how to hide a div of master page on load content page ?

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VB

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

       txtUsername.Focus()
       Me.Master.FindControl("NavigationMenu").Visible = False
       Me.Master.FindControl("btnsignup").Visible = True
       Me.Master.FindControl("btnlogout").Visible = False
       
       Me.Master.FindControl("Label2").Visible = False
       Me.Master.FindControl("lblloginuser").Visible = False

   End Sub

these all are worked fine but when i'm apply this on div then error
Object reference not set to an instance of an object.

Me.Master.FindControl("divwelcome").Visible = False

what me should to do
plz help

thanks

Posted 18-Apr-14 20:21pm

neeraj_

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2 solutions

Solution 1

Hello Neeraj,

Try this
In the page load event of this page add the following code

VB

Dim navDiv As HtmlContainerControl = DirectCast(Me.Master.FindControl("divwelcome"), HtmlContainerControl)
navDiv.Visible = False

Or

check the aspx for id and runat= "server"

<div id="divwelcome" runat="server">

All the best:) pls write back for support.

Posted 18-Apr-14 20:27pm

karthik Udhayakumar

Updated 18-Apr-14 21:14pm

v2

Comments

neeraj_ 19-Apr-14 2:33am

same error sir

karthik Udhayakumar 19-Apr-14 2:45am

did u name your div ?
Can you pls check whether you have passed the <div id="divwelcome" runat="server"> in the aspx

karthik Udhayakumar 19-Apr-14 3:16am

Hello Neeraj,
Dont use solution area for comments:)

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neeraj_ · Accepted Answer · 2014-04-18T21:08:00

Solution 2

we should use runat="server" in div

Posted 18-Apr-14 21:08pm

neeraj_