<%@ Page language="C#" %>
<script runat="server">
void EmployeeFormView_ItemInserting(Object sender, FormViewInsertEventArgs e)
{
MessageLabel.Text = "";
// Iterate through the items in the Values collection
// and verify that the user entered a value for each
// text box displayed in the insert item template. Cancel
// the insert operation if the user left a text box empty.
foreach (DictionaryEntry entry in e.Values)
{
if (entry.Value.Equals(""))
{
// Use the Cancel property to cancel the
// insert operation.
e.Cancel = true;
MessageLabel.Text += "Please enter a value for the " +
entry.Key.ToString() + " field.<br/>";
}
}
}
void EmployeeFormView_ModeChanged(Object sender, EventArgs e)
{
// Clear the MessageLabel Label control when the FormView
// control changes modes.
MessageLabel.Text = "";
}
</script>
<html>
<body>
<form runat="server">
<h3>FormViewInsertEventArgs Example</h3>
<asp:formview id="EmployeeFormView"
datasourceid="EmployeeSource"
allowpaging="true"
datakeynames="EmployeeID"
emptydatatext="No employees found."
oniteminserting="EmployeeFormView_ItemInserting"
onmodechanged="EmployeeFormView_ModeChanged"
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>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>Title:</b>
</td>
<td>
<asp:textbox id="TitleInsertTextBox"
text='<%# Bind("Title") %>'
runat="server"/>
</td>
</tr>
<tr>
<td colspan="2">
<asp:linkbutton id="InsertButton"
text="Insert"
commandname="Insert"
runat="server"/>
<asp:linkbutton id="CancelButton"
text="Cancel"
commandname="Cancel"
runat="server"/>
</td>
</tr>
</table>
</insertitemtemplate>
</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]"
insertcommand="Insert Into [Employees] ([LastName], [FirstName], [Title]) VALUES (@LastName, @FirstName, @Title)"
connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server"/>
</form>
</body>
</html>
Reference : http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.formview.iteminserting(VS.80).aspx#Y799
Saturday, July 30, 2011
FormView.ItemInserting Event
Ex. C#
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