Question

When a user logs in with his UserName, I send the UserName to the next page as below code in Page_Load

 lblCmpUserName.Text = Server.UrlDecode(Request.QueryString["Parameter"].ToString());

and then I want to store the “Company details” with the UserName in a SQL Server 2008 table.

I got the error

Must declare the scalar variable “@lblCmpUserName”

Code:

    protected void BtnCmpApproval_Click(object sender, EventArgs e)
    {
       SqlConnection SqlCon = new SqlConnection(GetConnectionString());
       string query = "INSERT INTO Company_Info2 VALUES (@lblCmpUserName, @txtCmpName,  @txtRegCountry, @txtCmpRegNo, @txtCmpEstdate,@AFU1, @txtCmpAddress, @ddlAddrIn)";
       try
       {
          SqlCon.Open();

          SqlCommand cmd = new SqlCommand(query, SqlCon);
          cmd.CommandType = CommandType.Text;
          cmd.Parameters.AddWithValue("@UserName", lblCmpUserName.Text);
          cmd.Parameters.AddWithValue("@Cmp_Name", txtCmpName.Text);
          cmd.Parameters.AddWithValue("@Commercial_RegNo", txtRegCountry.Text);
          cmd.Parameters.AddWithValue("@Comm_Country", txtCmpRegNo.Text);
          cmd.Parameters.AddWithValue("@Cmp_EstablishDate", txtCmpEstdate.Text);
          cmd.Parameters.AddWithValue("@Cmp_DocPath", AFU1.FileName);
          cmd.Parameters.AddWithValue("@txtCmpAddress", txtCmpAddress.Text);
          cmd.Parameters.AddWithValue("@ddlAddrIn", ddlAddrIn.SelectedItem.Text);

          cmd.ExecuteNonQuery();
      }
      catch (Exception ex)
      {
         throw new Exception(ex.Message);
      }
      finally
      { 
         SqlCon.Close();
      }
    } 

Answer 1

I got the solution, I made a mistake in my INSERT query.

It should be like this.

string query="INSERT INTO Company_Info2 VALUES     (@UserName,@Cmp_Name,@Comm_Country,
    @Commercial_RegNo,@Cmp_DocPath,  
    @Cmp_EstablishDate,@Cmp_Address,@IsAddress)";