dropdownlist..urgent help

5 Apr 2006 2:52 PM

Isabel

I have a dropdownlist ,for which i think the selectindexchnaged event is not
getting fired. Please help.
Thanks,

Here is the code:

public class class1: Systems.Web.UI.Page
{
//all the declarations
   public void GetItems()
   {
        // GetConnection is a function that gets connection string and opens
the
       //connection
    SqlConnection myConn = GetConnection();
    DataSet dsTemp;
    dsTemp = new DataSet();
    string strSQl ="Select name from Company";
    SqlDataAdapter myAda = new SQlAdapter(strSQL,myConn);
    myAda.Fill(dsTemp,"temptab");
                DDLName.DataSource = dsTemp.Tables["temptab"];
    DDLName.DataTextField = dsTemp.Tables["temptab"].Columns[0].ToString();
    DDLName.DataValueField = dsTemp.Tables["temptab"].Columns[0].ToString();
    DDLName.DataBind();
    myConn.Close();
   }
   public void DDLName_SelectedIndexChanged(object sernder,EventArgs e)
   {
      lblLabel2.Text = "Event Fired" + DDLName.SelectItem.Text;
      /// Do some things here like set another DDL List according to
selectedItem
   }
   private void Page_Load(object sender,EventArgs e)
   {
       DDLName.AutoPostBack = true;
       DDLName.EnableViewState = false;
       if(!Postback)
       {
         GetItems();
      }
   }
   protected override void OnInit(EventArgs e)
   {
       DDLName.SelectedIndexChanged += new
EventHandler(DDLName_SelectedIndexChanged);
   }
}

22 May 2006 12:16 PM

Rajesh

Hi Isabel,

It happens sometimes even though you had declared the delegate event of the
control's SelectedIndexChanged it doesn't fire at runtime.Try these options

1.Create a new webpage,test this control on that web page

2.Or use the click event of the control in the same page (instead of the the
new web page, option 1.)

Raj

Show quote

"Isabel" <Isa***@discussions.microsoft.com> wrote in message
news:F3DC990F-401B-4B79-9942-E644A0E38DBB@microsoft.com...
> I have a dropdownlist ,for which i think the selectindexchnaged event is
not
> getting fired. Please help.
> Thanks,
>
> Here is the code:
>
> public class class1: Systems.Web.UI.Page
> {
>   //all the declarations
>    public void GetItems()
>    {
>         // GetConnection is a function that gets connection string and
opens
> the
>        //connection
> SqlConnection myConn = GetConnection();
> DataSet dsTemp;
> dsTemp = new DataSet();
> string strSQl ="Select name from Company";
> SqlDataAdapter myAda = new SQlAdapter(strSQL,myConn);
> myAda.Fill(dsTemp,"temptab");
>                 DDLName.DataSource = dsTemp.Tables["temptab"];
> DDLName.DataTextField = dsTemp.Tables["temptab"].Columns[0].ToString();
> DDLName.DataValueField = dsTemp.Tables["temptab"].Columns[0].ToString();
> DDLName.DataBind();
> myConn.Close();
>    }
>    public void DDLName_SelectedIndexChanged(object sernder,EventArgs e)
>    {
>       lblLabel2.Text = "Event Fired" + DDLName.SelectItem.Text;
>       /// Do some things here like set another DDL List according to
> selectedItem
>    }
>    private void Page_Load(object sender,EventArgs e)
>    {
>        DDLName.AutoPostBack = true;
>        DDLName.EnableViewState = false;
>        if(!Postback)
>        {
>          GetItems();
>       }
>    }
>    protected override void OnInit(EventArgs e)
>    {
>        DDLName.SelectedIndexChanged += new
> EventHandler(DDLName_SelectedIndexChanged);
>    }
> }