Questions on UI for WPF Forum

0 answers

206 views

Hi team,

I am reading the implicite style of radbutton, and find that the storyborad of mouse over state is below

<VisualState x:Name="MouseOver">

<Storyboard>

<DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="OuterMouseOverBorder"/>

</Storyboard>

</VisualState>

And my question is why use UIElement.Opacity here instead just Opacity, like other states' storyborad do?

Thanks,

Jingfei

Buttons

asked on 11 Apr 2015

0 answers

39 views

How are the states of RadButton changing

Hi team,

When I try to customize the styles and templates of RadButton, I am blocked by the states transition of RadButton. There are focused and unfocused states, also there are normal, pressed and mouse over states. The normal, pressed and mouse over states are straightforward to comprehesive. However, i don't quite understand how the focused and unfocused states work when a user click the button.

Thanks,

Jingfei

Buttons

asked on 11 Apr 2015

1 answer

184 views

RadContextMenu click on a child item

Hi there,

I have following layouts

<Border>

<context menu is here>

<other child items>

</Border>

But i found that i need to carefully click the items to so that the context menu can be triggered. If clicking to a blank area, the upper level context menu is triggered.

How do i avoid this?

ContextMenu

answered on 11 Apr 2015

1 answer

92 views

Is RadPropertyGrid designing for cancel operations

I am wondering if there are easy ways to implement cancel logic in RadPropertyGrid?

Thanks,
Jingfei

PropertyGrid

answered on 11 Apr 2015

2 answers

167 views

How to know the index of one GridViewCell

Hi team,
I am using CellStyleSelector documented in this link. However, in the following code

public override Style SelectStyle(object item, DependencyObject container)

{

if (item is Club)

{

Club club = item as Club;

if (club.StadiumCapacity > 50000)

{

return BigStadiumStyle;

}

else

{

return SmallStadiumStyle;

}

return null;

}

I want to know the column index of the GridViewCell. I know the container object is type of GridViewCell. However i don't know how to continue. I read some class documentation, finding no proper ways. Any ideas?

Thanks,
Jingfei

GridView

answered on 11 Apr 2015

12 answers

305 views

RadDataForm bound to data with Collection

RadDataForm is really nice when binding to data with simple properties (int, string, bool, ...) but now I stuck while binding it to an entity type which has a collection of entities from another type. Let's assume there is a class Category with Fields ID (of type int) and Name (of type string) but also a property of type List<Product>.

I use a RadListBox with a custom DataTemplate to show the products (inside RadDataForm EditTemplate) but when I edit values of a product the RadDataForm does not recognize that changes as it only checks for edits at the bound object (which is the Category but not the related products). Is this possible with RadDataForm? How can I tell my RadDataForm (manually) that the CurrentItem has changed?

DataForm

answered on 11 Apr 2015

0 answers

96 views

Offset of custom connectors doesn't work after graphSource.Clear()

Hi team,

In order to make my problem clear, I would list what I've done currently.

1. I am using MVVM, so I have view models of nodes, links and a graph source. All these implementations follow the guideline of RadDiagram MVVM. And it works fine.

2. Then I want to define some custom connectors. According to this thread, I manage to add custom connectors to my digram.

3. The solution of that thread mentioned above is using a attached property. And I also have a requirement: I need to remove or add nodes runtime. So I have following codes

if (this._graphSource == null)

{

this._graphSource = new LineGraph();

}

this._graphSource.Clear();

this._graphSource.PopulateGraph(this);

return this._graphSource;

And when my application starts up for the first time, the offsets of the custom connectors work properly. However, when I add or remove nodes, the above if statement wouldn't be executed, it would clear all the nodes existed, and re-populate the graph again. However, the offsets don't take effect now. Removing the if statement, then the offset works no matter I add or delete nodes.

The key is I don't want to create the LineGraph object each time I delete or add nodes.

Hope make myself clear.

Best Regards,

Jingfei

Diagram

asked on 11 Apr 2015

1 answer

77 views

Fill below or above graph

Is it possible to specify the fill direction explicitely?

At the moment, when displaying an Area series, the series is filled between the graph and zero. However, I sometimes need the filled area to be above or below the graph, independent of the actual value.

Alex

ChartView

answered on 10 Apr 2015

1 answer

230 views

Source Code of RadControl's WPF Demo

Where can I find source code of RadControl's WPF demo? I have already downloaded and installed demo on my local system. I am looking for a Visual Studio 2013 project solution.

Thanks.

General Discussions

answered on 10 Apr 2015

1 answer

56 views

Debug Bindings - Tool

This may be about JustCode but its really about WPF. So, move this entry if you think it'd be better serviced elsewhere.

Do you have a tool that will highlight Binding errors? I realize that Binding is hard because its not until the control is bound that we know if it worked or not. Right now, the only way to tell is by watching Visual Studio's lame Output window... then, its hard to spot the exceptions.

Even if it is after the code is started, it'd be awesome to have a tool that would list and allow navigation to controls that encountered a Binding error.

Thanks,

Joel

General Discussions

answered on 10 Apr 2015