or
System.Windows.Data Error: 4 : Cannot find source for binding with reference 'ElementName=PART_DropDownButton'. BindingExpression:Path=IsMouseOver; DataItem=null; target element is 'ButtonChrome' (Name='ButtonChrome'); target property is 'RenderMouseOver' (type 'Boolean')
<telerik:RadComboBox Grid.Column="1" IsEditable="True" TextSearchMode="StartsWith" telerik:TextSearch.TextPath="Description" IsFilteringEnabled="True" OpenDropDownOnFocus="True" ItemsSource="{Binding Fields}" SelectedItem="{Binding SelectedField.Field, Mode=TwoWay}"> <telerik:RadComboBox.ItemsPanel> <ItemsPanelTemplate> <VirtualizingStackPanel /> </ItemsPanelTemplate> </telerik:RadComboBox.ItemsPanel></telerik:RadComboBox>ChartArea3.DefaultView.ChartArea.DataSeries.Clear()
For Each itm As ItemSumm In itemsList
Dim series As New DataSeries()
series.Definition = New LineSeriesDefinition()
series.Definition.ShowItemLabels = True
series.Definition.ShowItemToolTips = True
series.Add(New DataPoint() With {.YValue = Math.Abs(itm.Amount), .XCategory = Format(itm.aptDate, "dd-MMM"), .LegendLabel = itm.aptCode})
series.LegendLabel = itm.aptCode
series.Definition.ItemLabelFormat = "#Y{C2}"
series.Definition.ItemToolTipFormat = "#LEGENDLABEL" & Chr(13) & "#Y{C2}" & Chr(13) & "#XCAT"
ChartArea3.DefaultView.ChartArea.DataSeries.Add(series)
Next
Dim zoomSettings As New ZoomScrollSettings()
ChartArea3.SamplingSettings.SamplingThreshold = 10
zoomSettings.MinZoomRange = 10
zoomSettings.RangeEnd = 30
zoomSettings.RangeStart = 20
zoomSettings.ScrollMode = ScrollMode.ScrollAndZoom
ChartArea3.DefaultView.ChartArea.ZoomScrollSettingsX = zoomSettings
GridViewCheckBoxColumn tempCheckBoxColumn; foreach (PermissionValue permissionValue in employeeRecords.FirstOrDefault().RolePermission) { tempCheckBoxColumn = new GridViewCheckBoxColumn() { Header = permissionValue.PermissionTypeDescription , UniqueName = permissionValue.PermissionTypeDescription , DataMemberBinding = new Binding("RolePermission[" + i + "].Value") { Mode = BindingMode.TwoWay } , DataType = typeof(bool) }; tempDataColumn.IsReadOnly = false; this.grid.Columns.Add(tempCheckBoxColumn); i++; }