Hi, Cannot have multiple items selected in dropdown list i m using drop down list in asp.net i got this error,

Question

4.00/5 (1 vote)

See more:

Hi,
Cannot have multiple items selected in dropdown list i m using drop down list in asp.net i got this error, how to solve this error.
I called button click

tnNSD.Attributes.Add("onClick", "return ShowScrollPopup('NSDEntry.aspx','','','NSD Entry','1000','800');");
---

<%			
			Response.CacheControl = "Private";
			Response.Expires= -1;
			Response.AddHeader("pragma", "no-cache");	
		%>

i got error here...

------

private void FillEmployeeNSDDetails()
{
	try
	{
		_objnsd = new clsNSD();	
		string _colname="";
		DataTable _dttable = _objnsd.GetNSDDetails(Convert.ToInt64(Session["ECode"]),Session["GpfSuffix"].ToString(),Convert.ToInt32(Session["Desig"]),Convert.ToInt32(Session["BillCode"]),Session["Orderid"].ToString());
		if (_dttable.Rows.Count > 0)
		{
			foreach(DataColumn dc in _dttable.Columns)
			{
				_colname = dc.ColumnName.Trim();
				((TextBox)pnlNSDEntry.FindControl("txt"+_colname)).Text = _dttable.Rows[0][_colname].ToString();
			}
			if(Session["language"].ToString()!="English")
				btnSave.Text=Session["tupdate"].ToString();
			else
			    btnSave.Text = "Update";
		}
	}
	catch(Exception ex)
	{
		ErrorLabel1.Visible = true;
		ErrorLabel1.ErrorText = ex.Message;
	}
}

Posted 11-Mar-13 23:49pm

manuel_joseph

Updated 12-Mar-13 0:42am

CHill60

v4

Add a Solution

Comments

NaVeN Kumar 12-Mar-13 5:55am

Please post your code here...

manuel_joseph 12-Mar-13 6:02am

I called button click

btnNSD.Attributes.Add("onClick", "return ShowScrollPopup('NSDEntry.aspx','','','NSD Entry','1000','800');");
---

<%
Response.CacheControl = "Private";
Response.Expires= -1;
Response.AddHeader("pragma", "no-cache");
%>

i got error here...

------

private void FillEmployeeNSDDetails()
{
try
{
_objnsd = new clsNSD();
string _colname="";
DataTable _dttable = _objnsd.GetNSDDetails(Convert.ToInt64(Session["ECode"]),Session["GpfSuffix"].ToString(),Convert.ToInt32(Session["Desig"]),Convert.ToInt32(Session["BillCode"]),Session["Orderid"].ToString());
if (_dttable.Rows.Count > 0)
{
foreach(DataColumn dc in _dttable.Columns)
{
_colname = dc.ColumnName.Trim();
((TextBox)pnlNSDEntry.FindControl("txt"+_colname)).Text = _dttable.Rows[0][_colname].ToString();
}
if(Session["language"].ToString()!="English")
btnSave.Text=Session["tupdate"].ToString();
else
btnSave.Text = "Update";
}
}
catch(Exception ex)
{
ErrorLabel1.Visible = true;
ErrorLabel1.ErrorText = ex.Message;
}
}

--------

Nandakishore G N 12-Mar-13 7:14am

check the places where you are binding data to the dropdownlist.because this error occurs when you are trying to bind to the same dropdownlist multiple times.

ZurdoDev 12-Mar-13 7:23am

What's the error?

kishore sharma 12-Mar-13 7:43am

In your code we are unable to find the line where you are getting error as there is no dropdownlist. So the work around is where ever you are binding the dropdownlist and selecting the value ,before the selection try to use property of dropdownlist clearselection() and then you select the value.

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)