GridViewCancelEditEventArgs.RowIndex Свойство
Определение
Важно!
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Получает индекс строки, в которой содержится вызвавшая событие кнопка отмены.
public:
property int RowIndex { int get(); };public int RowIndex { get; }member this.RowIndex : intPublic ReadOnly Property RowIndex As IntegerЗначение свойства
Отсчитываемый от нуля индекс строки, содержащей вызвавшую событие кнопку отмены.
Примеры
В следующем примере показано, как использовать RowIndex свойство для определения индекса строки, содержащей кнопку "Отмена", нажатой пользователем.
<%@ 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_RowCancelingEdit(Object sender, GridViewCancelEditEventArgs e)
{
// Retrieve the row that raised the event from the Rows
// collection of the GridView control.
GridViewRow row = CustomersGridView.Rows[e.RowIndex];
// The update operation was canceled. Display the
// primary key of the row. In this example, the primary
// key is displayed in the second column of the GridView
// control. To access the text of the column, use the Cells
// collection of the row.
Message.Text = "Update for item " + row.Cells[1].Text + " Canceled.";
}
void CustomersGridView_RowEditing(Object sender, GridViewEditEventArgs e)
{
// The GridView control is entering edit mode. Clear the message label.
Message.Text = "";
}
void CustomersGridView_RowUpdated(Object sender, GridViewUpdatedEventArgs e)
{
// The update operation was successful. Clear the message label.
Message.Text = "";
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridView RowCancelingEdit Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>GridView RowCancelingEdit Example</h3>
<asp:label id="Message"
forecolor="Red"
runat="server"/>
<br/>
<!-- The GridView control automatically sets the columns -->
<!-- specified in the datakeynames attribute as read-only. -->
<!-- No input controls are rendered for these columns in -->
<!-- edit mode. -->
<asp:gridview id="CustomersGridView"
datasourceid="CustomersSqlDataSource"
autogeneratecolumns="true"
autogenerateeditbutton="true"
allowpaging="true"
datakeynames="CustomerID"
onrowcancelingedit="CustomersGridView_RowCancelingEdit"
onrowediting="CustomersGridView_RowEditing"
onrowupdated="CustomersGridView_RowUpdated"
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]"
updatecommand="Update Customers SET CompanyName=@CompanyName, Address=@Address, City=@City, PostalCode=@PostalCode, Country=@Country WHERE (CustomerID = @CustomerID)"
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_RowCancelingEdit(ByVal sender As Object, ByVal e As GridViewCancelEditEventArgs)
' Retrieve the row that raised the event from the Rows
' collection of the GridView control.
Dim row As GridViewRow = CustomersGridView.Rows(e.RowIndex)
' The update operation was canceled. Display the
' primary key of the row. In this example, the primary
' key is displayed in the second column of the GridView
' control. To access the text of the column, use the Cells
' collection of the row.
Message.Text = "Update for item " & row.Cells(1).Text & " Canceled."
End Sub
Sub CustomersGridView_RowEditing(ByVal sender As Object, ByVal e As GridViewEditEventArgs)
' The GridView control is entering edit mode. Clear the message label.
Message.Text = ""
End Sub
Sub CustomersGridView_RowUpdated(ByVal sender As Object, ByVal e As GridViewUpdatedEventArgs)
' The update operation was successful. Clear the message label.
Message.Text = ""
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridView RowCancelingEdit Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>GridView RowCancelingEdit Example</h3>
<asp:label id="Message"
forecolor="Red"
runat="server"/>
<br/>
<!-- The GridView control automatically sets the columns -->
<!-- specified in the datakeynames attribute as read-only. -->
<!-- No input controls are rendered for these columns in -->
<!-- edit mode. -->
<asp:gridview id="CustomersGridView"
datasourceid="CustomersSqlDataSource"
autogeneratecolumns="true"
autogenerateeditbutton="true"
allowpaging="true"
datakeynames="CustomerID"
onrowcancelingedit="CustomersGridView_RowCancelingEdit"
onrowediting="CustomersGridView_RowEditing"
onrowupdated="CustomersGridView_RowUpdated"
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]"
updatecommand="Update Customers SET CompanyName=@CompanyName, Address=@Address, City=@City, PostalCode=@PostalCode, Country=@Country WHERE (CustomerID = @CustomerID)"
connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server">
</asp:sqldatasource>
</form>
</body>
</html>
Комментарии
RowIndex Используйте свойство, чтобы определить индекс строки, содержащей кнопку "Отмена", нажатой пользователем. Индекс строки часто используется для получения этой строки из Rows коллекции GridView элемента управления, что позволяет получить доступ к свойствам строки.