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Zone: > NEWSGROUP > Asp.Net Forum > general_asp.net.master_pages_themes_and_navigation_controls Tags:
Item Type: NewsGroup Date Entered: 5/22/2006 1:00:04 PM Date Modified: Subscribers: 0 Subscribe Alert
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reo
Asp.Net User
How to access a control in master page?5/22/2006 1:00:04 PM

0/0

Hi.

I have a Textbox control in my master page. I want to set the text of the textbox based on events triggered in the child page.

For this, I tried to first find the control using the following code:

TextBox

 t3 = new TextBox();
t3 = this.Master.FindControl("MAINTEXT");

But it throws an error : Cannot implicitly convert type 'System.Web.UI.Control' to 'System.Web.UI.WebControls.TextBox'. An explicit conversion exists (are you missing a cast?)

Can anyone help me solving this cast problem?

Your help is appreciated. Thanks.
reo
Asp.Net User
Re: How to access a control in master page?5/22/2006 1:33:18 PM

0/0

Hi Guyz.

I solved it myself.

 Textbox t3 = new TextBox();
t3 = (Textbox)this.Master.FindControl("MAINTEXT");

This is all what was needed!!!! How silly of me : )

 
mychucky
Asp.Net User
Re: How to access a control in master page?8/15/2006 3:39:04 PM

0/0

Many thanks for listing your solution. I have a similar situation with SqlDataSource control. I will try your solution to see if it works. On a second note, how do I call a method in the master page?
bitmask
Asp.Net User
Re: How to access a control in master page?8/15/2006 9:04:16 PM

0/0

If you define a public method and use the @ MasterType directive, you'll be able to use Master.MethodName();

See: Master Pages: Tips, Tricks, Traps
LudovicoVan
Asp.Net User
Re: How to access a control in master page?8/15/2006 9:59:16 PM

0/0

Btw, please note that you are instanciating a new Textbox before calling FindControl, but that's not needed as FindControl itself returns a reference to a control instance...

I mean, the code would just look like:

   TextBox t3;
   t3 = (TextBox)Master.FindControl("MyTextbox");

or simply (which is equivalent):

   TextBox t3 = (TextBox)Master.FindControl("MyTextbox");

Regards. -LV

Julio P. Di Egidio
Software Analyst / Programmer
http://julio.diegidio.name

(Peace X Love] = [++1)
mychucky
Asp.Net User
Re: How to access a control in master page?8/16/2006 12:46:25 PM

0/0

Thanks! I'll give that a try.
nickh
Asp.Net User
Re: How to access a control in master page?8/18/2006 5:33:11 PM

0/0

You may want to create a base class for the mater page's code behind with the method for accessing the text box and reference that as the master type.   I have seen some problems in batch compilation when referencing the methods and properties exposed directly in code behind.
7 Items, 1 Pages 1 |< << Go >> >|



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