'Declaration Public Property DataFilter As Infragistics.Win.IEditorDataFilter
public Infragistics.Win.IEditorDataFilter DataFilter {get; set;}
Private Class ColorPickerEditorDataFilter Implements IEditorDataFilter Public Function Convert(ByVal convertArgs As Infragistics.Win.EditorDataFilterConvertArgs) As Object Implements Infragistics.Win.IEditorDataFilter.Convert If convertArgs.Direction = ConversionDirection.OwnerToEditor Then convertArgs.Handled = True If Not (convertArgs.Value Is Nothing) And convertArgs.Value.GetType() Is GetType(GenericObjectHolder) Then Return CType(convertArgs.Value, GenericObjectHolder).Obj Else convertArgs.IsValid = False Return Nothing End If ElseIf convertArgs.Direction = ConversionDirection.EditorToOwner Then convertArgs.Handled = True Return New GenericObjectHolder(convertArgs.Value) ElseIf convertArgs.Direction = ConversionDirection.EditorToDisplay Then convertArgs.Handled = True If convertArgs.Value Is Nothing Or convertArgs.Value Is DBNull.Value Then Return "" If convertArgs.Value.GetType() Is GetType(Color) Then Return CType(convertArgs.Value, Color).Name + "ish" Else convertArgs.IsValid = False Return Nothing End If ElseIf convertArgs.Direction = ConversionDirection.DisplayToEditor Then convertArgs.Handled = True Dim strVal As String = convertArgs.Value If strVal <> Nothing And strVal.EndsWith("ish") Then Return Color.FromName(strVal.Substring(0, strVal.Length - "ish".Length)) Else convertArgs.IsValid = False Return Nothing End If Else Throw New Exception("Something is wrong.") End If End Function End Class Private Class GenericObjectHolder Public Obj As Object = Nothing Public Sub New(ByVal obj As Object) Me.Obj = obj End Sub End Class Public Sub New() MyBase.New() 'This call is required by the Windows Form Designer. InitializeComponent() 'Add any initialization after the InitializeComponent() call InitGrid() End Sub Private Sub InitGrid() ' create data table Dim dataSet As New DataSet() Dim dataTable As New DataTable() dataSet.Tables.Add(dataTable) Dim dataColumn As New DataColumn("id", GetType(Integer)) dataColumn.AutoIncrement = True dataTable.Columns.Add(dataColumn) dataTable.Columns.Add(New DataColumn("ColorPickerDF", GetType(GenericObjectHolder))) Me.UltraGrid1.DataSource = dataSet ' set data filter on editor Dim editor As EmbeddableEditorBase editor = New ColorPickerEditor() editor.DataFilter = New ColorPickerEditorDataFilter() Me.UltraGrid1.DisplayLayout.Bands(0).Columns("ColorPickerDF").Editor = editor ' add rows Dim row As DataRow row = dataTable.NewRow() row("ColorPickerDF") = New GenericObjectHolder(Color.Red) dataTable.Rows.Add(row) row = dataTable.NewRow() row("ColorPickerDF") = New GenericObjectHolder(Color.Green) dataTable.Rows.Add(row) End Sub
private class ColorPickerEditorDataFilter : IEditorDataFilter { public virtual object Convert(EditorDataFilterConvertArgs convertArgs) { if(convertArgs.Direction==ConversionDirection.OwnerToEditor) { convertArgs.Handled = true; if(convertArgs.Value!=null && convertArgs.Value.GetType()==typeof(GenericObjectHolder)) return ((GenericObjectHolder)convertArgs.Value).Obj; else { convertArgs.IsValid = false; return null; } } else if(convertArgs.Direction==ConversionDirection.EditorToOwner) { convertArgs.Handled = true; return new GenericObjectHolder(convertArgs.Value); } else if(convertArgs.Direction==ConversionDirection.EditorToDisplay) { convertArgs.Handled = true; if(convertArgs.Value==null || convertArgs.Value==DBNull.Value) return ""; if(convertArgs.Value is Color) return ((Color)convertArgs.Value).Name + "ish"; else { convertArgs.IsValid = false; return null; } } else if(convertArgs.Direction==ConversionDirection.DisplayToEditor) { convertArgs.Handled = true; string strVal = convertArgs.Value as string; if(strVal!=null && strVal.EndsWith("ish")) return Color.FromName( strVal.Substring(0, strVal.Length - "ish".Length) ); else { convertArgs.IsValid = false; return null; } } else throw new Exception("Something is wrong."); } } private class GenericObjectHolder { public object Obj = null; public GenericObjectHolder(object obj) { this.Obj = obj; } } public Form1() { // Required for Windows Form Designer support InitializeComponent(); // TODO: Add any constructor code after InitializeComponent call InitGrid(); } private void InitGrid() { // create data table DataSet dataSet = new DataSet(); DataTable dataTable = new DataTable(); dataSet.Tables.Add(dataTable); DataColumn dataColumn = new DataColumn("id", typeof(int)); dataColumn.AutoIncrement = true; dataTable.Columns.Add(dataColumn); dataTable.Columns.Add( new DataColumn("ColorPickerDF", typeof(GenericObjectHolder)) ); this.ultraGrid1.DataSource = dataSet; // set data filter on editor EmbeddableEditorBase editor = new ColorPickerEditor(); editor.DataFilter = new ColorPickerEditorDataFilter(); this.ultraGrid1.DisplayLayout.Bands[0].Columns["ColorPickerDF"].Editor = editor; // add rows DataRow row; row = dataTable.NewRow(); row["ColorPickerDF"] = new GenericObjectHolder(Color.Red); dataTable.Rows.Add(row); row = dataTable.NewRow(); row["ColorPickerDF"] = new GenericObjectHolder(Color.Green); dataTable.Rows.Add(row); }
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2