Dropdown List bind from DataSet can't select specific SelectedValue

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Hi all expert,

I create one dropdownlist in asp.net and this dropdownlist will get data from database by using dataset. here is the code from get from datatset.

C#

TEST.Service ats = new TEST.Service();
DataSet dset =TEST.GetCustomerList();
this.tcustomer.DataSource = dset;
this.tcustomer.DataTextField = "name";
this.tcustomer.DataValueField = "code";
this.tcustomer.DataBind();

For this code, it will display all customers code and name into dropdownlist and the default customer name will be the first one(Customer A).
when i select customer E, the dropdownlist will automatic select to Customer A after i leave my mouse from it.
My question is How can i select any value from dropdownlist and it not select the first values?

Thanks

TONY

Posted 14-Nov-12 14:44pm

soeun tony

Updated 14-Nov-12 15:36pm

Orcun Iyigun

v4

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chenghuichao · Answer 1 · 2012-11-14T15:26:00

Solution 1

Where are these codes? They should be in the code as below

if (! IsPostBack)
{

   //  first time the page is loaded.

}

Posted 14-Nov-12 15:26pm

chenghuichao

Comments

Rahul Rajat Singh 15-Nov-12 1:00am

This seems to be the right solution based on the information provided. +5.

Ram424 · Answer 2 · 2012-11-14T17:12:00

Try this code

C#

ds = BFField.BFActionCombo(CField);
dt = ds.Tables[0];
ddlAction.DataSource = dt;
ddlAction.DataValueField = dt.Columns["Value"].ToString();
ddlAction.DataTextField = dt.Columns["Description"].ToString();
ddlAction.DataBind();
ddlAction.Items.Insert(0, new ListItem("--- Select ---", "0"));