textbox will not show the .text changes made through code.

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I have a web project where if the user selects a certain value in a dropdown or combo box, text will be added into a textbox. The text is assigned (by looking the debugger) but is not showing on the webpage.

VB

txtMyTextBox.text = ddMydropdown.text

txtMyOtherTextBox = cboMyCombo.text

Is there a refresh that I need to add for the changes to show? All control have the autopostback set to true.

Posted 3-Oct-11 2:53am

Andy Morris

Updated 3-Oct-11 4:00am

Simon Bang Terkildsen

v3

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Simon Bang Terkildsen 3-Oct-11 10:02am

added ASP.NET tag - the mention of AutoPostBack indicates that this is a ASP.NET web application, and since no other UI framework tag was added; ASP.NET is assumed

walterhevedeich 3-Oct-11 21:20pm

[Post from OP - Deleted from Answers] I was able to solve the problem by using an Ajax UpdatePanel.

walterhevedeich 3-Oct-11 21:21pm

DO NOT post comments as Answers. If you have a question/comment, use the Have a question or Comment? widget.

4 solutions

Solution 6

In the code you have provided you are assigning the text of combobox to textbox control.

VB

txtMyOtherTextBox = cboMyCombo.text

here you need to use text property

VB

txtMyOtherTextBox.Text = cboMyCombo.text

Hope this will help you.

Posted 3-Oct-11 18:12pm

P.Salini

Updated 3-Oct-11 18:13pm

v2

Solution 7

you can use like this

txtMyOtherTextBox .Text=ddMydropdown.SelectedItem.Text;

Posted 3-Oct-11 19:16pm

hitech_s

v2

Solution 1

Are you checking Page.IsPostback before setting the textbox's text?

Posted 3-Oct-11 4:04am

Shameel

Comments

Andy Morris 3-Oct-11 10:17am

Is that on the page load event? or under Asp?

I'm new to the web development aspect and trying to figure it all out.

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devildx2050 · Accepted Answer · 2011-10-03T15:47:00

Solution 5

put your controls inside update panel and
at the load event

use

if(IsPostback)
{
return;
}

Posted 3-Oct-11 15:47pm

devildx2050

Comments

Andy Morris 6-Oct-11 23:21pm

Thanks for the info. It worked like a charm.