I am trying to build a role access control, and have a grid with roles and bunch of checkboxes on each row. But, when I try to check multiple checkboxes, my previous check goes away. I want to be able to check multiple boxes and then hit save below.
I think I am missing a property of a grid, so here's the entire code.Thanks!
001.using System.ComponentModel;002.using System.Drawing;003.using System.Windows.Forms;004.using Telerik.WinControls.UI;005. 006.namespace TelerikWinFormsApp1007.{008.    public partial class RadForm1 : RadForm009.    {010.        public RadForm1()011.        {012.            var gridViewTextBoxColumn1 = new GridViewTextBoxColumn();013.            var gridViewCheckBoxColumn1 = new GridViewCheckBoxColumn();014.            var gridViewCheckBoxColumn2 = new GridViewCheckBoxColumn();015.            var gridViewCheckBoxColumn3 = new GridViewCheckBoxColumn();016.            var gridViewCheckBoxColumn4 = new GridViewCheckBoxColumn();017.            var tableViewDefinition1 = new TableViewDefinition();018.            radGridView1 = new RadGridView();019.            ((ISupportInitialize) (radGridView1)).BeginInit();020.            ((ISupportInitialize) (radGridView1.MasterTemplate)).BeginInit();021.            ((ISupportInitialize) (this)).BeginInit();022.            SuspendLayout();023.            // 024.            // radGridView1025.            // 026.            radGridView1.Dock = DockStyle.Fill;027.            radGridView1.Location = new Point(0, 0);028.            // 029.            // 030.            // 031.            radGridView1.MasterTemplate.AllowAddNewRow = false;032.            radGridView1.MasterTemplate.AllowDeleteRow = false;033. 034.            gridViewTextBoxColumn1.FieldName = "Role";035.            gridViewTextBoxColumn1.HeaderText = "Role";036.            gridViewTextBoxColumn1.Name = "Role";037.            gridViewTextBoxColumn1.Width = 30;038. 039.            gridViewCheckBoxColumn1.FieldName = "Create";040.            gridViewCheckBoxColumn1.HeaderText = "Create";041.            gridViewCheckBoxColumn1.Name = "Create";042.            gridViewCheckBoxColumn1.Width = 56;043. 044.            gridViewCheckBoxColumn2.FieldName = "Read";045.            gridViewCheckBoxColumn2.HeaderText = "Read";046.            gridViewCheckBoxColumn2.Name = "Read";047.            gridViewCheckBoxColumn2.Width = 48;048. 049.            gridViewCheckBoxColumn3.FieldName = "Update";050.            gridViewCheckBoxColumn3.HeaderText = "Update";051.            gridViewCheckBoxColumn3.Name = "Update";052.            gridViewCheckBoxColumn3.Width = 60;053. 054.            gridViewCheckBoxColumn4.FieldName = "Delete";055.            gridViewCheckBoxColumn4.HeaderText = "Delete";056.            gridViewCheckBoxColumn4.Name = "Delete";057.            gridViewCheckBoxColumn4.Width = 55;058. 059.            radGridView1.MasterTemplate.Columns.AddRange(new GridViewDataColumn[] {060.            gridViewTextBoxColumn1,061.            gridViewCheckBoxColumn1,062.            gridViewCheckBoxColumn2,063.            gridViewCheckBoxColumn3,064.            gridViewCheckBoxColumn4});065. 066.            radGridView1.MasterTemplate.ViewDefinition = tableViewDefinition1;067.            radGridView1.Name = "radGridView1";068.            radGridView1.ShowGroupPanel = false;069.            radGridView1.Size = new Size(292, 270);070.            radGridView1.TabIndex = 0;071.            radGridView1.Text = "radGridView1";072.            // 073.            // RadForm1074.            // 075.            AutoScaleDimensions = new SizeF(6F, 13F);076.            AutoScaleMode = AutoScaleMode.Font;077.            ClientSize = new Size(292, 270);078.            Controls.Add(radGridView1);079.            Name = "RadForm1";080.            // 081.            // 082.            // 083.            RootElement.ApplyShapeToControl = true;084.            Text = "RadForm1";085.            ((ISupportInitialize) (radGridView1.MasterTemplate)).EndInit();086.            ((ISupportInitialize) (radGridView1)).EndInit();087.            ((ISupportInitialize) (this)).EndInit();088.            ResumeLayout(false);089. 090. 091.            radGridView1.DataSource = new[]092.            {093.                new { Role = "Admin", Create = true, Read = true, Update = true, Delete = true },094.                new { Role = "Reader", Create = false, Read = true, Update = false, Delete = false },095.                new { Role = "Editor", Create = false, Read = true, Update = true, Delete = false },096.                new { Role = "Writer", Create = true, Read = true, Update = true, Delete = false }097.            };098.        }099.    }100.}