewRow 中包含的 Row 对象的 属性 GridViewRowEventArgs 。 可以使用 属性确定) 绑定 (标题行、数据行等的行 RowType 类型。
有关如何处理事件的详细信息，请参阅 处理和引发事件。
