Questions on UI for WPF Forum

2 answers

270 views

Hi, can someone show me a simple way how to set "mat:ThemeEffectsHelper.IsAcrylic" to false? I was not able to create a new style based on DialogWindowStyle without getting errors.

Thanks!

Regards
Heiko

FileDialogs

answered on 06 Apr 2020

5 answers

137 views

Header Row in AutoCompleteBox DropDown

Is there a way to add a header row to the DropDownItemTemplate in the RadAutoCompleteBox?

AutoCompleteBox

answered on 06 Apr 2020

3 answers

301 views

Diagram Canvas Size

How to create a Rad Diagram canvas with fixed height and width and get only the positive quadrant (x,y) in the view port?

The issue is when I add shapes to the canvas it can be dragged to any quadrant of the canvas, which I want to restrict.

In any case the shapes should not go outside the positive x,y coordinates. I could not find any setting or implementation related to this any samples.

Diagram

answered on 06 Apr 2020

4 answers

898 views

DisplayMemberPath issue - values not displaying

We currently having issues using the RadMultiColumnComboBox when we change property on the view model which we are binding to.

1. We have multiple items with properties and one property is connected to the ComboBox.

2. We select one item in the view and the connected property is displayed in the ComboBox correctly.

3. We select a different item with the same value in the connected property, but the ComboBox does not display any text (null text).

4. Selecting another item with different value in the connected property results in displaying text again in the ComboBox.

For example items could be employees with a display name (DisplayName) property. We have a list of employees populated as item source provider.

The DisplayMemberPath in the ComboBox is set to the DisplayName property.

The SelectedItem property is set to the employee. We also have three more ComboBoxes on the same page that behave correctly (just binding to different properties) and cause no issue.

Any idea what could go wrong?

Regards, Martin

MultiColumnComboBox

answered on 06 Apr 2020

3 answers

154 views

On Sheet Change Scroll to A1

I would like to always freeze the first physical row and column whenever a sheet is selected. However the Freeze Panes method always indexes into whichever rows and columns are currently in the viewport, which might be anywhere on the sheet. How can I get the viewport to scroll to first physical row and column on sheet change?

Spreadsheet

answered on 06 Apr 2020

5 answers

160 views

System.ArgumentException when adding viewDefinitions to RadScheduleView

Hello,

I'm using a RadScheduleView in my project, and it works fine most of the time. But I have had two cases where I get a System.ArgumentException right at the begining when I load my app, whitout being able to do anything about it.

some details :

my app opens at first on a screen containing a radScheduleView.
the radScheduleView is mannulay set to the user's preference (what views he wants, what dayStartTime / dayEndTime, FirstDayOfWeek etc...) in code behind

so what I do is I clear the ViewDefinitionsCollection and then add exactly the views I want, depending on those settings.

here is the function that adds the ViewDefinitions :

/// <summary>

/// Adds a new ViewDefinition in the Collection

/// </summary>

/// <param name="viewDefinitionId">id of the view</param>

/// <param name="viewDefinitionName">display text for the view (localized)</param>

private void AddViewDefinition(int viewDefinitionId, string viewDefinitionName)

{

ViewDefinitionBase viewDefinition = null;

int activeViewDefinitionIndex = ScheduleView.ActiveViewDefinitionIndex;

switch (viewDefinitionId)

{

case 0: ScheduleView.ViewDefinitions.Add(viewDefinition = new DayViewDefinition { Title = viewDefinitionName, TimerulerMajorTickStringFormat = "{0:t} " }); break;

case 1: ScheduleView.ViewDefinitions.Add(viewDefinition = new WeekViewDefinition { Title = viewDefinitionName, TimerulerMajorTickStringFormat = "{0:t} " }); break;

case 2: ScheduleView.ViewDefinitions.Add(viewDefinition = new WeekViewDefinition

{

Title = viewDefinitionName,

TimerulerMajorTickStringFormat = "{0:t} ",

GroupFilter = obj =>

{

if (obj is DateTime)

{

var day = ((DateTime)obj).DayOfWeek.GetRecurrenceDay();

return (day & WorkingDays) == day;

}

return true;

}

}); break;

case 3: ScheduleView.ViewDefinitions.Add(viewDefinition = new MonthViewDefinition { Title = viewDefinitionName }); break;

}

if (viewDefinition == null) return;

viewDefinition.SetValue(IdProperty, viewDefinitionId);

viewDefinition.SetValue(DayViewDefinition.EnableSmallAppointmentRenderingProperty, true);

ScheduleView.ActiveViewDefinitionIndex = activeViewDefinitionIndex;

}



and the Issue I have seems to lies within this function (see attached screenshot for details on the exception)



do you have any idea what is happening here? (I don't)

as far as I can tell, this code should work fine to add new ViewDefinitions to the collection, but for whatever reason I get this Exception. I could catch it and move on but then again, I'd rather know what goes wrong than try to ignore it.

thanks

ScheduleView

answered on 03 Apr 2020

1 answer

602 views

Cannot resolve dependency to assembly 'Telerik.OpenAccess

I have tried to migrate one project in a big solution to the new csproj SDK style

But I get this error
Error MC1000 Unknown build error, 'Cannot resolve dependency to assembly 'Telerik.OpenAccess, Version=2013.2.702.1, Culture=neutral, PublicKeyToken=7ce17eeaf1d59342' because it has not been preloaded. When using the ReflectionOnly APIs, dependent assemblies must be pre-loaded or loaded on demand through the ReflectionOnlyAssemblyResolve event.' Reports C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Microsoft.WinFx.targets

To avoid having nuget packages inside our git repository we have all the telerik packages on our own private nuget server

And it seems that in the old style all the telerik packages inside our Seges.Dms.Telerik package are added individually, but when I look now in "Manage nuget packages" they both have the same.

One "funny" note is that on my machine in the Repository where I changed the code it builds, but if I do a new clone and build again I get the error and so do TeamCity and a fellew programmer

Also when looking at https://www.telerik.com/forums/could-not-load-assembly-telerik-openaccess it sounds like people have installed OpenAccess SDK, but this have never been installed on our Teamcity server or my machine, so didnt find any help in this

Old csproj https://paste.ofcode.org/RBMWb74Mh75PNLAEkkAiE9

New csproj https://paste.ofcode.org/udNjMVcJLTQRJhGM4uSSEw

General Discussions

answered on 03 Apr 2020

1 answer

209 views

Autofit Columns

Is there a way to programmatically ensure columns in a worksheet have widths set for their widest cell?

Spreadsheet

answered on 03 Apr 2020

1 answer

159 views

CSS TreeView Icons and Slight Change

I was wondering how the Treeview actually extracts the icons from the icon file? Probably me geeting too old LOL!!. Is it using pixel positions?

What I was trying to do is modify the Treeview so that links to files are embedded correctly (i.e. one level in from the parent.). It seemed easy to just make it a new level (that works!!). But then I would need to use an alternate set of icons. For example, replace the folder icon with a "- " graphic and then set the other two graphics to blanks.

But perhaps their is a better approach. (see attached screenshot)

BTW … just in case I can convince my boss of really doing something using this … are you available for a small project?

TreeView

answered on 02 Apr 2020

2 answers

292 views

Scrollbar for textbox in RadGridView is disabled

I'm using a RadGridView with xaml and vb. One of the columns in the grid is a textbox. This same grid is used for both creating data and for viewing it later. The user can easily enter text in the textbox and the vertical scrollbar works fine. If the user is later just viewing this gridview, the textbox is readonly. The textbox has a vertical scrollbar, but the scrollbar doesn't work. Is this expected behavior with the textbox is readonly?

GridView

answered on 02 Apr 2020