Solved

c#.net - errors with code

Posted on 2011-09-25
8
222 Views
Last Modified: 2013-12-17
I have an error with this line:

DataSet Tbl = new DataSet();

also
   TC_ID == Session["SessionTC_ID"];
                MyDropDown = DropDownList1;
if (flag == "dataset")
        {

            try
            {
                DropDownList MyDropDown = default(DropDownList);
                string TC_ID = null;
                string sqlConnection = null;
                TC_ID == Session["SessionTC_ID"];
                MyDropDown = DropDownList1;


                using (SqlConnection sqlConn = new SqlConnection())
                {
                    sqlConnection = "Data Source=xx.xx.xx.xx;Initial Catalog=sddasdas;Trusted_connection=true;";
                    sqlConn.ConnectionString = sqlConnection;
                    string SQLstring = "SELECT distinct(campaign_name) FROM  campaign WHERE TC_ID = '" + TC_ID + "'";
                    SqlDataAdapter TblAdaptar = new SqlDataAdapter(SQLstring, sqlConn);
                    DataSet Tbl = new DataSet();
                    Tbl.Clear();
                    try
                    {
                        TblAdaptar.Fill(Tbl);
                        MyDropDown.DataSource = Tbl;
                        MyDropDown.DataBind();
                    }
                    catch (Exception ex)
                    {
                    }
                }
            }
            catch (Exception ex)
            {
            }
        }

Open in new window

0
Comment
Question by:GlobaLevel
8 Comments
 
LVL 3

Accepted Solution

by:
afsarsal earned 500 total points
ID: 36596315
can you give the error description.
Did you add using System.Data; row at the top of page
0
 
LVL 10

Author Comment

by:GlobaLevel
ID: 36596354
here is one:
 ArrayList myArray = new ArrayList();
the type or namespace could not be found(are you missing an directive or namespace reference?)

I believe I am adding the right namespace:


using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.IO;
using System.Data.SqlClient;
using System.CodeDom.Compiler;
using System.Diagnostics;
using System.Security.Cryptography;
using System.data;
 
 
0
 
LVL 7

Expert Comment

by:Slimfinger
ID: 36596355
You are using a comparison operator and you need to cast object to string.
TC_ID = (string)Session["SessionTC_ID"];

afsaral is probably correct on the other.
0
 
LVL 7

Expert Comment

by:Slimfinger
ID: 36596358
Add a reference to the dll.  (Right click 'references' in Solution Explorer.)

Good luck :)
0
DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

 
LVL 10

Author Comment

by:GlobaLevel
ID: 36596364
good suggestion...but im curious why I need to add a reference to the dll , in my vb.net projects I dont have to do this..
0
 
LVL 7

Expert Comment

by:Slimfinger
ID: 36596391
The compiler needs to know where the code for the namespace is.
I don't know if VB somehow automates this.
0
 
LVL 12

Expert Comment

by:rajapandian_81
ID: 36597214
Hi,

For Arraylist:
using System.Collections;

Open in new window


For DataSet:
using System.Data;

Open in new window

0
 
LVL 7

Expert Comment

by:Slimfinger
ID: 36949885
So you weren't having an issue with the session var?
0

Featured Post

3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article describes relatively difficult and non-obvious issues that are likely to arise when creating COM class in Visual Studio and deploying it by professional MSI-authoring tools. It is assumed that the reader is already familiar with the cla…
Performance in games development is paramount: every microsecond counts to be able to do everything in less than 33ms (aiming at 16ms). C# foreach statement is one of the worst performance killers, and here I explain why.
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
Many functions in Excel can make decisions. The most simple of these is the IF function: it returns a value depending on whether a condition you describe is true or false. Once you get the hang of using the IF function, you will find it easier to us…

867 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now