Questions on UI for WPF Forum

1 answer

559 views

GridViewCheckBoxColumn CheckBox Command part II

Hello I posted a question here: https://www.telerik.com/forums/gridviewcheckboxcolumn-checkbox-command#zvPzrS8xrECwPcG1wGYRTA and realized afterwards that the thread might be closed. Anyroad, I have a problem similar to the original poster. My ApprovalStatusEditCommand is not being fired. Also, as a side note, the DataMemberBinding is not necessary. Even without it the "IsChecked" bindings seem to be updating the object - even though the "IsApproved" is underlined (in Visual Studio) as "cannot resolve."

Any help resolving this would be much appreciated. Basically, I'm trying to execute a command if a checkbox (in a radgridview) is checked.

Kind regards,

Jonathan

P.S. I'm sorry if I created a duplicate post, but all my research has not really helped me work around this.

<telerik:GridViewDataColumn Header="Approved" DataMemberBinding="{Binding IsApproved, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="Auto" MinWidth="75" EditTriggers="CellClick" IsFilterable="False"> <telerik:GridViewDataColumn.CellTemplate> <DataTemplate> <telerik:GridViewCheckBox IsChecked="{Binding IsApproved, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" /> </DataTemplate> </telerik:GridViewDataColumn.CellTemplate> <telerik:GridViewDataColumn.CellEditTemplate> <DataTemplate> <CheckBox IsChecked="{Binding IsApproved, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Command="{Binding ApprovalStatusEditCommand, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" /> </DataTemplate> </telerik:GridViewDataColumn.CellEditTemplate> </telerik:GridViewDataColumn>

GridView

answered on 22 Mar 2019

4 answers

152 views

Size of Diagram for AutoLayout

Hi!

When creating a diagram with too many items with AutoLayout, it seems there is a maximum width the diagram will grow to.

Which causes a weird behavior of the items being places vertically.

Is it possible to set the width of the available space for the auto layout?

I've added a screenshot demonstrating the behavior.

Thanks!

Diagram

answered on 22 Mar 2019

3 answers

198 views

FlagEnumEditor does not work if mutlple Item is set to RadPropertyGrid:SourceItems

Method to reproduce
（telerik version 2018.1.220）

Create a structure that has enum with [Flags] attribute as members
Set the array of the above structure to SourceItems of RadPropertyGrid
Set "Intersection" or "Union" for "PropertySetMode" of "RadProeprtyGrid"
Run the application
Changing enum member flags from PropertyGrid with FlagEnumEditor will not be applied.
In addition, the following exception occurs when changing the flag

---
Exception thrown: 'System.InvalidCastException' in mscorlib.dll
Exception thrown: 'System.InvalidCastException' in mscorlib.dll
Exception thrown: 'System.Reflection.TargetInvocationException' in mscorlib.dll
System.Windows.Data Error: 8 : Cannot save value from target back to source. BindingExpression:Path=CurrentPropertySet[Types]; DataItem='PropertySetViewModel' (HashCode=30131813); target element is 'FlagEnumEditor' (Name=''); target property is 'Value' (type 'Object') InvalidCastException:'System.InvalidCastException: 'System.String' から 'enum_flags_test.MainWindow+EnumTest+Type' への無効なキャストです。
System.Convert.DefaultToType(IConvertible value, Type targetType, IFormatProvider provider)
System.String.System.IConvertible.ToType(Type type, IFormatProvider provider)
System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
Telerik.Windows.Controls.RadPropertyGrid.<>c__DisplayClass2b.<OnPropertySetViewModelChanged>b__28(Object s, PropertyChangedEventArgs e)
System.ComponentModel.PropertyChangedEventHandler.Invoke(Object sender, PropertyChangedEventArgs e)
Telerik.Windows.Controls.Data.PropertyGrid.PropertySet.OnPropertyChanged(String fileName)
Telerik.Windows.Controls.Data.PropertyGrid.PropertySet.set_Item(String property, Object value)'

---

Is there any workaround?
Your help would be welcomed.

---

MainWindow.xaml.cs

public partial class MainWindow : Window

{

public class EnumTest

{

[Flags]

public enum Type

{

None = 0,

First = 1 << 0,

Second = 1 << 1,

}

public Type Types { get; set; } = Type.None;

}

public MainWindow()

{

InitializeComponent();

PropertyGrid1.Item = new EnumTest[] { new EnumTest() };

}

MainWindow.xaml

<Window x:Class="enum_flags_test.MainWindow"

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

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

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

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

xmlns:local="clr-namespace:enum_flags_test"

mc:Ignorable="d"

Title="MainWindow" Height="450" Width="800">

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

<telerik:RadPropertyGrid

x:Name="PropertyGrid1"

PropertySetMode="Intersection"/>

</Grid>

</Window>

PropertyGrid

answered on 22 Mar 2019

4 answers

235 views

Replace Empty Cells With Zeros

Hello.
Is there any way to replace the empty cells from the PivotGrid with zeros?.
the attached picture is an example of my PivotGrid I want to replace those empty cells with zeros.
Please Help me.

PivotGrid

answered on 22 Mar 2019

1 answer

237 views

How use the buttons

Hi, I using the NavigationView and created some itens but I dont know how use these buttons with my new pages.

NavigationView (Hamburger Menu)

answered on 22 Mar 2019

1 answer

189 views

Tab to indent text in cell

Hello, how do we set the `GridViewDataColumn` to capture Tab and indent the text in the cell instead of moving to another cell?

Thank you,

Jan

GridView

answered on 22 Mar 2019

8 answers

1.0K+ views

GridViewDataColumn Background with color enumeration and selected row

Was trying to do a quick spike that changed the Background of the grid and in haste I used a named color instead of the hex value

    
            <telerik:GridViewDataColumn Background="Black" IsReadOnly="True"   
        
            DataType="{x:Null}" HeaderText="Company Name" UniqueName="CompanyName" />

instead of

    
            <telerik:GridViewDataColumn Background="#10000000" IsReadOnly="True"   
        
            DataType="{x:Null}" HeaderText="Company Name" UniqueName="CompanyName" />

and the selected row was no longer visible. Finding the hex value for Black is not difficult, so if you bump into this issue that is the workaround. It seems the issue is related to the Alpha portion of the color. The named colors have alpha set to Opaque, so you must set the alpha channel to something less than FF. I'm currently using E5 (90%) which makes a very faint highlight.

GridView

answered on 22 Mar 2019

3 answers

246 views

Multi-Series Pie Chart?

Quick Question:
Is it possible to create a pie chart with multiple series? Such as, a stacked pie chart or grouped pie chart.

Thanks,
JT

Chart

answered on 22 Mar 2019

4 answers

738 views

Scroll position

Hi.
When I open a combobox, selected item is scrolled somewhere in the bottom of dropdown area (Screenshot 1). I need to have selected item scrolled at the very top of that area (Screenshot 2). Is this possible? How can I do that?

Thank you.

Tomas

ComboBox