Questions on UI for WPF Forum

2 answers

401 views

How to restrict user to entering hexadecimal value

I'd like to be able to use a masked input control to allow the user to enter a hexadecimal number representing a color value (ARGB) e.g. #FF445566 or 0x445566. Is there some way I can use one of the mask controls to achieve this?

Thanks
Pete

MaskedInput (Numeric, DateTime, Text, Currency)

answered on 06 Jul 2020

1 answer

527 views

Add distinct values to column filter

I know that it is possible to remove distinct values from the filters, as described in this article: https://docs.telerik.com/devtools/wpf/controls/radgridview/filtering/how-to/howto-display-all-distinct-values

But I want to add distinct values to the column filter. The use case would be when the user is creating a favorite for a specific set of filters. When the user comes back later to the list, it may not contain the values that the favorite filter had specified at that moment. But the user would like to still be able to see what the filters for the favorite looks like.

Is it possible to add distinct values to a column filter, without creating a custom filter editor?

GridView

answered on 06 Jul 2020

1 answer

156 views

Debugging Radgrid after applying filter

Hello,

I've got a problem with the control.
After a while after applying a filter, I get SQL & Entity Exception.
Now I would like to debug it and see where exactly is the issue.
I can't look into it selecting the event.

How can I do it?

Regards

GridView

answered on 06 Jul 2020

2 answers

195 views

Connection cap in middle

Hi,

Is it possible to make a connection with a cap in the middle? I want to obtain an connection without caps at the start and end but with an arrow in the middle only.

Like this:

------->-------

How can that be done? Thank you for your help!

Diagram

answered on 03 Jul 2020

7 answers

574 views

Max number of items in filter list

I am using the 2011.2 version of Telerik.
We are using a rad grid view populated from a list of items about 5k or so long. When we hit the filter button the filter menu pops up, but it only has about half of the items available. Specifically, it sorts by string name (removing redundancies), only items up to those starting with the letter "M" are shown, where as I know that there are items all the way to "Z".

My question is this, is there a maximum number of items displayed in the filter's list? And if so, can we set the value higher?

Thanks,

Eli

GridView

answered on 03 Jul 2020

1 answer

382 views

Textbox in toolbar

Having an issue where I have put a textbox in a toolbar.

The textbox Text is bound to a property of a Viewmodel but the setter does not get exercised.

it seems as though focus is never lost from the textbox even if the next item does receive focus.

I would have sworn I have used this setup before without issue.

I pulled the code into a simpler project just to verify I was not crazy and it acted the same.

if I pull the textbox out of the toolbar it works fine.

It must be something stupid I am doing. but i cant see it. What am I doing wrong.

Any help would be appreciated

<telerik:RadToolBarTray Width="400" >
<telerik:RadToolBar >
<TextBox Text="{Binding Main.Cali ,Mode=TwoWay}" Width="100" />
</telerik:RadToolBar>
</telerik:RadToolBarTray>

Thanks

Dave.

ToolBar

answered on 03 Jul 2020

0 answers

152 views

RadCombobox.SelectedItemText returns null

Telerik.Windows.Controls.RadCombobox.SelectedItemText returns null after screen reloads. I am able to read the Selected Item by using Visual UIA Verify. But, was unable to read it through automation code using TestStack.White framework. Below is the RadComboBox details from xaml page

<telerik:RadComboBox x:Name="ComboBox1"
Style="{StaticResource styleRadComboBoxTransparent}"
ItemsSource="{Binding FitAlgorithms}"
SelectedItem="{Binding SelectedBeadPlex.CurveFitData.FitAlgorithm, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
IsEnabled="{Binding EditEnabled}"
Margin="0,5,0,0"
>
telerik:RadComboBox.ItemTemplate

</telerik:RadComboBox.ItemTemplate>

But,
ComboBox1.SelectedItemText returns null in the Automation code. Please share your suggestions.
Thanks.

ComboBox

asked on 03 Jul 2020

2 answers

758 views

DragDropManager OnDrop exception and fire twice



public PanelAssociation(DateTime Date)

{

date = Date;

InitializeComponent();

Day.Text = date.ToShortDateString();

DragDropManager.AddDropHandler(ListExtern, OnDrop);

DragDropManager.AddDragOverHandler(ListExtern, OnDragOver);

}

private void OnDrop(object sender, Telerik.Windows.DragDrop.DragEventArgs e)

{

var draggedItem = ((DataObject)e.Data).GetData("DragData");

var droppedItem = (e.OriginalSource as FrameworkElement).ParentOfType<RadTreeViewItem>();

PeopleModel.PeopleDetail people = draggedItem as PeopleModel.PeopleDetail;

OrderModel.OrderHead head = droppedItem.Item as OrderModel.OrderHead;

//create program

OrderModel.OrderService.CreateProgramByID(head, date, people.id);

}

private void OnDragOver(object sender, Telerik.Windows.DragDrop.DragEventArgs e)

{

var draggedItem = DragDropPayloadManager.GetDataFromObject(e.Data, "DragData");

var droppedItem = (e.OriginalSource as FrameworkElement).ParentOfType<RadTreeViewItem>();

//remove all selections

(sender as RadTreeView).SelectedItem = null;

//select just droppeditem

if (draggedItem is PeopleModel.PeopleDetail)

{

droppedItem.IsSelected = true;

}

else

{

e.Effects = DragDropEffects.None;

}

e.Handled = true;

}

Hi, i have a simple RadListBox to RadTreeView drag and drop, if i run, the event onDrop is called twice, if i debug, at the end of first ondrop return me an exception:
DragEventArgs.cs not found

i post my code:

DragAndDrop

answered on 03 Jul 2020

1 answer

279 views

[Solved] Combining ShowLabels and ClipToPlotArea

I'm showing two charts that are stacked vertically and have the same x-axis values. So I set ShowLabels to False for the top chart. However, now the points do not extend beyond the PlotArea on the right side even with ClipToPlotArea set to False. I have tried all sorts of margin and padding settings but I have not been able to add any extra space between the PlotArea and the right edge of the Chart. Suggestions?

ChartView

answered on 02 Jul 2020

2 answers

463 views

MaskedTextInput: Prevent entering text with newlines

How can I prevent the user from entering or pasting text that contains newlines in a RadMaskedTextInput. The user should also not be able to enter a newline using Ctrl+Return or Shift+Return or Alt+Return.

Setting the `AcceptsReturn` property to `false` has no effect at all. And its documentation states

> "Gets or sets a value indicating whether newline is accepted when the mask supports multiline."

Unfortunately the docs fail to mention how to set set a mask that prevents multiline.

MaskedInput (Numeric, DateTime, Text, Currency)