Dropdownlist does not keep value when postback

Question

0.00/5 (No votes)

See more:

ASP.NET

I have server side droppdown it does not keeping value on post back when i am clicking on button
please help

Posted 24-Jul-11 21:57pm

mayur csharp G

Add a Solution

Comments

walterhevedeich 25-Jul-11 3:59am

You might be rebinding your data source during postback. You can post your code so we can better understand your problem.

Uday P.Singh 25-Jul-11 4:01am

can you post your drop down code here, so that we can help you better

mayur csharp G 25-Jul-11 4:02am

yes i am rebinding code in this way
what will be the solution
If IsPostBack = False Then
With ddldepository
.DataSource = Clsdbapplvl.FillCompExch(Session("Roleid"), "", Request("SCRID").ToString, "Y", Convert.ToString(Request("seldate")))
.DataTextField = "comp_name"
.DataValueField = "id"
.DataBind()
.SelectedIndex = 0

' txtfromdt.Value = Convert.ToString(Request.QueryString("date"))
End With
End If

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Shameel · Answer 1 · 2011-07-24T22:03:00

Solution 1

You are probably binding your Dropdown to your database in Page_Load event without checking Page.IsPostBack. Try this

C#

void Page_Load (........) {
    if (!this.IsPostBack) {
        //Data Bind Dropdown here
    }
}

Posted 24-Jul-11 22:03pm

Shameel

Comments

mayur csharp G 25-Jul-11 4:41am

you mean to say i should bind dropdown here
if (!this.IsPostBack) {
//here?
}

[no name] 25-Jul-11 14:17pm

Yes.

shefeekcm · Answer 2 · 2011-07-24T22:58:00

Solution 2

Hi,

What i understand from your question is that you did'nt get the databse value in to the dropdown after a postback.The sollution is you need to bind the data in postback and in not postback.

if any doubt in this please make comment on it.
regards,
shefeek

Posted 24-Jul-11 22:58pm

shefeekcm

nareshgundapaneni · Answer 3 · 2011-07-25T00:35:00

Hi,

By reading this Question,you are facing the problem like this i think,you bend to items into the dropdownlist, if any post back is occurred that time you are not geting that value what you selected.if it is you problem means.

use this way

1.add headden filed

2.create one javascript mathod and take dropdownlist value into headden filed value and then you use where you need that (dropdownlist value) by using headden filedvalue..

Thanks,
Naresh.G