Questions on UI for WPF Forum

3 answers

310 views

Own UserControl in PropertyGridRow (MVVM)

Hello,

I want to set a custom user control as an entry for some properties (full MVVM support). If the user clicks the button a custom file selector (modal) should be shown. If the user selects a file, the file path should be shown in the textfield and also should be bind to the changed property in the propertygrid.

UserControl: A grid with a textfield and a button

<UserControl x:Class="EN.Editor.UI.ImageSelector"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:local="clr-namespace:EN.Editor.UI"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

mc:Ignorable="d"

Width="100"

>

<Grid>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="*"></ColumnDefinition>

<ColumnDefinition Width="30"></ColumnDefinition>

</Grid.ColumnDefinitions>

<TextBox Grid.Column="0" Name="txtPath" Text="{Binding ImagePath, Mode=TwoWay}" />

<Button Grid.Column="1" Command="{Binding SelectFileCommand}" CommandParameter="{Binding}" Content="..." />

</Grid>

</UserControl>

ViewModel of the User Control (set as DataContext in Code behind)

public class ImageSelectorViewModel : ViewModelBase

{

private string imagePath;

public DelegateCommand SelectFileCommand { get; private set;}

public ImageSelectorViewModel()

{

this.SelectFileCommand = new DelegateCommand(x => SelectFile());

}

public string ImagePath

{

get { return imagePath; }

set

{

if (this.imagePath != value)

{

imagePath = value;

OnPropertyChanged(() => ImagePath);

}

private void SelectFile()

{

FileSelector fs = new FileSelector("Choose file");

if (fs.ShowDialog() == CommonFileDialogResult.Ok)

{

this.ImagePath = fs.FileName;

}

I set the user control as a custom editor attribute on the autogenerated item of my property grid

[Display(AutoGenerateField = true, Name = "Video Transition")]

[Telerik.Windows.Controls.Data.PropertyGrid.Editor(typeof(ImageSelector), EditorStyle.None)]

public string NavigateToMovie

{

get

{

return this.navigateToMovie;

}

set

{

if (this.navigateToMovie != value)

{

this.navigateToMovie = value;

this.OnPropertyChanged(() => NavigateToMovie);

}

I've tried many different ways, but the click command isn't triggered. If I replace the click command on the button with a Click event handler the file selector is shown, but the selected file path isn't set on the property in the property grid. I've also tried to set the targetProperty Attribute to "ImagePath" but also without success.

For better code separation I need the full MVVM style.

I've spent lot of hours to get this done - without success.

What's wrong with my code? Thanks.

PropertyGrid

answered on 23 Jan 2017

6 answers

224 views

Change task backgroud in the themes

Currently I'm using the themes Visualstudio2013 for gantt view.

I only want to change background in one case and others would like to normal in the themes .

I found the sample "Tasks with different color" in the SDK. But the sample didn't work well. the fonts color , progress bar color are reset.

Any suggestion for this situation?

Thanks

-Jacky

GanttView

answered on 20 Jan 2017

3 answers

151 views

TreeListViewRow.ParentRow is null if the parent row is not in the visible area

Hi,

I understand from this http://www.telerik.com/forums/parentrow-problem that it is an expected beahvior.

I can't disable virtualization as it leads to performance issues.

I might have huge tree items in my application and i'm trying the locate the parent row on left arrow key down (the parent item will not be in visible area).

I cannot get the parent object as this is common behavior implemented in common library.

Please let me know if there is any other workaround.

TreeListView

answered on 20 Jan 2017

1 answer

215 views

Brush Editor

Hi,

I don't find any Brush Editor control for the Property Grid.
This Editor doesn't exist ?

Regards

PropertyGrid

answered on 20 Jan 2017

1 answer

138 views

Enter Data into hidden columns

Hi,

I am currently hiding few columns in the activeWorkSheet ,my question was is there a way to enter data to hidden columns still keeping the column hidden state true??

Spreadsheet

answered on 20 Jan 2017

1 answer

118 views

Can not cut

when click cut or press Ctrl+X the selected text is copyed but not disappear

Is any solution for this

PropertyGrid

answered on 20 Jan 2017

1 answer

429 views

Tabs use view/viewmodels for each???

Hello All,

I'm trying the tabcontrol for the first time, and am very curious as to do I create a new view/viewmodel pair for each tab or handle everything in the first pair where the overall top tabcontrol is based??? I think that I would like to have separate ones for ease in development but I haven't figured out as to how to assign them to the tab items... Or is it just better to have in all in one?

What am I missing?

Any help would be greatly appreciated,

Thanks in advance,

Kevin Orcutt

TabControl

answered on 20 Jan 2017

0 answers

98 views

Filter Popup curtailed when window is resized

I have grid with filter option, there are more than 15 records and window is resized when i click filter button then the last control(filter and cancel button) is getting curtailed. Please suggest to fix this and find screenshot for issue.

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