RadGrid: dynamically building a grid and adding a hierarchy with declarative relations row?[Answered] RSS

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  sholdorf

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  RadGrid: dynamically building a grid and adding a hierarchy with declarative relations row?

  Apr 25, 2010 08:04 PM|sholdorf|LINK

  I have searched the internet and can't find out what my final problem is. What I have is RadGrid and I am creating a sub-column that is a bound column. Now, when I select the icon to open the sub-column the relation field's bound column appearing but even though I am binding a List<> to it I get the message: No child records to display. Below is the code so if anyone can help with my final problem that would be great!

   

  public partial class _Default : System.Web.UI.Page

  {

  protected RadGrid grid;

  protected static List<TestListItem> list = new List<TestListItem>();

  protected static List<TestListItem2> list2 = new List<TestListItem2>();

  override protected void OnInit(EventArgs e)

  {

  DefineGridStructure();

  base.OnInit(e);

  }

  private void DefineGridStructure()

  {

  this.grid = new RadGrid();

  this.grid.AutoGenerateColumns = false;

  this.grid.NeedDataSource += new GridNeedDataSourceEventHandler(OnNeedDataSource);

  this.grid.ItemDataBound += new GridItemEventHandler(grid_ItemDataBound);

  this.grid.DetailTableDataBind += new GridDetailTableDataBindEventHandler(grid_DetailTableDataBind);

  this.grid.AllowMultiRowEdit = true;

  this.grid.AllowPaging = true;

  this.grid.AllowSorting = true;

  this.grid.Width = 700;

  //other columns definitions ----------------------------

  string gridEditColumnLinkName = "Action Column";

  GridEditCommandColumn gridEditColumn = new GridEditCommandColumn();

  gridEditColumn.ButtonType = GridButtonColumnType.LinkButton;

  gridEditColumn.EditText = "Edit";

  gridEditColumn.UpdateText = "Save";

  gridEditColumn.CancelText = "Cancel";

  gridEditColumn.UniqueName = "ActionButton";

  gridEditColumn.HeaderText = gridEditColumnLinkName;

  gridEditColumn.HeaderStyle.Width = 50;

  string boundColumnName1 = "Column 1";

  GridBoundColumn boundColumn1 = new GridBoundColumn();

  boundColumn1.DataField = "A";

  boundColumn1.UniqueName = "Column1";

  boundColumn1.HeaderText = boundColumnName1;

  boundColumn1.HeaderStyle.Width = 300;

  string boundColumnName2 = "Column 2";

  GridBoundColumn boundColumn2 = new GridBoundColumn();

  boundColumn2.DataField = "B";

  boundColumn2.UniqueName = "Column2";

  boundColumn2.HeaderText = boundColumnName2;

  boundColumn2.HeaderStyle.Width = 300;

  string boundColumnName3 = "Column 3";

  GridBoundColumn boundColumn3 = new GridBoundColumn();

  boundColumn3.DataField = "C";

  boundColumn3.UniqueName = "Column3";

  boundColumn3.HeaderText = boundColumnName3;

  boundColumn3.HeaderStyle.Width = 300;

  string dropdownColumnName = "Dropdown Column2";

  GridBoundColumn dropdownColumn = new GridBoundColumn();

  dropdownColumn.UniqueName = "Column4";

  dropdownColumn.DataField = "D";

  dropdownColumn.HeaderText = dropdownColumnName;

  dropdownColumn.HeaderStyle.Width = 300;

  //Detail table - (II in hierarchy level)

  GridTableView tableView = new GridTableView(this.grid);

  tableView.Width = Unit.Percentage(100);

  tableView.DataKeyNames = new string[1] { "A1" };

  GridRelationFields relationFields = new GridRelationFields();

  relationFields.MasterKeyField = "A";

  relationFields.DetailKeyField = "A1";

  tableView.ParentTableRelation.Add(relationFields);

  grid.MasterTableView.DetailTables.Add(tableView);

  //Add columns

  GridBoundColumn boundColumnr = new GridBoundColumn();

  boundColumnr.DataField = "A1";

  boundColumnr.HeaderText = "A1";

  tableView.Columns.Add(boundColumnr);

  this.grid.MasterTableView.DataKeyNames = new string[] { "A" };

  this.grid.MasterTableView.Columns.Add(gridEditColumn);

  this.grid.MasterTableView.Columns.Add(boundColumn1);

  this.grid.MasterTableView.Columns.Add(boundColumn2);

  this.grid.MasterTableView.Columns.Add(boundColumn3);

  this.grid.MasterTableView.Columns.Add(dropdownColumn);

  this.grid.MasterTableView.EditMode = GridEditMode.InPlace;

  grid.PageSize = 5;

  grid.ClientSettings.Scrolling.ScrollHeight = 230;

  grid.ClientSettings.Scrolling.ScrollWidth = 750;

  grid.ClientSettings.EnableClientKeyValues = true;

  this.PlaceHolder1.Controls.Add(grid);

  }

  void grid_DetailTableDataBind(object source, GridDetailTableDataBindEventArgs e)

  {

  e.DetailTableView.DataSource = list2;

  }

  void grid_ItemDataBound(object sender, GridItemEventArgs e)

  {

  if (e.Item is GridDataItem)

  {

  GridDataItem item = e.Item as GridDataItem;

  if (e.Item.IsInEditMode)

  {

  }

  }

  }

  protected void Page_Load(object sender, EventArgs e)

  {

  List<string> alist = new List<string>();

  list = new List<TestListItem>();

  list2 = new List<TestListItem2>();

  alist.Add("1");

  alist.Add("2");

  alist.Add("3");

  alist.Add("4");

  alist.Add("5");

  alist.Add("5");

  list.Add( new TestListItem( "ItemA 0", "ItemB a", "ItemC a", "ItemD a", alist ));

  list.Add( new TestListItem( "ItemA 1", "ItemB b", "ItemC b", "ItemD b", alist ));

  list.Add( new TestListItem( "ItemA 2", "ItemB c", "ItemC c", "ItemD c", alist ));

  list.Add( new TestListItem( "ItemA 3", "ItemB d", "ItemC d", "ItemD d", alist ));

  list.Add( new TestListItem( "ItemA 4", "ItemB e", "ItemC e", "ItemD e", alist ));

  list.Add( new TestListItem( "ItemA 5", "ItemB f", "ItemC f", "ItemD f", alist ));

  list2.Add (new TestListItem2("SubItem A"));

  list2.Add(new TestListItem2("SubItem B"));

  list2.Add(new TestListItem2("SubItem C"));

  list2.Add(new TestListItem2("SubItem D"));

  list2.Add(new TestListItem2("SubItem E"));

  list2.Add(new TestListItem2("SubItem F"));

  }

  void OnNeedDataSource(object source, GridNeedDataSourceEventArgs e)

  {

  if (!e.IsFromDetailTable)

  {

  grid.DataSource = list;

  }

  else

  {

  //grid.MasterTableView.DataSource = list2;

  }

  }

  public class TestListItem

  {

  private string _a;

  private string _b;

  private string _c;

  private string _d;

  List<string> _aList;

  public TestListItem( string a, string b, string c, string d,List<string> aList )

  {

  this._a = a;

  this._b = b;

  this._c = c;

  this._d = d;

  this._aList = aList;

  }

  public string A

  {

  get

  {

  return this._a;

  }

  set

  {

  this._a = value;

  }

  }

  public string B

  {

  get

  {

  return this._b;

  }

  set

  {

  this._b = value;

  }

  }

  public string C

  {

  get

  {

  return this._c;

  }

  set

  {

  this._c = value;

  }

  }

  public string D

  {

  get

  {

  return this._d;

  }

  set

  {

  this._d = value;

  }

  }

  public List<string> AList

  {

  get

  {

  return this._aList;

  }

  set

  {

  this._aList = value;

  }

  }

  }

  public class TestListItem2

  {

  private string _a1;

  public TestListItem2(string a1)

  {

  this._a1 = a1;

  }

  public string A1

  {

  get

  {

  return this._a1;

  }

  set

  {

  this._a1 = value;

  }

  }

  }

  }

  
   

• • Reply
  bloggernext

  Participant

  1780 Points

  470 Posts

  Re: RadGrid: dynamically building a grid and adding a hierarchy with declarative relations row?

  May 12, 2010 04:01 AM|bloggernext|LINK

  dude post it in their forum http://www.telerik.com/community/forums/aspnet-ajax/grid.aspx
  the response is always quick.

   

• • Reply
  bloggernext

  Participant

  1780 Points

  470 Posts

  Re: RadGrid: dynamically building a grid and adding a hierarchy with declarative relations row?

  May 12, 2010 04:01 AM|bloggernext|LINK

  dude post it in their forum http://www.telerik.com/community/forums/aspnet-ajax/grid.aspx
  their response is always quick.