FormView.CurrentMode 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 mode FormView entri data kontrol saat ini.
public:
property System::Web::UI::WebControls::FormViewMode CurrentMode { System::Web::UI::WebControls::FormViewMode get(); };[System.ComponentModel.Browsable(false)]
public System.Web.UI.WebControls.FormViewMode CurrentMode { get; }[<System.ComponentModel.Browsable(false)>]
member this.CurrentMode : System.Web.UI.WebControls.FormViewModePublic ReadOnly Property CurrentMode As FormViewModeNilai Properti
Salah FormViewMode satu nilai.
- Atribut
Contoh
Contoh berikut menunjukkan cara menggunakan CurrentMode properti untuk menentukan apakah FormView kontrol dalam mode edit, sisipkan, atau baca-saja. Jika pengguna mencoba menavigasi ke rekaman lain saat FormView kontrol sedang diedit lebih banyak, operasi penomor dibatalkan.
<%@ 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 EmployeeFormView_OnPageIndexChanging(Object sender, FormViewPageEventArgs e)
{
// Cancel the paging operation if the user attempts to navigate
// to another record while the FormView control is in edit mode.
if (EmployeeFormView.CurrentMode == FormViewMode.Edit)
{
e.Cancel = true;
MessageLabel.Text =
"Please complete the update operation before navigating to another record.";
}
}
void EmployeeFormView_OnModeChanged(Object sender, EventArgs e)
{
// Clear the message label.
MessageLabel.Text = "";
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>FormView Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>FormView Example</h3>
<asp:formview id="EmployeeFormView"
datasourceid="EmployeeSource"
allowpaging="true"
datakeynames="EmployeeID"
emptydatatext="No employees found."
onpageindexchanging="EmployeeFormView_OnPageIndexChanging"
onmodechanged="EmployeeFormView_OnModeChanged"
runat="server">
<rowstyle backcolor="LightGreen"
wrap="false"/>
<editrowstyle backcolor="LightBlue"
wrap="false"/>
<itemtemplate>
<table>
<tr>
<td rowspan="4">
<asp:image id="EmployeeImage"
imageurl='<%# Eval("PhotoPath") %>'
alternatetext='<%# Eval("LastName") %>'
runat="server"/>
</td>
<td colspan="2">
</td>
</tr>
<tr>
<td>
<b>Name:</b>
</td>
<td>
<%# Eval("FirstName") %> <%# Eval("LastName") %>
</td>
</tr>
<tr>
<td>
<b>Title:</b>
</td>
<td>
<%# Eval("Title") %>
</td>
</tr>
<tr>
<td colspan="2">
<asp:linkbutton id="Edit"
text="Edit"
commandname="Edit"
runat="server"/>
</td>
</tr>
</table>
</itemtemplate>
<edititemtemplate>
<table>
<tr>
<td rowspan="4">
<asp:image id="EmployeeEditImage"
imageurl='<%# Eval("PhotoPath") %>'
alternatetext='<%# Eval("LastName") %>'
runat="server"/>
</td>
<td colspan="2">
</td>
</tr>
<tr>
<td>
<b>Name:</b>
</td>
<td>
<asp:textbox id="FirstNameUpdateTextBox"
text='<%# Bind("FirstName") %>'
runat="server"/>
<asp:textbox id="LastNameUpdateTextBox"
text='<%# Bind("LastName") %>'
runat="server"/>
</td>
</tr>
<tr>
<td>
<b>Title:</b>
</td>
<td>
<asp:textbox id="TitleUpdateTextBox"
text='<%# Bind("Title") %>'
runat="server"/>
</td>
</tr>
<tr>
<td colspan="2">
<asp:linkbutton id="UpdateButton"
text="Update"
commandname="Update"
runat="server"/>
<asp:linkbutton id="CancelButton"
text="Cancel"
commandname="Cancel"
runat="server"/>
</td>
</tr>
</table>
</edititemtemplate>
</asp:formview>
<br/><br/>
<asp:Label id="MessageLabel"
forecolor="Red"
runat="server"/>
<!-- 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="EmployeeSource"
selectcommand="Select [EmployeeID], [LastName], [FirstName], [Title], [PhotoPath] From [Employees]"
updatecommand="Update [Employees] Set [LastName]=@LastName, [FirstName]=@FirstName, [Title]=@Title Where [EmployeeID]=@EmployeeID"
connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server"/>
</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 EmployeeFormView_OnPageIndexChanging(ByVal sender As Object, ByVal e As FormViewPageEventArgs)
' Cancel the paging operation if the user attempts to navigate
' to another record while the FormView control is in edit mode.
If EmployeeFormView.CurrentMode = FormViewMode.Edit Then
e.Cancel = True
MessageLabel.Text = _
"Please complete the update operation before navigating to another record."
End If
End Sub
Sub EmployeeFormView_OnModeChanged(ByVal sender As Object, ByVal e As EventArgs)
' Clear the message label.
MessageLabel.Text = ""
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>FormView Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>FormView Example</h3>
<asp:formview id="EmployeeFormView"
datasourceid="EmployeeSource"
allowpaging="true"
datakeynames="EmployeeID"
emptydatatext="No employees found."
onpageindexchanging="EmployeeFormView_OnPageIndexChanging"
onmodechanged="EmployeeFormView_OnModeChanged"
runat="server">
<rowstyle backcolor="LightGreen"
wrap="false"/>
<editrowstyle backcolor="LightBlue"
wrap="false"/>
<itemtemplate>
<table>
<tr>
<td rowspan="4">
<asp:image id="EmployeeImage"
imageurl='<%# Eval("PhotoPath") %>'
alternatetext='<%# Eval("LastName") %>'
runat="server"/>
</td>
<td colspan="2">
</td>
</tr>
<tr>
<td>
<b>Name:</b>
</td>
<td>
<%# Eval("FirstName") %> <%# Eval("LastName") %>
</td>
</tr>
<tr>
<td>
<b>Title:</b>
</td>
<td>
<%# Eval("Title") %>
</td>
</tr>
<tr>
<td colspan="2">
<asp:linkbutton id="Edit"
text="Edit"
commandname="Edit"
runat="server"/>
</td>
</tr>
</table>
</itemtemplate>
<edititemtemplate>
<table>
<tr>
<td rowspan="4">
<asp:image id="EmployeeEditImage"
imageurl='<%# Eval("PhotoPath") %>'
alternatetext='<%# Eval("LastName") %>'
runat="server"/>
</td>
<td colspan="2">
</td>
</tr>
<tr>
<td>
<b>Name:</b>
</td>
<td>
<asp:textbox id="FirstNameUpdateTextBox"
text='<%# Bind("FirstName") %>'
runat="server"/>
<asp:textbox id="LastNameUpdateTextBox"
text='<%# Bind("LastName") %>'
runat="server"/>
</td>
</tr>
<tr>
<td>
<b>Title:</b>
</td>
<td>
<asp:textbox id="TitleUpdateTextBox"
text='<%# Bind("Title") %>'
runat="server"/>
</td>
</tr>
<tr>
<td colspan="2">
<asp:linkbutton id="UpdateButton"
text="Update"
commandname="Update"
runat="server"/>
<asp:linkbutton id="CancelButton"
text="Cancel"
commandname="Cancel"
runat="server"/>
</td>
</tr>
</table>
</edititemtemplate>
</asp:formview>
<br/><br/>
<asp:Label id="MessageLabel"
forecolor="Red"
runat="server"/>
<!-- 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="EmployeeSource"
selectcommand="Select [EmployeeID], [LastName], [FirstName], [Title], [PhotoPath] From [Employees]"
updatecommand="Update [Employees] Set [LastName]=@LastName, [FirstName]=@FirstName, [Title]=@Title Where [EmployeeID]=@EmployeeID"
connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server"/>
</form>
</body>
</html>
Keterangan
CurrentMode Gunakan properti untuk menentukan apakah FormView kontrol dalam mode edit, sisipkan, atau baca-saja. Tabel berikut mencantumkan nilai mode yang berbeda.
| Modus | Deskripsi |
|---|---|
FormViewMode.Edit |
Kontrol FormView berada dalam mode edit, yang memungkinkan pengguna memperbarui nilai rekaman. |
FormViewMode.Insert |
FormView Kontrol berada dalam mode sisipkan, yang memungkinkan pengguna untuk menambahkan rekaman baru ke sumber data. |
FormView.ReadOnly |
Kontrol FormView berada dalam mode baca-saja, yang merupakan mode tampilan normal. |
Nilai ini biasanya diatur secara otomatis oleh FormView kontrol saat tombol perintah Baru, Perbarui, Sisipkan, Hapus, atau Batal diklik. FormView Saat kontrol berubah mode sebagai respons terhadap tindakan, peristiwa dalam tabel berikut dinaikkan. Ini memungkinkan Anda membuat penanganan aktivitas kustom yang melakukan rutinitas yang sesuai saat peristiwa terjadi.
| Event | Deskripsi |
|---|---|
| ModeChanged | Terjadi ketika FormView kontrol berubah mode, tetapi setelah mode berubah. Kejadian ini biasanya digunakan untuk melakukan tugas setiap kali FormView kontrol berubah mode. |
| ModeChanging | Terjadi ketika FormView kontrol berubah mode, tetapi sebelum mode berubah. Kejadian ini umumnya digunakan untuk membatalkan perubahan mode. |
Catatan Peristiwa ini tidak dimunculkan ketika Anda mengubah mode secara terprogram dengan menggunakan ChangeMode metode .
