datatrigger_开发者

How to reference "PreviousData" when setting ContentPresenter.Style

In the following code I am trying to set the style of the first item in my collection to one template and the rest to a different template by checking if the PreviousElement is null.I think my relativ[详细]

2023-04-12 23:58 分类：问答

Data Trigger using Converter not working

I am trying to update the color of textblock depending on it value. Seems simple however not working.[详细]

2023-04-12 17:31 分类：问答

EnterActions animations not stopping and ExitActions animations not starting

one of my company\'s applications displays pop ups by means of a content control centered on the screen, which is hidden until needed, and a radial gradient rectangle behind it to block the rest of th[详细]

2023-04-10 01:56 分类：问答

How to use DataTrigger from code in Silverlight?

I have found a few examples that relate to WPF, but none for Silverlight. So, what is a working example of setting up a Microsoft.Expression.Interactivity.Core.DataTrigger in code?[详细]

2023-04-08 19:47 分类：问答

Expand Child When Parent IsExpanded in a TreeView

I am attempting to expand a Child Node when its parent is expanded. Otherwise stated: (Child.IsExpanded == Parent.IsExpanded)[详细]

2023-04-06 18:33 分类：问答

DataTrigger in CellTemplate binding to HeaderTemplate; can it work?

The goal here would be to check all grid checkboxes if the header checkbox changes: <Window.Resources>[详细]

2023-04-01 07:57 分类：问答

Implementing both controltemplate and datatriggers for a textbox control

I\'m new to WPF....I have tried implementing controltemplate and datatriggers both for textbox..I want to change the background color of the textbox when the value entered in that is not \"18\" throug[详细]

2023-03-30 14:43 分类：问答

Calling an ElementMethod in a DataTrigger

I have a TextBox thats using this Style. I need to add a Focus() method to in this style. So that when the TextBox is Visible and the ValidParent Property is false then i call the Focus() method on th[详细]

2023-03-30 07:51 分类：问答

How to trigger a storyboard on property changed

I would like to have a storyboard started, whenever the value of MyCounterchanges. With a DataTrigger I only can trigger on a specific value.[详细]

2023-03-23 00:14 分类：问答

TemplateBinding from a Style DataTrigger In ControlTemplate

In the following XAML I\'m using a Rectangle with a Border as the Template for a ToggleButton. I want the BorderBrush to be a different colour to reflect the changing value of ToggleButton.IsChecked.[详细]

2023-03-22 01:04 分类：问答