ButtonField.ImageUrl Properti
Definisi
Penting
Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.
Mendapatkan atau mengatur gambar yang akan ditampilkan untuk setiap tombol dalam ButtonField objek.
public:
virtual property System::String ^ ImageUrl { System::String ^ get(); void set(System::String ^ value); };public virtual string ImageUrl { get; set; }member this.ImageUrl : string with get, setPublic Overridable Property ImageUrl As StringNilai Properti
Gambar yang akan ditampilkan untuk setiap tombol di ButtonField. Defaultnya adalah string kosong (""), yang menunjukkan bahwa ImageUrl properti tidak diatur.
Contoh
Contoh kode berikut menunjukkan cara menggunakan ImageUrl properti untuk menentukan gambar yang akan ditampilkan untuk setiap tombol dalam ButtonField objek. Agar contoh kode ini ditampilkan, Anda harus menyediakan gambar Anda sendiri.
<%@ 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_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 = CustomersGridView.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>ButtonField ImageUrl Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>ButtonField ImageUrl Example</h3>
<asp:label id="Message"
forecolor="Red"
runat="server"
AssociatedControlID="CustomersGridView"/>
<!-- Set the ImageUrl property of the ButtonField declaratively. -->
<asp:gridview id="CustomersGridView"
datasourceid="CustomersSqlDataSource"
autogeneratecolumns="false"
onrowcommand="CustomersGridView_RowCommand"
runat="server">
<columns>
<asp:buttonfield buttontype="Image"
commandname="Select"
headertext="Select Author"
ImageUrl="~\images\ButtonImage.jpg"/>
<asp:boundfield datafield="ContactName"
headertext="ContactName"/>
<asp:boundfield datafield="ContactTitle"
headertext="ContactTitle"/>
</columns>
</asp:gridview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Northwind sample database. -->
<asp:sqldatasource id="CustomersSqlDataSource"
selectcommand="Select [CustomerID], [ContactName], [ContactTitle] From [Customers]"
connectionstring="<%$ ConnectionStrings:NorthWindConnection%>"
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_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 = CustomersGridView.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>ButtonField ImageUrl Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>ButtonField ImageUrl Example</h3>
<asp:label id="Message"
forecolor="Red"
runat="server"
AssociatedControlID="CustomersGridView"/>
<!-- Set the ImageUrl property of the ButtonField declaratively. -->
<asp:gridview id="CustomersGridView"
datasourceid="CustomersSqlDataSource"
autogeneratecolumns="false"
onrowcommand="CustomersGridView_RowCommand"
runat="server">
<columns>
<asp:buttonfield buttontype="Image"
commandname="Select"
headertext="Select Author"
ImageUrl="~\images\ButtonImage.jpg"/>
<asp:boundfield datafield="ContactName"
headertext="ContactName"/>
<asp:boundfield datafield="ContactTitle"
headertext="ContactTitle"/>
</columns>
</asp:gridview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Northwind sample database. -->
<asp:sqldatasource id="CustomersSqlDataSource"
selectcommand="Select [CustomerID], [ContactName], [ContactTitle] From [Customers]"
connectionstring="<%$ ConnectionStrings:NorthWindConnection%>"
runat="server">
</asp:sqldatasource>
</form>
</body>
</html>
Keterangan
ButtonType Saat properti ButtonField objek diatur ke Image nilai , gunakan ImageUrl properti untuk menentukan gambar yang akan ditampilkan untuk setiap tombol. Gambar ini dapat dalam format file apa pun (.jpg, .gif, .bmp, dan sebagainya), selama browser klien mendukung format tersebut.
Nilai properti ini disimpan dalam status tampilan.
