how do enable paging in a custom code?

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Can someone help me correct this code!

C#

public DataView binddata()
      {

          string ConnectionString = ConfigurationManager.ConnectionStrings["lawrece"].ConnectionString;
          SqlConnection con = new SqlConnection(ConnectionString);

          String StrQuery = "select * from TableName";
          SqlDataAdapter adp = new SqlDataAdapter(StrQuery, con);
          DataSet ds = new DataSet();
          adp.Fill(ds);
          if (ViewState["sortExpr"] != null)
          {
              DataView dv = new DataView(ds.Tables[0]);
              dv.Sort = (string)ViewState["sortExpr"];
          }

          else
          {
              DataView dv = ds.Tables[0].DefaultView;
              return dv;
          }


      }
 protected void GridView2_PageIndexChanging(Object sender, GridViewPageEventArgs e)
      {
          GridView2.PageIndex = e.NewPageIndex;
          GridView2.DataSource = bindgrid();
          GridView2.DataBind();
      }

But when i build the above i get these errors

C#

'lawrence.open.Default.bindgrid()': not all code paths return a value'

Am i missing a line on that code? The aim is to enable paging on my grid view so that when the page number is clicked the page will open.

If there is another to do that i will appreciate....thanks

Posted 6-Aug-13 2:43am

Difameg Network Nigeria

Updated 6-Aug-13 2:50am

Thanks7872

v2

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Harshil_Raval · Answer 1 · 2013-08-06T02:46:00

Hi,

see my comments on your code

C#

public DataView binddata()
        {
 
            string ConnectionString = ConfigurationManager.ConnectionStrings["lawrece"].ConnectionString;
            SqlConnection con = new SqlConnection(ConnectionString);
 
            String StrQuery = "select * from TableName";
            SqlDataAdapter adp = new SqlDataAdapter(StrQuery, con);
            DataSet ds = new DataSet();
            adp.Fill(ds);
            DataView dv = new DataView();    // create dataview object here
            if (ViewState["sortExpr"] != null)
            {
                dv = new DataView(ds.Tables[0]);
                dv.Sort = (string)ViewState["sortExpr"];
            }
 
            else
            {
                dv = ds.Tables[0].DefaultView;
                
            }
 
             return dv;   //return outside of if,else
        }

Hope it helps