Sorting and paging in a dynamic gridview control.

Posted on 2011-02-16
Last Modified: 2012-05-11
I am dynamically creating a series of tab, each with a gridview binding to data. Everything works great but I would like to allow sorting and paging.  I have tried several example I found online but nothing seems to work correctly.

What is the easiest way to achieve this?  When a create a Sorting event, I can't see the gridview control.  Does this event need to be part of the loop?

Any advice is appreciated.  My code to create the tabs and gridviews is below:
protected void createMyOrgTabs()
            tabCY.HeaderText = DateTime.Now.Year.ToString();

            //Create SQL Connection
            SqlConnection cn = new SqlConnection();
            cn.ConnectionString = ConfigurationManager.ConnectionStrings["myConnection"].ConnectionString;

            //Run Insert Stored procedure
            SqlCommand cmd = new SqlCommand();
            SqlDataReader rs;
            cmd.CommandText = "myCountProcedure";
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.Add(new SqlParameter("@param1", Session["param"].ToString()));
            cmd.Connection = cn;
            rs = cmd.ExecuteReader();

            int Count = Convert.ToInt32(rs["value"]);
            //Clear Parameters
            //Close Datareader
            //Close Connection
            //Dispose Connection
            for(int i = 1; i <= Count; i++)
                //Create Dynamic TabPanels
                AjaxControlToolkit.TabPanel tp = new AjaxControlToolkit.TabPanel();
                tp.ID = tp + i.ToString();
                tp.HeaderText = DateTime.Now.AddYears(-i).Year.ToString();

                //Open SQL Connection

                //Run Insert Stored procedure
                cmd.CommandText = "myDetailProcedure";
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.Parameters.Add(new SqlParameter("@param1", Session["param"].ToString()));
                cmd.Parameters.Add(new SqlParameter("@param2", DateTime.Now.AddYears(-i).Year.ToString()));
                cmd.Connection = cn;
                rs = cmd.ExecuteReader();

                DataTable dt = new DataTable();
                //Session["myDT"] = dt;
                dt.DefaultView.Sort = "orgName";

                //Create Year Label
                TextBox lblYear = new TextBox();
                lblYear.Text = DateTime.Now.AddYears(-i).Year.ToString() + " Organizations";
                lblYear.CssClass = "id";

                //Create Gridview
                GridView gvMyOrgs = new GridView();
                gvMyOrgs.DataSource = dt.DefaultView;
                gvMyOrgs.ID = "gvMyOrgs";
                gvMyOrgs.AutoGenerateColumns = false;
                gvMyOrgs.AllowSorting = true;
                gvMyOrgs.Sorting += new GridViewSortEventHandler(this.gvMyOrgs_Sorting);
                gvMyOrgs.EnableSortingAndPagingCallbacks = true;
                gvMyOrgs.AlternatingRowStyle.BackColor = System.Drawing.ColorTranslator.FromHtml("#ecedf0");
                gvMyOrgs.Attributes.Add("bordercolor", "#999999");
                gvMyOrgs.CssClass = "myOrgsGView";
                gvMyOrgs.ShowHeader = true;
                gvMyOrgs.HeaderStyle.CssClass = "gview_head";
                //Record ID
                BoundField orgID = new BoundField();
                orgID.DataField = "id";
                orgID.HeaderText = "ID";
                orgID.SortExpression = "id";
                orgID.HeaderStyle.CssClass = "gview_center gview_head";
                orgID.ItemStyle.Width = new Unit(50, UnitType.Pixel);
                orgID.ItemStyle.CssClass = "gview_center gview_row";
                //Organization Name
                BoundField orgName = new BoundField();
                orgName.DataField = "orgName";
                orgName.HeaderText = "Organization";
                orgID.SortExpression = "orgName";
                orgName.HeaderStyle.CssClass = "gview_left gview_head";
                orgName.ItemStyle.Width = new Unit(300, UnitType.Pixel);
                orgName.ItemStyle.CssClass = "gview_left gview_row";

                //Location (City : State)
                BoundField cs = new BoundField();
                cs.DataField = "cs";
                cs.HeaderText = "Location";
                cs.HeaderStyle.CssClass = "gview_left gview_head";
                cs.ItemStyle.Width = new Unit(150, UnitType.Pixel);
                cs.ItemStyle.CssClass = "gview_left gview_row";
                //Employee's Role
                BoundField title = new BoundField();
                title.DataField = "EmpRole";
                title.HeaderText = "Employee Role";
                title.HeaderStyle.CssClass = "gview_left gview_head";
                title.ItemStyle.Width = new Unit(200, UnitType.Pixel);
                title.ItemStyle.CssClass = "gview_left gview_row";

                BoundField hrs = new BoundField();
                hrs.DataField = "hrsText";
                hrs.HeaderText = "Time";
                hrs.HeaderStyle.CssClass = "gview_left gview_head";
                hrs.ItemStyle.Width = new Unit(75, UnitType.Pixel);
                hrs.ItemStyle.CssClass = "gview_left gview_row";

                //Year Label
                //Add Columns
                //Bind Data
                //Add Gridview
                //Clear Parameters
                //Close Datareader
                //Close Connection


Question by:cbitsupport
LVL 13

Accepted Solution

agarwalrahul earned 250 total points
ID: 34913120

Assisted Solution

by:Anurag Agarwal
Anurag Agarwal earned 250 total points
ID: 34914758
hello !!

just check this tutorial for your help its very easy to understand


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