Drop down list

[Scooter]

I have a drop down list of about 12 part numbers and all I want to do is have it so that when you choose a part number it displays what the part description is in a label. When I try to type the code it doesn't allow me to choose the "Selected Item" without giving me an error. The only thing that it allows is "Selected Index" and when I do that nothing happens. I was just doing a simple If/ElseIf/Then statement for the code. Is that the wrong way to go about this?

[Bucky]

Is this drop-down list databound, or are you populating it

dynamically? If this is so, then it's likely that

in the Page_Load event you're re-binding the control again.

Whenever you DataBind a list, its selected index is set back to -1.

You need to insure that the page is not being posted back

from the client. So, in Page_Load:

if (!this.IsPostBack) { // If it's NOT postback
 // Bind your control(s)
}

 

You also shouldn't have to use a huge block of Ifs to set the

label's text, just set it to the value of the selected item (once you

get the SelectedItem to return something):

 

Label1.Text = DropDownList1.SelectedItem.Value;