Dropdown changing the selected index

Scot King

Hi, I have added the autopostback="true" and as you can see when you select a county, after selecting California as the state, that the posback sets the county back to --Select--

Why is it doing this? How do I make it hold the county I selected? I have an idea about it, and I have also added OnSelectedIndexChanged="DropDowncounty_SelectedIndexChanged" to the dropdown and a sub in the code behind. How do I make this work?

I have attached the vb.net page here.

See this page at http://localhost:64250/Jumbo-mortgagerates.com/jumbo_loan_limits.aspx

To see it live. Once you select California, the counties will load and then select property type and click the button. The Counties dropdown will reset to the --Select-- option. Why is this happening? The First dropdown is working fine...

2 Replies

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Vipan Sharma9y ago
Accepted answer
If you are binding your dropdown in page load event. Make sure your code under postback conditionas mentioned below:
in c#.net

if (!IsPostBack)
{
// your code of drop down bind

}

in vb.net

If Not Page.IsPostBack Then
// your code
End If

Some time this issue come due to page load event.
If still facing issue kindly share your code with us. your best answer
have a nice day.
Piyush Pansuriya9y ago
Hello,
on selection change event of combobox, your itemsource to combobox should not be refresh..