Замораживание (блокировка) столбцов в SPGridView

Я видел много примеров с замораживанием колонок в SPGridView, но понятия не имею, почему ни один из них у меня не работает. Я имею в виду - заморозки нет.

Буду благодарен за просмотр моего кода.

Ниже приведены фрагменты кода, готовые к запуску. Он должен работать в IE 8+ (другие браузеры не имеют значения).

Я дам 100 баллов за решение, которое сработает.

стиль

/* Locks the left column */

td.locked, th.locked {

font-size: 7pt;

text-align: left;

background-color:inherit;

color:Black;

position:relative;

cursor: default;

left: expression(document.getElementById("div-datagrid").scrollLeft-2); /*IE5+ only*/

}

/* Locks table header */

th {

font-size: 7pt;

font-weight: bold;

text-align: center;

background-color: navy;

color: white;

height:15pt;

border-right: 1px solid silver;

position:relative;

cursor: default;

top: expression(document.getElementById("div-datagrid").scrollTop-2); /*IE5+ only*/

z-index: 10;
}


/*
div#div-datagrid {
width: 420px;
height: 200px;
overflow: auto;
scrollbar-base-color:#ffeaff;
}
*/
/*
.container 
{
    overflow:auto;
    margin-left:10px;
    height:300px; 
    width:710px;
 }
*/

div#div-datagrid {
width: 500px;
height: 300px;
overflow: auto;
scrollbar-base-color:#ffeaff;
}

/* Locks the left column */
td.locked, th.locked {
font-size: 14px;
font-weight: bold;
text-align: center;
background-color: navy;
color: white;
border-right: 1px solid silver;
position:relative;
cursor: default;
/*IE5+ only*/
left: expression(document.getElementById("div-datagrid").scrollLeft-2);
}

/* Locks table header */
th {
font-size: 14px;
font-weight: bold;
text-align: center;
background-color: navy;
color: white;
border-right: 1px solid silver;
position:relative;
cursor: default;
/*IE5+ only*/
top: expression(document.getElementById("div-datagrid").scrollTop-2);
z-index: 10;
}

/* Keeps the header as the top most item. Important for top left item*/
th.locked {z-index: 99;}

/* DataGrid Item and AlternatingItem Style*/
.GridRow {font-size: 10pt; color: black; font-family: Arial;
             background-color:#ffffff; height:35px;}
.GridAltRow {font-size: 10pt; color: black; font-family: Arial;
             background-color:#eeeeee; height:35px;}

код программной части:

using System;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.IO;
using System.Web;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;

    namespace MySPGridView.VisualWebPart1
    {
        [ToolboxItemAttribute(false)]
        public class VisualWebPart1 : WebPart
        {
            // Visual Studio might automatically update this path when you change the Visual Web Part project item.
            private const string _ascxPath = @"~/_CONTROLTEMPLATES/FirstSPGridView/SPGridViewWebPartTest/VisualWebPart1UserControl.ascx";

            SPGridView _grid;


            private ObjectDataSource gridDS;




            protected override void CreateChildControls()
            {

                base.CreateChildControls();
                try
                {
                    SPSite mySite = SPContext.Current.Site;
                    SPWeb myWeb = mySite.OpenWeb();

                    //Using RunWithElevatedPrivileges

                    SPSecurity.RunWithElevatedPrivileges(delegate()
                    {
                        using (SPSite siteCollection = new SPSite(mySite.ID))
                        {
                            using (SPWeb web = siteCollection.OpenWeb(myWeb.ID))
                            {
                                const string GRIDID = "grid";
                                const string DATASOURCEID = "gridDS";

                                gridDS = new ObjectDataSource();
                                gridDS.ID = DATASOURCEID;
                                gridDS.SelectMethod = "SelectData";
                                gridDS.TypeName = this.GetType().AssemblyQualifiedName;
                                gridDS.ObjectCreating += new ObjectDataSourceObjectEventHandler(gridDS_ObjectCreating);

                                this.Controls.Add(gridDS);

                                _grid = new SPGridView();
                                _grid.RowDataBound += GridView1_RowDataBound;
                                _grid.AutoGenerateColumns = false;
                                _grid.ID = GRIDID;
                                _grid.DataSourceID = gridDS.ID;
                                _grid.AutoGenerateColumns = false;

                                HtmlGenericControl div = new HtmlGenericControl("div");
                                div.Attributes.Add("id", "div-datagrid");

                                div.Controls.Add(_grid);
                                Controls.Add(div);


                            }
                        }
                    });
                }
                catch (Exception ex)
                {
                    throw new NotImplementedException();
                }


            }


            protected sealed override void LoadViewState(object savedState)
            {
                base.LoadViewState(savedState);

            }

            private void gridDS_ObjectCreating(object sender, ObjectDataSourceEventArgs e)
            {
                e.ObjectInstance = this;
            }

            protected override void OnPreRender(EventArgs e)
            {

                CssRegistration css = new CssRegistration();
                css.After = "corev4.css";

                css.Name = "CustomStyle.css";
                this.Controls.Add(css);
            }


            protected sealed override void Render(HtmlTextWriter writer)
            {
                try
                {
                    GenerateColumns();
                    _grid.DataBind();
                    LockColumns();
                    base.Render(writer);
                }
                catch (Exception e)
                {
                    throw new NotImplementedException();
                }
            }


            private void GenerateColumns()
            {

                BoundField clientNameColumn = new BoundField();
                clientNameColumn.HeaderText = "Client";
                clientNameColumn.DataField = "LastName";
                clientNameColumn.SortExpression = "LastName";
                _grid.Columns.Add(clientNameColumn);


                BoundField birthDayColumn = new BoundField();
                birthDayColumn.HeaderText = "BirthDate";
                birthDayColumn.DataField = "BirthDate";
                birthDayColumn.DataFormatString = "{0:d}";

                birthDayColumn.SortExpression = "BirthDate";
                _grid.Columns.Add(birthDayColumn);

                BoundField FrenchOccupationColumn = new BoundField();
                FrenchOccupationColumn.HeaderText = "FrenchOccupation";
                FrenchOccupationColumn.DataField = "FrenchOccupation";
                FrenchOccupationColumn.SortExpression = "FrenchOccupation";
                _grid.Columns.Add(FrenchOccupationColumn);

                BoundField HouseOwnerFlagColumn = new BoundField();
                HouseOwnerFlagColumn.HeaderText = "HouseOwnerFlag";
                HouseOwnerFlagColumn.DataField = "HouseOwnerFlag";
                HouseOwnerFlagColumn.SortExpression = "HouseOwnerFlag";
                _grid.Columns.Add(HouseOwnerFlagColumn);

                BoundField NumberCarsOwnedColumn = new BoundField();
                NumberCarsOwnedColumn.HeaderText = "NumberCarsOwned";
                NumberCarsOwnedColumn.DataField = "NumberCarsOwned";
                NumberCarsOwnedColumn.SortExpression = "NumberCarsOwned";
                _grid.Columns.Add(NumberCarsOwnedColumn);

                BoundField AddressLine1Column = new BoundField();
                AddressLine1Column.HeaderText = "AddressLine1";
                AddressLine1Column.DataField = "AddressLine1";
                AddressLine1Column.SortExpression = "AddressLine1";
                _grid.Columns.Add(AddressLine1Column);

                BoundField AddressLine2Column = new BoundField();
                AddressLine2Column.HeaderText = "AddressLine2";
                AddressLine2Column.DataField = "AddressLine2";
                AddressLine2Column.SortExpression = "AddressLine2";
                _grid.Columns.Add(AddressLine2Column);

                BoundField AddressLine3Column = new BoundField();
                AddressLine3Column.HeaderText = "AddressLine3";
                AddressLine3Column.DataField = "AddressLine3";
                AddressLine3Column.SortExpression = "AddressLine3";
                _grid.Columns.Add(AddressLine3Column);

                BoundField AddressLine4Column = new BoundField();
                AddressLine4Column.HeaderText = "AddressLine4";
                AddressLine4Column.DataField = "AddressLine4";
                AddressLine4Column.SortExpression = "AddressLine4";
                _grid.Columns.Add(AddressLine4Column);

                BoundField AddressLine5Column = new BoundField();
                AddressLine5Column.HeaderText = "AddressLine5";
                AddressLine5Column.DataField = "AddressLine5";
                AddressLine5Column.SortExpression = "AddressLine5";
                _grid.Columns.Add(AddressLine5Column);

                BoundField AddressLine6Column = new BoundField();
                AddressLine6Column.HeaderText = "AddressLine6";
                AddressLine6Column.DataField = "AddressLine6";
                AddressLine6Column.SortExpression = "AddressLine6";
                _grid.Columns.Add(AddressLine6Column);

                BoundField AddressLine7Column = new BoundField();
                AddressLine7Column.HeaderText = "AddressLine7";
                AddressLine7Column.DataField = "AddressLine7";
                AddressLine7Column.SortExpression = "AddressLine7";
                _grid.Columns.Add(AddressLine7Column);

                BoundField AddressLine8Column = new BoundField();
                AddressLine8Column.HeaderText = "AddressLine8";
                AddressLine8Column.DataField = "AddressLine8";
                AddressLine8Column.SortExpression = "AddressLine8";
                _grid.Columns.Add(AddressLine8Column);

                BoundField AddressLine9Column = new BoundField();
                AddressLine9Column.HeaderText = "AddressLine9";
                AddressLine9Column.DataField = "AddressLine9";
                AddressLine9Column.SortExpression = "AddressLine9";
                _grid.Columns.Add(AddressLine9Column);

                BoundField AddressLine10Column = new BoundField();
                AddressLine10Column.HeaderText = "AddressLine10";
                AddressLine10Column.DataField = "AddressLine10";
                AddressLine10Column.SortExpression = "AddressLine10";
                _grid.Columns.Add(AddressLine10Column);

                BoundField AddressLine11Column = new BoundField();
                AddressLine11Column.HeaderText = "AddressLine11";
                AddressLine11Column.DataField = "AddressLine11";
                AddressLine11Column.SortExpression = "AddressLine11";
                _grid.Columns.Add(AddressLine11Column);

                BoundField AddressLine12Column = new BoundField();
                AddressLine12Column.HeaderText = "AddressLine12";
                AddressLine12Column.DataField = "AddressLine12";
                AddressLine12Column.SortExpression = "AddressLine12";
                _grid.Columns.Add(AddressLine12Column);

                BoundField AddressLine13Column = new BoundField();
                AddressLine13Column.HeaderText = "AddressLine13";
                AddressLine13Column.DataField = "AddressLine13";
                AddressLine13Column.SortExpression = "AddressLine13";
                _grid.Columns.Add(AddressLine13Column);

                BoundField AddressLine14Column = new BoundField();
                AddressLine14Column.HeaderText = "AddressLine14";
                AddressLine14Column.DataField = "AddressLine14";
                AddressLine14Column.SortExpression = "AddressLine14";
                _grid.Columns.Add(AddressLine14Column);



            }

            private void LockColumns()
            {

                //_grid.Columns[0].HeaderStyle.CssClass = "FrozenHeader";
                //_grid.Columns[1].HeaderStyle.CssClass = "FrozenHeader";
                //_grid.Columns[2].HeaderStyle.CssClass = "FrozenHeader";
                //_grid.Columns[3].HeaderStyle.CssClass = "FrozenHeader";
                //_grid.Columns[4].HeaderStyle.CssClass = "FrozenHeader";

                //_grid.Columns[1].HeaderStyle.CssClass = "FrozenHeader";
                //_grid.Columns[1].HeaderStyle.CssClass = "FrozenCell";

                //_grid.HeaderRow.Cells[0].CssClass = "locked";

                //_grid.HeaderRow.Cells[1].CssClass = "locked";

                //_grid.HeaderRow.Cells[2].CssClass = "locked";

                foreach (GridViewRow row in _grid.Rows)
                {
                    //if (row.RowType == DataControlRowType.DataRow)
                    //{

                    //row.Cells[0].CssClass = "FrozenCell";
                    //row.Cells[1].CssClass = "FrozenCell";
                    //row.Cells[2].CssClass = "FrozenCell";
                    //row.Cells[3].CssClass = "FrozenCell";
                    //row.Cells[4].CssClass = "FrozenCell";

                    //row.Cells[0].CssClass = "locked";
                    //row.Cells[0].CssClass = "locked";

                    //row.Cells[1].CssClass = "locked";

                    //row.Cells[2].CssClass = "locked";
                    //}
                }


            }


            public DataTable SelectData()
            {
                #region hardcoded data
                //DataTable dataSource = new DataTable();

                //dataSource.Columns.Add("ID");
                //dataSource.Columns.Add("Name");
                //dataSource.Columns.Add("Region");
                //dataSource.Columns.Add("Total Sales");

                //dataSource.Rows.Add(1, "J. Smith", "Europe", 10000);
                //dataSource.Rows.Add(2, "J. Smith", "North America", 15000);
                //dataSource.Rows.Add(3, "J. Smith", "Asia", 5000);
                //dataSource.Rows.Add(4, "S. Jones", "Europe", 7000);
                //dataSource.Rows.Add(5, "S. Jones", "North America", 30000);
                //dataSource.Rows.Add(6, "S. Jones", "Asia", 8700);
                //dataSource.Rows.Add(7, "W. Nguyen", "Europe", 3000);
                //dataSource.Rows.Add(8, "W. Nguyen", "North America", 50000);
                //dataSource.Rows.Add(9, "W. Nguyen", "Asia", 25000);
                //return dataSource;

                #endregion
                var dataGet = new DataTable();
                SPSecurity.RunWithElevatedPrivileges(delegate()
                                                         {
                                                             using (
                                                                 var conn =
                                                                     new SqlConnection(
                                                                         "Data Source=localhost;Initial Catalog=AdventureWorksDW2008R2;Integrated Security=True")
                                                                 )
                                                             {
                                                                 var adapter = new SqlDataAdapter();
                                                                 //adapter.SelectCommand =
                                                                 //    new SqlCommand("Select TOP 100 LastName,Birthdate,FirstName FROM DimCustomer WHere firstName like 'A%'");
                                                                 //adapter.SelectCommand =
                                                                 //    new SqlCommand("Select TOP 20 LastName,Birthdate,'FirstName_1' as FirstName FROM DimCustomer WHere firstName like 'A%' UNION ALL Select TOP 20 LastName,Birthdate,'FirstName_2' as FirstName FROM DimCustomer WHere firstName like 'B%'");
                                                                 adapter.SelectCommand =
                                                                     new SqlCommand("Select TOP 20 LastName,Birthdate,'FirstName_1' as FirstName,FrenchOccupation,HouseOwnerFlag,NumberCarsOwned,AddressLine1,AddressLine2,Phone,DateFirstPurchase,CommuteDistance, 'adressssss3' as AddressLine3,'adressssss4' as AddressLine4,'adressssss5' as AddressLine5,'adressssss6' as AddressLine6,'adressssss7' as AddressLine7,'adressssss8' as AddressLine8,'adressssss9' as AddressLine9,'adressssss10' as AddressLine10,'adressssss11' as AddressLine11,'adressssss12' as AddressLine12,'adressssss13' as AddressLine13,'adressssss14' as AddressLine14   FROM DimCustomer WHere firstName like 'A%' UNION ALL Select TOP 20 LastName,Birthdate,'FirstName_2' as FirstName,FrenchOccupation,HouseOwnerFlag,NumberCarsOwned,AddressLine1,AddressLine2,Phone,DateFirstPurchase,CommuteDistance, 'adressssss3' as AddressLine3,'adressssss4' as AddressLine4,'adressssss5' as AddressLine5,'adressssss6' as AddressLine6,'adressssss7' as AddressLine7,'adressssss8' as AddressLine8,'adressssss9' as AddressLine9,'adressssss10' as AddressLine10,'adressssss11' as AddressLine11,'adressssss12' as AddressLine12,'adressssss13' as AddressLine13,'adressssss14' as AddressLine14  FROM DimCustomer WHere firstName like 'B%'");
                                                                 adapter.SelectCommand.Connection = conn;
                                                                 conn.Open();

                                                                 adapter.Fill(dataGet);

                                                             }
                                                         });

                dataGet.Columns["Birthdate"].DataType = System.Type.GetType("System.DateTime");

                return dataGet;


            }

            protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
            {
                if (e.Row.RowType == DataControlRowType.DataRow)
                {
                    if (e.Row.Cells.Count > 1)
                    {

                        _grid.HeaderRow.Cells[0].CssClass = "locked";
                        e.Row.Cells[0].CssClass = "locked";
                    }
                }
            }
        }
    }

вид:

<%@ Assembly Name="$SharePoint.Project.AssemblyFullName$" %>
<%@ Assembly Name="Microsoft.Web.CommandUI, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls"
    Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="asp" Namespace="System.Web.UI" Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %>
<%@ Import Namespace="Microsoft.SharePoint" %>
<%@ Register TagPrefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages"
    Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="VisualWebPart1UserControl.ascx.cs"
    Inherits="FirstSPGridView.VisualWebPart1.VisualWebPart1UserControl" %>
<%@ Register TagPrefix="MySPGridView" Namespace="MySPGridView" %>

я вывожу у меня есть

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">