TemplateField.InsertItemTemplate Propiedad
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Obtiene o establece la plantilla para mostrar un elemento en modo de inserción en un objeto TemplateField.
public:
virtual property System::Web::UI::ITemplate ^ InsertItemTemplate { System::Web::UI::ITemplate ^ get(); void set(System::Web::UI::ITemplate ^ value); };[System.ComponentModel.Browsable(false)]
[System.Web.UI.PersistenceMode(System.Web.UI.PersistenceMode.InnerProperty)]
[System.Web.UI.TemplateContainer(typeof(System.Web.UI.IDataItemContainer), System.ComponentModel.BindingDirection.TwoWay)]
public virtual System.Web.UI.ITemplate InsertItemTemplate { get; set; }[<System.ComponentModel.Browsable(false)>]
[<System.Web.UI.PersistenceMode(System.Web.UI.PersistenceMode.InnerProperty)>]
[<System.Web.UI.TemplateContainer(typeof(System.Web.UI.IDataItemContainer), System.ComponentModel.BindingDirection.TwoWay)>]
member this.InsertItemTemplate : System.Web.UI.ITemplate with get, setPublic Overridable Property InsertItemTemplate As ITemplateValor de propiedad
Un objeto implementado por ITemplate que contiene la plantilla para mostrar un elemento en modo de inserción en TemplateField. El valor predeterminado es null, lo que indica que esta propiedad no se estableció.
- Atributos
Ejemplos
En el ejemplo de código siguiente se muestra cómo usar la InsertItemTemplate propiedad para crear una plantilla personalizada para un elemento en modo de inserción en una TemplateField fila de campo de un DetailsView control . La plantilla muestra un DropDownList control que permite al usuario seleccionar un valor de una lista predefinida.
<%@ 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 StoresGridView_SelectedIndexChanged(Object sender, EventArgs e)
{
// Set the DataItemIndex property of the DetailsView control to display
// the record selected from the GridView control.
// StoresDetailView.DataItemIndex = StoresGridView.SelectedIndex;
}
void StoresDetailView_ItemInserting(Object sender, DetailsViewInsertEventArgs e)
{
// Get the state value from the DropDownList control in the
// DetailsView control.
String state = GetState();
// Add the state to the dictionary of values to
// insert into the database.
e.Values["state"] = state;
}
void StoresDetailView_ItemInserted (Object sender, DetailsViewInsertedEventArgs e)
{
// Refresh the GridView control after a new record is inserted.
StoresGridView.DataBind ();
}
String GetState()
{
String state;
// Get the DropDownList control that contains the state value
// in the DetailsView control.
DropDownList list = (DropDownList)StoresDetailView.Rows[4].FindControl("StateList");
if (list != null)
{
// Get the selected value of the DropDownList control.
state = list.SelectedItem.Text;
}
else
{
// Set the state to an empty string ("").
state = "";
}
return state;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>TemplateField InsertItemTemplate Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>TemplateField InsertItemTemplate Example</h3>
<table cellspacing="10">
<tr>
<td>
<asp:gridview id="StoresGridView"
datasourceid="StoresSqlDataSource"
autogeneratecolumns="false"
autogenerateselectbutton="true"
datakeynames="stor_id"
onselectedindexchanged="StoresGridView_SelectedIndexChanged"
runat="server">
<headerstyle backcolor="Blue"
forecolor="White"/>
<columns>
<asp:boundfield datafield="stor_name"
headertext="Store Name"/>
<asp:boundfield datafield="stor_address"
headertext="Address"/>
<asp:boundfield datafield="city"
headertext="City"/>
<asp:boundfield datafield="state"
headertext="State"/>
<asp:boundfield datafield="zip"
headertext="ZIP Code"/>
</columns>
</asp:gridview>
</td>
<td valign="top">
<asp:detailsview id="StoresDetailView"
datasourceid="StoresDetailsSqlDataSource"
autogenerateinsertbutton="true"
autogeneraterows="false"
datakeynames="stor_id"
gridlines="Both"
oniteminserting="StoresDetailView_ItemInserting"
oniteminserted="StoresDetailView_ItemInserted"
runat="server">
<headerStyle backcolor="Navy"
forecolor="White"/>
<Fields>
<asp:boundfield datafield="stor_id"
headertext="Store ID"/>
<asp:boundfield datafield="stor_name"
headertext="Store Name"/>
<asp:boundfield datafield="stor_address"
headertext="Address"/>
<asp:boundfield datafield="city"
headertext="City"/>
<asp:templatefield headertext="State">
<itemtemplate>
<%#Eval("state")%>
</itemtemplate>
<insertitemtemplate>
<asp:dropdownlist id="StateList"
datasourceid="StateSqlDataSource"
datatextfield="state"
runat="server"/>
</insertitemtemplate>
</asp:templatefield>
<asp:boundfield datafield="zip"
headertext="ZIP Code"/>
</Fields>
</asp:detailsview>
</td>
</tr>
</table>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Pubs sample database. -->
<asp:sqldatasource id="StoresSqlDataSource"
selectcommand="SELECT [stor_id], [stor_name], [stor_address], [city], [state], [zip] FROM [stores]"
connectionstring="server=localhost;database=pubs;integrated security=SSPI"
runat="server">
</asp:sqldatasource>
<asp:sqldatasource id="StoresDetailsSqlDataSource"
selectcommand="SELECT [stor_id], [stor_name], [stor_address], [city], [state], [zip] FROM [stores]"
insertcommand="INSERT INTO stores([stor_id], [stor_name], [stor_address], [city], [state], [zip]) VALUES (@stor_id, @stor_name, @stor_address, @city, @state, @zip)"
connectionstring="server=localhost;database=pubs;integrated security=SSPI"
runat="server">
</asp:sqldatasource>
<!-- For this example, the states are retrieved from the -->
<!-- state field. For your application, you should use a -->
<!-- more complete source for the state values. -->
<asp:sqldatasource id="StateSqlDataSource"
selectcommand="SELECT Distinct [state] FROM [stores]"
connectionstring="server=localhost;database=pubs;integrated security=SSPI"
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 StoresGridView_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
' Set the DataItemIndex property of the DetailsView control to display
' the record selected from the GridView control.
' StoresDetailView.DataItem = StoresGridView.SelectedIndex
End Sub
Sub StoresDetailView_ItemInserting(ByVal sender As Object, ByVal e As DetailsViewInsertEventArgs)
' Get the state value from the DropDownList control in the
' DetailsView control.
Dim state As String = GetState()
' Add the state to the dictionary of values to
' insert into the database.
e.Values("state") = state
End Sub
Sub StoresDetailView_ItemInserted(ByVal sender As Object, ByVal e As DetailsViewInsertedEventArgs)
' Refresh the GridView control after a new record is inserted.
StoresGridView.DataBind()
End Sub
Function GetState() As String
Dim state As String
' Get the DropDownList control that contains the state value
' in the DetailsView control.
Dim list As DropDownList = CType(StoresDetailView.Rows(4).FindControl("StateList"), DropDownList)
If Not list Is Nothing Then
' Get the selected value of the DropDownList control.
state = list.SelectedItem.Text
Else
' Set the state to an empty string ("").
state = ""
End If
Return state
End Function
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>TemplateField InsertItemTemplate Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>TemplateField InsertItemTemplate Example</h3>
<table cellspacing="10">
<tr>
<td>
<asp:gridview id="StoresGridView"
datasourceid="StoresSqlDataSource"
autogeneratecolumns="false"
autogenerateselectbutton="true"
datakeynames="stor_id"
onselectedindexchanged="StoresGridView_SelectedIndexChanged"
runat="server">
<headerstyle backcolor="Blue"
forecolor="White"/>
<columns>
<asp:boundfield datafield="stor_name"
headertext="Store Name"/>
<asp:boundfield datafield="stor_address"
headertext="Address"/>
<asp:boundfield datafield="city"
headertext="City"/>
<asp:boundfield datafield="state"
headertext="State"/>
<asp:boundfield datafield="zip"
headertext="ZIP Code"/>
</columns>
</asp:gridview>
</td>
<td valign="top">
<asp:detailsview id="StoresDetailView"
datasourceid="StoresDetailsSqlDataSource"
autogenerateinsertbutton="true"
autogeneraterows="false"
datakeynames="stor_id"
gridlines="Both"
oniteminserting="StoresDetailView_ItemInserting"
oniteminserted="StoresDetailView_ItemInserted"
runat="server">
<headerstyle backcolor="Navy"
forecolor="White"/>
<fields>
<asp:boundfield datafield="stor_id"
headertext="Store ID"/>
<asp:boundfield datafield="stor_name"
headertext="Store Name"/>
<asp:boundfield datafield="stor_address"
headertext="Address"/>
<asp:boundfield datafield="city"
headertext="City"/>
<asp:templatefield headertext="State">
<itemtemplate>
<%#Eval("state")%>
</itemtemplate>
<insertitemtemplate>
<asp:dropdownlist id="StateList"
datasourceid="StateSqlDataSource"
datatextfield="state"
runat="server"/>
</insertitemtemplate>
</asp:templatefield>
<asp:boundfield datafield="zip"
headertext="ZIP Code"/>
</fields>
</asp:detailsview>
</td>
</tr>
</table>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Pubs sample database. -->
<asp:sqldatasource id="StoresSqlDataSource"
selectcommand="SELECT [stor_id], [stor_name], [stor_address], [city], [state], [zip] FROM [stores]"
connectionstring="server=localhost;database=pubs;integrated security=SSPI"
runat="server">
</asp:sqldatasource>
<asp:sqldatasource id="StoresDetailsSqlDataSource"
selectcommand="SELECT [stor_id], [stor_name], [stor_address], [city], [state], [zip] FROM [stores]"
insertcommand="INSERT INTO stores([stor_id], [stor_name], [stor_address], [city], [state], [zip]) VALUES (@stor_id, @stor_name, @stor_address, @city, @state, @zip)"
connectionstring="server=localhost;database=pubs;integrated security=SSPI"
runat="server">
</asp:sqldatasource>
<!-- For this example, the states are retrieved from the -->
<!-- state field. For your application, you should use a -->
<!-- more complete source for the state values. -->
<asp:sqldatasource id="StateSqlDataSource"
selectcommand="SELECT Distinct [state] FROM [stores]"
connectionstring="server=localhost;database=pubs;integrated security=SSPI"
runat="server">
</asp:sqldatasource>
</form>
</body>
</html>
Comentarios
Utilice la InsertItemTemplate propiedad para especificar el contenido personalizado que se muestra para un elemento en modo de inserción en un TemplateField objeto . Defina el contenido mediante la creación de una plantilla que especifique cómo se representa el elemento en modo de inserción.
Para especificar una plantilla, coloque primero las etiquetas de apertura y cierre <InsertItemTemplate> entre las etiquetas de apertura y cierre del <TemplateField> elemento. A continuación, agregue el contenido personalizado entre las etiquetas de apertura y cierre <InsertItemTemplate> . El contenido puede ser tan simple como texto sin formato o más complejo (insertar otros controles en la plantilla, por ejemplo).
Para acceder mediante programación a un control definido en una plantilla, determine primero qué TableCell objeto del control enlazado a datos contiene el control. A continuación, use la Controls colección del TableCell objeto para tener acceso al control. También puede usar el FindControl método del TableCell objeto para buscar el control, si el control tiene una ID propiedad especificada.
Nota
No todos los controles enlazados a datos admiten esta plantilla Esta plantilla solo es compatible con controles enlazados a datos que permiten insertar un registro, como el DetailsView control .