Questions on UI for WPF Forum

5 answers

377 views

Hi All,

I am trying to implement an AutoCompleteBox dynamically in C#, everything loads great but I have ~15,000 records to filter and it takes a few seconds to load. I have read that this can be improved with AsyncFilteringBehaviour but only ever see reference to how this is set in XAML.

I have tried to simply set the following, but am obviously missing something because it doesn't filter at all when I do this:

myAutoCompleteBox.FilteringBehavior = new AsyncFilteringBehavior();

Any help would be appreciated!

AutoCompleteBox

answered on 07 Sep 2017

1 answer

210 views

Customize calendar of Filter in GridView

Hi!

I have a Grid FilteringMode="FilterRow" and column type is Date , near funnel icon have button to show calendar , how can i customize that calendar with my component .

i search a lot in Documents and forums but could't find anything.

attached my component UI

GridView

answered on 07 Sep 2017

1 answer

155 views

Set RadToolTipService properties globally

Hello,

as mentioned in the title, I would like to set some of RadToolTipServices' properties globally. I tried to set them as follows:

<Style x:Key="RadToolTipStyle" TargetType="telerik:RadToolTip">

<Setter Property="Placement" Value="Top"/>

<Setter Property="HorizontalOffset" Value="10"/>

<Setter Property="VerticalOffset" Value="10"/>

...

</Style>

<Style TargetType="telerik:RadToolTip" BasedOn="{StaticResource RadToolTipStyle}"/>

but this had no effect on the positioning. Do I have to set those properties elsewhere or is this a bug?
Currently, I got the desired result by adjusting the margin in the template.

Best regards

ToolTip

answered on 07 Sep 2017

6 answers

826 views

How to bind PropertyGrid to GridView selectedItem in code?

I have a GridView and a PropertyGrid both created in code not XAML.
Now I try to bind the selected item of the GridView to the PropertyGrid also via code and not XAML.
I tried something like this:

Binding propGridBinding = new Binding("SelectedItem");

propGridBinding.ElementName = "myTreeListView"; // assuming this is the name of the GridView

propertyGrid.Item = propGridBinding;

But when I try to run this code I get an error message like this:
An unhandled exception of type 'System.NotSupportedException' occurred in System.dll
Additional information: 'CultureInfoIetfLanguageTagConverter' is unable to convert '(null)' to 'System.String'.

I even get the same type of error if I just try to bind the PropertyGrid to a visual element to be able to view and edit its properties.

I must be missing something.

Any help is very much appreciated.

Thanks,
Markus

PropertyGrid

answered on 06 Sep 2017

1 answer

455 views

Custom control validation on dependency property using masked input

Hi

We have implemented a validation through data annotation on a RadMaskedTextInput using this link: http://docs.telerik.com/devtools/wpf/controls/radmaskedinput/features/validation/regex

We are having an issue when we are implementing it with a custom control.

In the provided solution when RadMaskedTextInput, one is provided through the control and the other one is directly in the MainWindow.

The first RadMaskedTextInput (from the custom control) does not validate the data.

The second RadMaskedTextInput is validating the data when we are directly typing in it.

we suspect that it is related to the fact that we are binding a dependency property

How can we modify the custom control to trigger the validation on the property?

Thank you for your help

Alexandre

Solution

https://drive.google.com/open?id=0B46KQ0X-Kpsddk1CWmcyeXV3bzg

MaskedInput (Numeric, DateTime, Text, Currency)

answered on 06 Sep 2017

3 answers

202 views

RadRibbonTab

Hi,

How to add tab separators for the Rad Ribbon Tabs in Ribbon view. I want the separators to appear whenever it exceeds the minimum window size

Could you please help me with this

BR,

Shreedhar Bhat

TabControl

answered on 06 Sep 2017

3 answers

507 views

Data Binding to RichTextBox

Hi,

How I can do binding to RTB.

in C# :

richTextBox1.Document

But if i want to bind in XML How.

I did the following but not working..

<RichTextBox FontSize="22" MaxWidth ="450" MaxHeight ="600" Name="richTextBox1"

Document ="{Binding FLD}" VerticalAlignment="Top"

Background="Brown" FontStretch="Condensed"

FontFamily="KFGQPC Uthmanic Script HAFS" >

<RichTextBox.Resources>

Please help.

Thanks

RichTextBox

answered on 06 Sep 2017

3 answers

761 views

[Solved] Caret-position not as expected when starting to edit

I've got a GridView which has AutoGenerateColumn set to true, and I don't apply any custom styles or templates, so it's pretty basic.

I've noticed that when I want to edit a cell and clicks with the mouse the caret always end up one step to the left.

I've tried different EditTriggers and SelectionUnits, but it doesn't change the behaviour.

Not a major issue, but still a bit annoying.

GridView

answered on 06 Sep 2017

3 answers

227 views

[RadCartesianChart] How to change line adsorption to point adsorption in RadCartesianChart?

I am facing point adsorption issues on RadCartesianChart.

When moving the mouse in chart, there is a line adsorption with the related data. But as in customer data, there are many very similiar data in one abscissa, so I want to change the line adsorption to point adsorption when mouse is moved on it, and at the same time, the point style can be changed, for example, change color and enlarge.

Please see the png and suggest me some ideas to rectify this problem. Thanks!

Chart

answered on 06 Sep 2017

2 answers

139 views

Validation errors of controls inside RadExpander Control

Hi ,

I have enclosed multiple textboxes and drop down controls inside RadExpander control. Some of the controls have Required filed attached.

I have RadExpander collapsed by default. When i expand RadExpander ,Validation errors for these controls are not getting displayed.

But once i expand the RadExpander control and go to a different tab and come back i see the validation errors. I tried to call a command explicitly on expanding the RadExpander control , validations are firing but messages are displayed against the controls.

Let me know if any faced this kind of issue and solution for this.

Regards,

Prasad.

General Discussions

answered on 05 Sep 2017