Thread ID: |
Created: |
Updated: |
Platform: |
Replies: |
| 145420 | Jun 20,2019 02:34 PM UTC | Jul 1,2019 08:40 AM UTC | WPF | 8 |
|
Tags: SfDataGrid |
|
this.Grid.CellRenderers.Remove("MultiColumnDropDown");
this.Grid.CellRenderers.Add("MultiColumnDropDown", new CustomMultiColumnDropDownRenderer());
public class CustomMultiColumnDropDownRenderer: GridCellMultiColumnDropDownRenderer
{
protected override SfMultiColumnDropDownControl OnCreateEditUIElement()
{
return new CustomMultiColumnDropDownControl(this.DataGrid);
}
protected override bool ShouldGridTryToHandleKeyDown(KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
var multiDropDown = (this.CurrentCellRendererElement as CustomMultiColumnDropDownControl);
multiDropDown.AddItem(multiDropDown);
}
return base.ShouldGridTryToHandleKeyDown(e);
}
}
public class CustomMultiColumnDropDownControl : SfMultiColumnDropDownControl
{
SfDataGrid DataGrid;
public CustomMultiColumnDropDownControl(SfDataGrid dataGrid) : base()
{
DataGrid = dataGrid;
}
public override void OnApplyTemplate()
{
Editor = GetTemplateChild("PART_TextBox") as TextBox;
if (Editor != null)
Editor.LostFocus += Editor_LostFocus;
base.OnApplyTemplate();
}
private void Editor_LostFocus(object sender, RoutedEventArgs e)
{
if (!string.IsNullOrEmpty(SearchText))
{
AddItem(this);
}
}
internal void AddItem(SfMultiColumnDropDownControl multiDropDown)
{
var textBox = multiDropDown.GetType().GetProperty("Editor", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance).GetValue(multiDropDown);
var newValue = textBox != null ? (textBox as TextBox).Text : null;
var underlyingItems = ((multiDropDown as CustomMultiColumnDropDownControl).DataGrid.DataContext as ViewModel).ProductList;
if (underlyingItems != null)
{
bool newRecord = underlyingItems.Any(x => x.Code == newValue.ToString());
if (!newRecord)
{
underlyingItems.Add(new ProductInfo() { Code = newValue.ToString(), ID = underlyingItems.Count + 1 });
multiDropDown.SelectedItem = underlyingItems.Last();
}
}
}
} |
|
public class CustomMultiColumnDropDownRenderer : GridCellMultiColumnDropDownRenderer
{
protected override SfMultiColumnDropDownControl OnCreateEditUIElement()
{
return newCustomMultiColumnDropDownControl(DataGrid);
}
public override voidOnInitializeDisplayElement(DataColumnBase dataColumn, TextBlock uiElement, object dataContext)
{
var gridColumn = dataColumn.GridColumn asGridMultiColumnDropDownList;
var itemsSource = gridColumn.ItemsSource asObservableCollection<ProductInfo>;
var record = dataContext as OrderInfo;
if (!(itemsSource.Any(info => info.Code == record.ProductCode)))
itemsSource.Add(new ProductInfo() { Code = record.ProductCode });
base.OnInitializeDisplayElement(dataColumn, uiElement, dataContext);
}
protected override boolShouldGridTryToHandleKeyDown(KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
var multiDropDown = (CurrentCellRendererElement asCustomMultiColumnDropDownControl);
multiDropDown.AddItem(multiDropDown);
}
returnbase.ShouldGridTryToHandleKeyDown(e);
}
} |
This post will be permanently deleted. Are you sure you want to continue?
Sorry, An error occured while processing your request. Please try again later.
This page will automatically be redirected to the sign-in page in 10 seconds.
You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.
