dropdownlist value changed to its initial value on button click in updatepanel

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I am using dropdwonlist for getting YES or NO from user and take the action in button click event but it always gives default value NO. I am using masterpage with update panel. So what to do to keep the user selected value?

aspx.cs page:

protected void btnSubmit_Click(object sender, EventArgs e)
{
if(DropDownList1.SelectedValue.ToString() == "YES")
{

//BODY PART
}
}

Posted 12-Jan-10 18:46pm

Manaday Mavani

Updated 12-Jan-10 18:52pm

v2

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2 solutions

Solution 2

Reason is:
Before the execution of the button click event, the dropdown is getting re-bind again.

Please keep the dropdown databind lines of code inside an if condition that can handle the full postback or asynchronous postback (this will depend if you have kept dropdown and the button both or one inside the update panel)

You can use two properties of page for the same:
IsAsyncPostBack & IsPostBack to track it.

Sandeep

Posted 14-Jan-10 4:34am

Sandeep Mewara

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Mehul M Thakkar · Accepted Answer · 2010-01-12T20:26:00

There could be 2 posibilities
1. You have added the items on page load event without checking condition "not postback"
2. May be the value of both the items would be same "Yes".

Can you post your master page files (aspx and cs), page files(aspx and cs) code to identify your problem?

Thanks
Mehul Thakkar