Changing Control's property in Update Panel
I am migrating my project开发者_Python百科 from 2003 to asp.net 2008.My problem is about Readonly Textboxes.I have some textboxes as readonly.In 2008,i cant get values from these textboxes if readonly=true in aspx.So i write a function which converts readonly=false and add readonly attribute in run-time.It works well if my textbox is not in update panel.In Update panel,page's controls doesnt come to my class cause just one control comes.It is UpdatePanel.How can i get controls in Update Panel and how can i change it?My code is following.I call it in everypage.
Public Shared Sub clearReadOnlyTextboxes(ByVal pg As Page)
For Each c As Control In pg.Form.Controls
If c.[GetType]().ToString() = "System.Web.UI.WebControls.TextBox" AndAlso DirectCast(c, TextBox).[ReadOnly] Then
DirectCast(c, TextBox).[ReadOnly] = False
DirectCast(c, TextBox).Attributes.Add("readonly", "readonly")
End If
Next
End Sub
I created a new ASP.NET website in Visual Studio 2008 SP1 with .NET 3.5 as the target framework. I was able to use the value from a readonly textbox to update the value of a label.
Here is the example:
Designer:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:textbox ID="Textbox1" runat="server" ReadOnly="True"></asp:textbox>
</div>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</form>
</body>
</html>
Code behind:
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Textbox1.Text = "GANESH";
Label1.Text = Textbox1.Text;
}
}
Any inputs from you will help us help you.
Try Using this.. It will get all the controls in Panel...
Private Sub clearReadOnlyTextboxes(ByVal pg As Control)
For Each c As Control In pg.Controls
Select Case TypeName(c)
Case Is = "TextBox"
If c.[GetType]().ToString() = "System.Web.UI.WebControls.TextBox" AndAlso DirectCast(c, TextBox).[ReadOnly] Then
DirectCast(c, TextBox).[ReadOnly] = False
DirectCast(c, TextBox).Attributes.Add("readonly", "readonly")
End If
Case Is = "Panel"
clearReadOnlyTextboxes(c)
Case Is = "HtmlForm"
clearReadOnlyTextboxes(c)
End Select
Next
End Sub
加载中,请稍侯......
精彩评论