instance not set error i am geing in below code...

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protected void btnSearch_Click(object sender, EventArgs e)
    {
        Library lib = new Library();
        
        string sEmp_name = "";
        


        if (ddrCompany.SelectedValue.Trim() == "MEHTASCL")
        {
         sEmp_name = txtEmpname.Text;
        }
        else if (ddrCompany.SelectedValue.Trim() == "MEHTAGSC")
        {
            sEmp_name = txtEmpname.Text;
        }

        
            DataTable dtempdetail = new DataTable();
            dtempdetail = lib.getemployDetail(sCompany, sEmp_name);
                if(dtempdetail.Rows.Count > 0)
                {
                    grdJobHistory.DataSource = dtempdetail;
                    grdJobHistory.DataBind();
                }

    }

Posted 24-May-10 1:23am

avijit1112009

Updated 24-May-10 1:29am

#realJSOP

v2

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Johnny J. 24-May-10 7:25am

What line is creating the error?

2 solutions

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#realJSOP · Answer 1 · 2010-05-24T01:31:00

Either dtempdetail or the Rows collection are null. Since only you can run this under the debugger, it's up to you to determine which is null and how to fix it. I would probably do this:

dtempdetail = lib.getemployDetail(sCompany, sEmp_name);
<big>if (dtempdetail != null)
{</big>
    if (dtempdetail.Rows.Count > 0)
    {
        grdJobHistory.DataSource = dtempdetail;
        grdJobHistory.DataBind();
    }
<big>}</big>

avijit1112009 · Answer 2 · 2010-05-24T01:27:00

Solution 1

if(dtempdetail.Rows.Count > 0)

above line is creating the error....

Posted 24-May-10 1:27am

avijit1112009

Comments

Christian Graus 24-May-10 7:38am

Don;'t push 'answer' to add detail, edit your post. As John said, you set this variable to a new DataTable because you know nothing about programming. That instance is lost right away, and if the method you call can return null, you need to check for it.