VB.NET - Unable to fine control inside usercontol and master page : The Official Microsoft ASP.NET Forums

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VB.NET - Unable to fine control inside usercontol and master page

Mar 29, 2010 08:48 AM|LINK

Unable to find control inside the usercontrol in vb.net

code of master page

<head runat="server">
    <title></title>
    <asp:ContentPlaceHolder ID="head" runat="server">
    </asp:ContentPlaceHolder>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
            

        </asp:ContentPlaceHolder>
    </div>
    <div>
        <asp:ContentPlaceHolder ID="ContentPlaceHolder2" runat="server">
           

        </asp:ContentPlaceHolder>
    </div>
    <div>
        <asp:ContentPlaceHolder ID="ContentPlaceHolder3" runat="server">
           

        </asp:ContentPlaceHolder>
    </div>
    </form>
</body>

code of master page 2

<%@ Master Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false"
    CodeFile="MasterPage2.master.vb" Inherits="MasterPage2" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    put a web user control for the navigation
</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="ContentPlaceHolder2" runat="Server">
    advertise
</asp:Content>
<asp:Content ID="Content4" ContentPlaceHolderID="ContentPlaceHolder3" runat="Server">
    <table>
        <tr>
            <td>
               
                <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
                </asp:ContentPlaceHolder>
            </td>
            <td>
                <asp:ContentPlaceHolder ID="ContentPlaceHolder2" runat="server">
                </asp:ContentPlaceHolder>
            </td>
        </tr>
    </table>
</asp:Content>

In the web user control i have insert some link buttons like home, contact etc...

in the default page i want to change the linkbutton css class inside the user control....

i am always get nothing value.......

can anyone solve this issue in vb.net

Thanks & Regards,
Please 'mark as answer' my post if they are helpful.

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Re: VB.NET - Unable to fine control inside usercontol and master page

Mar 29, 2010 10:48 AM|LINK

please use this code

Ctype(Master .FindControl("textbox1"),TextBox) ' For Master Page

Ctype(Master .FindControl("UserControl").FindControl("TextBox"),TextBox) ' For Master Page user control

Thanks
Fawad Ashfaq
Software Engineer
please Mark Answer if helpful

Marked as answer by Hong-Gang Chen - MSFT on Apr 01, 2010 05:28 AM

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Re: VB.NET - Unable to fine control inside usercontol and master page

Mar 29, 2010 11:19 AM|LINK

this doesn't work

<div style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;" id="_mcePaste">Dim link As LinkButton</div> <div style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;" id="_mcePaste"> link = CType(Me.Master.FindControl("LinkButton1"), LinkButton)</div> <div style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;" id="_mcePaste"> link.Text = ""</div>

Dim link As LinkButton

link = CType(Me.Master.FindControl("LinkButton1"), LinkButton)

link.Text = ""

why?

and tell me the packages import in the master page and default page

Thanks & Regards,
Please 'mark as answer' my post if they are helpful.

Edited by dangerouschotu on Mar 29, 2010 11:30 AM

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anhphan

Participant

863 Points

190 Posts

Microsoft

Re: VB.NET - Unable to fine control inside usercontol and master page

Mar 29, 2010 09:10 PM|LINK

This article is helpful http://aspalliance.com/1737_CodeSnip_Find_Control_in_Nested_Master_Pages.all

For your project, I assume that you have a user control inside "Content2" of the nested master page. Then you can do something like

ContentPlaceHolder outerCP = (ContentPlaceHolder)Page.Master.Master.FindControl("ContentPlaceHolder1");
        WebUserControl uc = (WebUserControl)outerCP.FindControl("WebUserControl1");
        LinkButton lnk = (LinkButton)uc.FindControl("LinkButton1");
        lnk.Text = "Text was changed";

It's in C#. You can do similar thing in VB. Hope it works for you.

Anh Phan

Marked as answer by Hong-Gang Chen - MSFT on Apr 01, 2010 05:28 AM

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davleus2

Member

78 Points

26 Posts

Re: VB.NET - Unable to fine control inside usercontol and master page

Mar 29, 2010 10:20 PM|LINK

Is the control that you're looking for on the same level as that of the control that you're searching from from the findcontrol method. The findcontrol method does not dig into child controls. This could possibly be your issue. If so you may want to write a loop/recursive function to dig down into the child controls until you find it.

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Hong-Gang Ch...

All-Star

74696 Points

6768 Posts

Re: VB.NET - Unable to fine control inside usercontol and master page

Apr 01, 2010 05:31 AM|LINK

anhphan

This article is helpful http://aspalliance.com/1737_CodeSnip_Find_Control_in_Nested_Master_Pages.all

For your project, I assume that you have a user control inside "Content2" of the nested master page. Then you can do something like
<div class=dp-highlighter> <div class=bar> <div class=tools>view plaincopy to clipboardprint?</div></div>

ContentPlaceHolder outerCP = (ContentPlaceHolder)Page.Master.Master.FindControl("ContentPlaceHolder1");
WebUserControl uc = (WebUserControl)outerCP.FindControl("WebUserControl1");
LinkButton lnk = (LinkButton)uc.FindControl("LinkButton1");
lnk.Text = "Text was changed";
</div>
ContentPlaceHolder outerCP = (ContentPlaceHolder)Page.Master.Master.FindControl("ContentPlaceHolder1");
        WebUserControl uc = (WebUserControl)outerCP.FindControl("WebUserControl1");
        LinkButton lnk = (LinkButton)uc.FindControl("LinkButton1");
        lnk.Text = "Text was changed";
It's in C#. You can do similar thing in VB. Hope it works for you.

Additionally,

Convert C# to VB.

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