SelectedIndexChanged

[mattyfed]

I have a drop-down menu, and a text box. When the user selects an item from the drop-down menu, I would like to have the textbox.text update to reflect the DropDown.SelectedValue

I know this should be easy but....

This code obviously is not working:

​

Private Sub DropDown_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DropDown.SelectedIndexChanged

txtBox.Text = DropDown.SelectedValue

End Sub
​

Any suggestions? Thanks.

 

[TPM]

Have you bound a value?

 

[mattyfed]

For this I am just using a dropdown list containing 5 standard menu options, but, the overall goal is to have a dropdown list of states, which is fed by an DB table. When the user selects a state, the text box should automatically populate with the zip codes for that state (which are also stored in the DB).

 

[TPM]

Ok so you want to use selectedtext then not selectedvalue.

 

[mattyfed]

I am not sure??? VisualStudio does not offer that as an option for this element?

 

[mattyfed]

Only SelectedIndex, SelectedItem and SelectedValue

 

[TPM]

Sorry, selectedtext is for combobox's. Yes you want the selecteditem.

 

[mattyfed]

It does seems that when I select an item from the dropdown, a postback is not occurring even though I have a Private Sub DropDown_SelectedIndexChanged

Should this force a postback?

 

[TPM]

Set your autopostback to true.

 

[mattyfed]

Works fine. THANKS for your help!

 

[TPM]

Cool. No problem.