how to concatenate two columns in Dropdownlist asp.net c# sqlerver

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Hi frnds,

am working on asp.net c# SqlServer.

I want to Concatenate two columns(DeptUserName,Dept_Code) from sqlServer Table and display in dropdownlist.

In dropdownlist it should appear as

------Select---------
Sandeep - IT
Ranjith - Finance
Sukumar - Logistics

here Sandeep is DeptUserName and IT is Dept_Code.

So how to Concatenate...

This is my code.

C#

protected void Page_Load(object sender, EventArgs e)
   {
     
       if (!IsPostBack)
       {

           FillDepartments();
       }
   }

private void FillDepartments()
{

//con.Open();
SqlCommand cmdFill = new SqlCommand("SELECT [DeptUserName] + ' ' + ' ' + [Dept_code] as Creator from Depts Order By Dept_code", con);
SqlDataAdapter daFill = new SqlDataAdapter(cmdFill);
DataSet ds = new DataSet();
daFill.Fill(ds);
ddlDepartment.DataSource = ds;
ddlDepartment.DataTextField = "DeptUserName";
ddlDepartment.DataValueField = Dept_code
ddlDepartment.DataBind();
ddlDepartment.Items.Insert(0, new ListItem("---- Select Department ----", "0"));

//con.Close();
}

Please your help is Required.

Thanks.

Posted 3-Sep-14 0:46am

Software Engineer 892

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MukeshSagar · Answer 1 · 2014-09-03T00:48:00

Make the following change in the C# Code:

private void FillDepartments()
{
 
//con.Open();
SqlCommand cmdFill = new SqlCommand("SELECT [DeptUserName] + ' ' + ' ' + [Dept_code] as Creator from Depts Order By Dept_code", con);
SqlDataAdapter daFill = new SqlDataAdapter(cmdFill);
DataSet ds = new DataSet();
daFill.Fill(ds);
ddlDepartment.DataSource = ds;
ddlDepartment.DataTextField = "DeptUserName" + "-" + "Dept_code";
ddlDepartment.DataValueField = Dept_code 
ddlDepartment.DataBind();
ddlDepartment.Items.Insert(0, new ListItem("---- Select Department ----", "0"));
 
//con.Close();
}

ClimerChinna · Answer 2 · 2014-09-03T00:51:00

use below code

C#

private void FillDepartments()
{

SqlCommand cmdFill = new SqlCommand("SELECT [DeptUserName] + '-' + [Dept_code],Dept_Code as Creator from Depts Order By Dept_code", con);
SqlDataAdapter daFill = new SqlDataAdapter(cmdFill);
DataSet ds = new DataSet();
daFill.Fill(ds);
ddlDepartment.DataSource = ds;
ddlDepartment.DataTextField = "Creator";
ddlDepartment.DataValueField = "Dept_code";
ddlDepartment.DataBind();
ddlDepartment.Items.Insert(0, new ListItem("---- Select Department ----", "0"));
}

Gihan Liyanage · Answer 3 · 2014-09-03T00:51:00

Use this Code to fill

C#

DataTable dt = new DataTable();
        SqlConnection connection = new SqlConnection(GetConnectionString());
        try
        {

            connection.Open();
            string sqlStatement = "SELECT DeptUserName + ' - ' + Dept_code AS Creator FROM Depts ";
            SqlCommand sqlCmd = new SqlCommand(sqlStatement, connection);
            SqlDataAdapter sqlDa = new SqlDataAdapter(sqlCmd);

            sqlDa.Fill(dt);
            if (dt.Rows.Count > 0)
            {
                DropDownList1.DataSource = dt;
                DropDownList1.DataTextField = "DeptUserName ";
                DropDownList1.DataValueField = "Dept_code"; 
                DropDownList1.DataBind();
            }
        }
        catch (System.Data.SqlClient.SqlException ex)
        {
            string msg = "Fetch Error:";
            msg += ex.Message;
            throw new Exception(msg);
        }
        finally
        {
            connection.Close();
        }
    }

how to concatenate two columns in Dropdownlist asp.net c# sqlerver

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