Retrive Value from database and bind in dropdown list

Question

0.00/5 (No votes)

See more:

Hello friend

i have retrive value from database and display in dropdown list, but its give error like
"Object reference not set to an instance of an object."

here is code :-

C#

db.GetAddressByOrderID(Convert.ToInt32(txtorder.Text));

                if (ds.Tables[0] != null && ds.Tables[0].Rows.Count > 0)
                {
                     DrpShippingState.Enabled = true;
                     DrpBillingState.SelectedItem.Text = ds.Tables[0].Rows[0]["BillingState"].ToString();    
                     DrpShippingState.Enabled = true;
                     DrpShippingState.SelectedItem.Text = ds.Tables[0].Rows[0]["ShippingState"].ToString();
                }

how can i fetch state name in drop down..???

Thank You To all in Advance

Posted 5-Nov-12 19:05pm

Yatin chauhan

Add a Solution

Comments

Rajesh Kariyavula 6-Nov-12 1:18am

Is the Dropdown Data source set before setting a selected value for it?

Bhushan Shah1988 6-Nov-12 1:23am

did u bind datasource to drop-down list?

Yatin chauhan 6-Nov-12 1:32am

Hi Rajesh,
now i get the probelm. i have bind data source in dropdown . but i bind country list after state .now i bind country before state and based on that bind state so its solve the problem..
Thank You Sir..!!!

manognya kota 6-Nov-12 1:57am

Please mark the question as solved:)

1 solution

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)

NAPorwal(8015059) · Answer 1 · 2012-11-05T19:39:00

Solution 1

Before doing anything inside if construct add this code

C#

DrpShippingState.DataSource = ds.Tables[0];
 DrpShippingState.DataTextField = "BillingState";
 DrpShippingState.DataValueField = "BillingState";
 DrpShippingState.DataBind();

 DrpShippingState.Items.Insert(0, new ListItem("Select State"));

Posted 5-Nov-12 19:39pm

NAPorwal(8015059)

Updated 5-Nov-12 19:55pm

v2

Comments

Yatin chauhan 6-Nov-12 7:26am

Thanks For Reply..
i solve that problem.