ButtonFieldBase.ButtonType Proprietà
Definizione
Ottiene o imposta il tipo di pulsante da visualizzare nel campo pulsante.Gets or sets the button type to display in the button field.
public:
virtual property System::Web::UI::WebControls::ButtonType ButtonType { System::Web::UI::WebControls::ButtonType get(); void set(System::Web::UI::WebControls::ButtonType value); };public virtual System.Web.UI.WebControls.ButtonType ButtonType { get; set; }member this.ButtonType : System.Web.UI.WebControls.ButtonType with get, setPublic Overridable Property ButtonType As ButtonTypeValore della proprietà
Uno dei valori di ButtonType.One of the ButtonType values. Il valore predefinito è ButtonType.Link.The default is ButtonType.Link.
Eccezioni
Il valore della proprietà ButtonType non è uno dei valori ButtonType.The value for the ButtonType property is not one of the ButtonType values.
Esempio
Nell'esempio di codice riportato di seguito viene illustrato come utilizzare la ButtonType proprietà per specificare che i pulsanti vengono visualizzati nell' ButtonField oggetto di un GridView controllo.The following code example demonstrates how to use the ButtonType property to specify that buttons are displayed in the ButtonField object of a GridView control.
<%@ Page language="C#" %>
<script runat="server">
void AuthorsGridView_RowCommand(Object sender, GridViewCommandEventArgs e)
{
// If multiple ButtonField column fields are used, use the
// CommandName property to determine which button was clicked.
if(e.CommandName=="Select")
{
// Convert the row index stored in the CommandArgument
// property to an Integer.
int index = Convert.ToInt32(e.CommandArgument);
// Get the last name of the selected author from the appropriate
// cell in the GridView control.
GridViewRow selectedRow = AuthorsGridView.Rows[index];
TableCell lastNameCell = selectedRow.Cells[1];
string lastName = lastNameCell.Text;
// Display the selected author.
Message.Text = "You selected " + lastName + ".";
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>ButtonFieldBase ButtonType Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>ButtonFieldBase ButtonType Example</h3>
<asp:label id="Message"
forecolor="Red"
runat="server"
AssociatedControlID="AuthorsGridView" />
<!-- Populate the Columns collection declaratively. -->
<asp:gridview id="AuthorsGridView"
datasourceid="AuthorsSqlDataSource"
autogeneratecolumns="false"
onrowcommand="AuthorsGridView_RowCommand"
runat="server">
<columns>
<asp:buttonfield buttontype="Button"
commandname="Select"
headertext="Select Author"
text="Select"/>
<asp:boundfield datafield="au_lname"
headertext="Last Name"/>
<asp:boundfield datafield="au_fname"
headertext="First Name"/>
</columns>
</asp:gridview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Pubs sample database. -->
<asp:sqldatasource id="AuthorsSqlDataSource"
selectcommand="SELECT [au_lname], [au_fname] FROM [authors]"
connectionstring="server=localhost;database=pubs;integrated security=SSPI"
runat="server">
</asp:sqldatasource>
</div>
</form>
</body>
</html>
<%@ Page language="VB" %>
<script runat="server">
Sub AuthorsGridView_RowCommand(ByVal sender As Object, ByVal e As GridViewCommandEventArgs)
' If multiple ButtonField column fields are used, use the
' CommandName property to determine which button was clicked.
If e.CommandName = "Select" Then
' Convert the row index stored in the CommandArgument
' property to an Integer.
Dim index As Integer = Convert.ToInt32(e.CommandArgument)
' Get the last name of the selected author from the appropriate
' cell in the GridView control.
Dim selectedRow As GridViewRow = AuthorsGridView.Rows(index)
Dim lastNameCell As TableCell = selectedRow.Cells(1)
Dim lastName As String = lastNameCell.Text
' Display the selected author.
Message.Text = "You selected " & lastName & "."
End If
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>ButtonFieldBase ButtonType Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>ButtonFieldBase ButtonType Example</h3>
<asp:label id="Message"
forecolor="Red"
runat="server"
AssociatedControlID="AuthorsGridView"/>
<!-- Populate the Columns collection declaratively. -->
<asp:gridview id="AuthorsGridView"
datasourceid="AuthorsSqlDataSource"
autogeneratecolumns="false"
onrowcommand="AuthorsGridView_RowCommand"
runat="server">
<columns>
<asp:buttonfield buttontype="Button"
commandname="Select"
headertext="Select Author"
text="Select"/>
<asp:boundfield datafield="au_lname"
headertext="Last Name"/>
<asp:boundfield datafield="au_fname"
headertext="First Name"/>
</columns>
</asp:gridview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Pubs sample database. -->
<asp:sqldatasource id="AuthorsSqlDataSource"
selectcommand="SELECT [au_lname], [au_fname] FROM [authors]"
connectionstring="server=localhost;database=pubs;integrated security=SSPI"
runat="server">
</asp:sqldatasource>
</div>
</form>
</body>
</html>
Commenti
Utilizzare la ButtonType proprietà per specificare il tipo di pulsante visualizzato in un campo pulsante.Use the ButtonType property to specify which type of button is displayed in a button field. Nella tabella seguente sono elencati i tipi di pulsanti disponibili.The following table lists the available button types.
| Valore tipo pulsanteButton type value | Visualizza comeDisplays as |
|---|---|
| Button | Pulsante.A button control. |
| Image | Un pulsante con un'immagine.A button with an image. |
| Link | Collegamento.A link. |
Il valore di questa proprietà viene archiviato nello stato di visualizzazione.The value of this property is stored in view state.