FormView.InsertItem(Boolean) Yöntem
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.
Geçerli kaydı veri kaynağına ekler.
public:
virtual void InsertItem(bool causesValidation);
public virtual void InsertItem (bool causesValidation);
abstract member InsertItem : bool -> unit
override this.InsertItem : bool -> unit
Public Overridable Sub InsertItem (causesValidation As Boolean)
Parametreler
- causesValidation
- Boolean
true
yöntemi çağrıldığında sayfa doğrulama gerçekleştirmek için; aksi takdirde , false
.
Özel durumlar
Denetim ekleme modunda olmadığında FormView bu yöntem çağrılır.
-veya-
Denetimle DataSourceViewFormView ilişkili nesne null.
Örnekler
Aşağıdaki örnek, geçerli kaydı veri kaynağındaki InsertItem bir FormView denetime program aracılığıyla eklemek için yönteminin nasıl kullanılacağını gösterir.
<%@ 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 InsertButton_Click(Object sender, EventArgs e)
{
try
{
// Use the InsertItem method to programmatically insert
// the current record in the FormView control.
EmployeeFormView.InsertItem(true);
MessageLabel.Text = "";
}
catch (HttpException ex)
{
MessageLabel.Text = "The FormView control must be in insert mode to insert a record.";
}
}
void CancelButton_Click(Object sender, EventArgs e)
{
// Return the FormView control to read-only
// mode.
EmployeeFormView.ChangeMode(FormViewMode.ReadOnly);
MessageLabel.Text = "";
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>FormView InsertItem Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>FormView InsertItem Example</h3>
<asp:formview id="EmployeeFormView"
datasourceid="EmployeeSource"
allowpaging="true"
datakeynames="EmployeeID"
emptydatatext="No employees found."
runat="server">
<itemtemplate>
<table>
<tr>
<td rowspan="5">
<asp:image id="CompanyLogoImage"
imageurl="~/Images/Logo.jpg"
alternatetext="Company logo"
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="NewButton"
text="New"
commandname="New"
runat="server"/>
</td>
</tr>
</table>
</itemtemplate>
<insertitemtemplate>
<table>
<tr>
<td rowspan="4">
<asp:image id="CompanyLogoEditImage"
imageurl="~/Images/Logo.jpg"
alternatetext="Company logo"
runat="server"/>
</td>
<td colspan="2">
</td>
</tr>
<tr>
<td>
<b><asp:Label runat="server"
AssociatedControlID="FirstNameInsertTextBox"
Text="Name" />:</b>
</td>
<td>
<asp:textbox id="FirstNameInsertTextBox"
text='<%# Bind("FirstName") %>'
runat="server"/>
<asp:textbox id="LastNameInsertTextBox"
text='<%# Bind("LastName") %>'
runat="server"/>
</td>
</tr>
<tr>
<td>
<b><asp:Label runat="server"
AssociatedControlID="TitleInsertTextBox"
Text="Title" />:</b>
</td>
<td>
<asp:textbox id="TitleInsertTextBox"
text='<%# Bind("Title") %>'
runat="server"/>
</td>
</tr>
</table>
</insertitemtemplate>
</asp:formview>
<hr/>
<asp:Button id="InsertButton"
text="Insert Record"
onclick="InsertButton_Click"
runat="server"/>
<asp:Button id="CancelButton"
text="Cancel"
onclick="CancelButton_Click"
runat="server"/>
<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]"
insertcommand="Insert Into [Employees] ([LastName], [FirstName], [Title]) VALUES (@LastName, @FirstName, @Title)"
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 InsertButton_Click(ByVal sender As Object, ByVal e As EventArgs)
Try
' Use the InsertItem method to programmatically insert
' the current record in the FormView control.
EmployeeFormView.InsertItem(True)
MessageLabel.Text = ""
Catch ex As HttpException
MessageLabel.Text = "The FormView control must be in insert mode to insert a record."
End Try
End Sub
Sub CancelButton_Click(ByVal sender As Object, ByVal e As EventArgs)
' Return the FormView control to read-only
' mode.
EmployeeFormView.ChangeMode(FormViewMode.ReadOnly)
MessageLabel.Text = ""
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>FormView InsertItem Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>FormView InsertItem Example</h3>
<asp:formview id="EmployeeFormView"
datasourceid="EmployeeSource"
allowpaging="true"
datakeynames="EmployeeID"
emptydatatext="No employees found."
runat="server">
<itemtemplate>
<table>
<tr>
<td rowspan="5">
<asp:image id="CompanyLogoImage"
imageurl="~/Images/Logo.jpg"
alternatetext="Company logo"
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="NewButton"
text="New"
commandname="New"
runat="server"/>
</td>
</tr>
</table>
</itemtemplate>
<insertitemtemplate>
<table>
<tr>
<td rowspan="4">
<asp:image id="CompanyLogoEditImage"
imageurl="~/Images/Logo.jpg"
alternatetext="Company logo"
runat="server"/>
</td>
<td colspan="2">
</td>
</tr>
<tr>
<td>
<b><asp:Label runat="server"
AssociatedControlID="FirstNameInsertTextBox"
Text="Name" />:</b>
</td>
<td>
<asp:textbox id="FirstNameInsertTextBox"
text='<%# Bind("FirstName") %>'
runat="server"/>
<asp:textbox id="LastNameInsertTextBox"
text='<%# Bind("LastName") %>'
runat="server"/>
</td>
</tr>
<tr>
<td>
<b><asp:Label runat="server"
AssociatedControlID="TitleInsertTextBox"
Text="Title" />:</b>
</td>
<td>
<asp:textbox id="TitleInsertTextBox"
text='<%# Bind("Title") %>'
runat="server"/>
</td>
</tr>
</table>
</insertitemtemplate>
</asp:formview>
<hr/>
<asp:Button id="InsertButton"
text="Insert Record"
onclick="InsertButton_Click"
runat="server"/>
<asp:Button id="CancelButton"
text="Cancel"
onclick="CancelButton_Click"
runat="server"/>
<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]"
insertcommand="Insert Into [Employees] ([LastName], [FirstName], [Title]) VALUES (@LastName, @FirstName, @Title)"
connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server"/>
</form>
</body>
</html>
Açıklamalar
FormView Denetim ekleme modundayken, geçerli kaydı veri kaynağına program aracılığıyla eklemek için yöntemini kullanınInsertItem. Bu yöntem genellikle geçerli kaydı denetimin dışından FormView eklemeniz gerektiğinde (örneğin, sayfadaki farklı bir denetimden) kullanılır.
Not
Bu FormView yöntem çağrıldığında denetimin ekleme modunda olması gerekir; aksi takdirde bir HttpException oluşturulur.
Sayfa doğrulamanın ekleme işleminden önce gerçekleştirilip gerçekleştirilmeyeceğini belirtmek için parametresini causesValidation
kullanın. Bu yöntemin çağrılması ve ItemInserting olaylarını ItemInserted da tetikler.