GridView.RowDataBound 事件
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
資料列繫結至 GridView 控制項中的資料時發生。
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
事件類型
範例
具有原始程式碼的 Visual Studio 網站專案隨附于本主題: 下載。
下列範例示範如何在控制項中顯示欄位之前,先使用 RowDataBound 事件來修改資料來源中的 GridView 域值。
<%@ 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>
備註
GridView在控制項可以轉譯之前,控制項中的每個資料列都必須系結至資料來源中的記錄。 RowDataBound當) 物件所表示 GridViewRow 的資料列 (系結至 控制項中的資料 GridView 時,就會引發 事件。 這可讓您提供執行自訂常式的事件處理方法,例如在發生此事件時修改系結至資料列的資料值。
GridViewRowEventArgs物件會傳遞至事件處理方法,可讓您存取所系結之資料列的屬性。 若要存取資料列中的特定儲存格,請使用 Cells 物件之 屬性 GridViewRow 中包含的 Row 物件屬性 GridViewRowEventArgs 。 您可以使用 屬性來判斷 (標頭資料列、資料列等) RowType 的資料列類型。
如需如何處理事件的詳細資訊,請參閱 處理和引發事件。