ListViewCommandEventArgs.Item Özellik
Tanım
Önemli
Bazı bilgiler ürünün ön sürümüyle ilgilidir ve sürüm öncesinde önemli değişiklikler yapılmış olabilir. Burada verilen bilgilerle ilgili olarak Microsoft açık veya zımni hiçbir garanti vermez.
Komutun verildiği veri öğesini alır.
public:
property System::Web::UI::WebControls::ListViewItem ^ Item { System::Web::UI::WebControls::ListViewItem ^ get(); };public System.Web.UI.WebControls.ListViewItem Item { get; }member this.Item : System.Web.UI.WebControls.ListViewItemPublic ReadOnly Property Item As ListViewItemÖzellik Değeri
Komutun ListView verildiği denetimden veri öğesi.
Örnekler
Aşağıdaki örnekte, olay işleyicisine geçirilen nesnenin ListViewCommandEventArgs nasıl kullanılacağı gösterilmektedir.
<%@ 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">
protected void EmployeesListView_OnItemCommand(object sender, ListViewCommandEventArgs e)
{
if (String.Equals(e.CommandName, "AddToList"))
{
// Verify that the employee ID is not already in the list. If not, add the
// employee to the list.
ListViewDataItem dataItem = (ListViewDataItem)e.Item;
string employeeID =
EmployeesListView.DataKeys[dataItem.DisplayIndex].Value.ToString();
if (SelectedEmployeesListBox.Items.FindByValue(employeeID) == null)
{
ListItem item = new ListItem(e.CommandArgument.ToString(), employeeID);
SelectedEmployeesListBox.Items.Add(item);
}
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Employee List</title>
</head>
<body>
<form id="form1" runat="server">
<asp:ListView runat="server"
ID="EmployeesListView"
OnItemCommand="EmployeesListView_OnItemCommand"
DataSourceID="EmployeesDataSource"
DataKeyNames="EmployeeID">
<LayoutTemplate>
<table runat="server" id="tblEmployees"
cellspacing="0" cellpadding="1" width="440px" border="1">
<tr id="itemPlaceholder" runat="server"></tr>
</table>
<asp:DataPager ID="EmployeesDataPager" runat="server" PageSize="10">
<Fields>
<asp:NumericPagerField />
</Fields>
</asp:DataPager>
</LayoutTemplate>
<ItemTemplate>
<tr runat="server">
<td>
<asp:Label runat="server" ID="NameLabel"
Text='<%#Eval("LastName") + ", " + Eval("FirstName") %>' />
</td>
<td style="width:80px">
<asp:LinkButton runat="server"
ID="SelectEmployeeButton"
Text="Add To List"
CommandName="AddToList"
CommandArgument='<%#Eval("LastName") + ", " + Eval("FirstName") %>' />
</td>
</tr>
</ItemTemplate>
</asp:ListView>
<br /><br />
<b>Selected Employees:</b><br />
<asp:ListBox runat="server" ID="SelectedEmployeesListBox" Rows="10" Width="300px" />
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the AdventureWorks sample database. Use an ASP.NET -->
<!-- expression to retrieve the connection string value -->
<!-- from the Web.config file. -->
<asp:SqlDataSource ID="EmployeesDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
SelectCommand="SELECT [EmployeeID], [FirstName], [LastName]
FROM HumanResources.vEmployee
ORDER BY [LastName], [FirstName], [EmployeeID]">
</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">
Protected Sub EmployeesListView_OnItemCommand(ByVal sender As Object, _
ByVal e As ListViewCommandEventArgs)
If String.Equals(e.CommandName, "AddToList") Then
' Verify that the employee ID is not already in the list. If not, add the
' employee to the list.
Dim dataItem As ListViewDataItem = CType(e.Item, ListViewDataItem)
Dim employeeID As String = _
EmployeesListView.DataKeys(dataItem.DisplayIndex).Value.ToString()
If SelectedEmployeesListBox.Items.FindByValue(employeeID) Is Nothing Then
Dim item As ListItem = _
New ListItem(e.CommandArgument.ToString(), employeeID)
SelectedEmployeesListBox.Items.Add(item)
End If
End If
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head2" runat="server">
<title>Employee List</title>
</head>
<body>
<form id="form1" runat="server">
<asp:ListView runat="server"
ID="EmployeesListView"
OnItemCommand="EmployeesListView_OnItemCommand"
DataSourceID="EmployeesDataSource"
DataKeyNames="EmployeeID">
<LayoutTemplate>
<table runat="server" id="tblEmployees"
cellspacing="0" cellpadding="1" width="440px" border="1">
<tr id="itemPlaceholder" runat="server"></tr>
</table>
<asp:DataPager ID="EmployeesDataPager" runat="server" PageSize="10">
<Fields>
<asp:NumericPagerField />
</Fields>
</asp:DataPager>
</LayoutTemplate>
<ItemTemplate>
<tr runat="server">
<td>
<asp:Label runat="server" ID="NameLabel"
Text='<%#Eval("LastName") & ", " & Eval("FirstName") %>' />
</td>
<td style="width:80px">
<asp:LinkButton runat="server"
ID="SelectEmployeeButton"
Text="Add To List"
CommandName="AddToList"
CommandArgument='<%#Eval("LastName") & ", " & Eval("FirstName") %>' />
</td>
</tr>
</ItemTemplate>
</asp:ListView>
<br /><br />
<b>Selected Employees:</b><br />
<asp:ListBox runat="server" ID="SelectedEmployeesListBox" Rows="10" Width="300px" />
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the AdventureWorks sample database. Use an ASP.NET -->
<!-- expression to retrieve the connection string value -->
<!-- from the Web.config file. -->
<asp:SqlDataSource ID="EmployeesDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
SelectCommand="SELECT [EmployeeID], [FirstName], [LastName]
FROM HumanResources.vEmployee
ORDER BY [LastName], [FirstName], [EmployeeID]">
</asp:SqlDataSource>
</form>
</body>
</html>
Şunlara uygulanır
Ayrıca bkz.
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