ASP.NET Discussion - Accessing form variables in user control

Accessing form variables in user control

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Topic: Accessing form variables in user control

Posted By: sabrin514
Subject: Accessing form variables in user control
Date Posted: 29 November 2005 at 11:44am

Good morning,

I have a form in an aspx page which contains 2 user controls. These two user controls each contain items normally found in a form (such as text boxes). The submit button (and event) is located in the .aspx page.

My problem is that I cannot seem to access the values contained within the text boxes located in the user controls when I go to submit the form.

Any help would be greatly appreciated. Been bashing my head on the desk all morning :(

Thanks!

Replies:

Posted By: michael
Date Posted: 29 November 2005 at 3:42pm

Did you make the textbox private?

If in the User Control you do
Private x as new Textbox

it will not work

Do something like
Friend x as new Textbox

Public x as new Textbox

Then you should be able to read

Dim s as string = myControl.x.Text

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Posted By: sabrin514
Date Posted: 29 November 2005 at 3:53pm

Thank you very much for your response.

In my user Control (fm_ex_provider_info.ascx) I have a textbox declared as:

Public txtBusinessName As New System.Web.UI.WebControls.TextBox

And related code:

Public ReadOnly Property ProvBusinessName() As String

Get

Return Me.txtBusinessName.Text

End Get

End Property

-----------------------------------------------------------------

Then in my host form (ex_provider_input.aspx) I have:

Dim ProviderForm As fm_ex_provider_info1 = DirectCast(Me.ProviderForm, fm_ex_provider_info1) [Declared in top variable section]

Dim BusinessName As String = ProviderForm.ProvBusinessName [This piece of code is in the submit button event)

-----------------------------------------------------------------

The page loads just fine, but I get an error about the object not being set to an instance of the object when I hit the sub,it button. The error appears to be caused by this line of code" "Dim BusinessName As String = ProviderForm.ProvBusinessName ".

Apparently I am missing something. If anyone has any ideas, I would be very grateful. Thank you.

Posted By: sabrin514
Date Posted: 30 November 2005 at 10:06am

Problem was fixed by the following:

Dim ProviderForm As fm_ex_provider_info1 in variable declaration section

Then in page load:

ProviderForm = DirectCast(page.findcontrols("fm_ex_provider_info1", fm_ex_provider_info1))

Finally in submit button event:

Dim BusinessName As String = ProviderForm.ProvBusinessName

Response.Write(strBusinessName) 'For testing purposes

Thanks to everyone that was looking into this.