There is some way, a property like VerticalContentAlignment for aligning grid children or do I have to do it manually one by one?
If most of the grid's children are of the same type you can use styles, for example putting this at the start of the grid will align all text boxes
<Grid>
<Grid.Resources>
<Style TargetType="TextBox">
<Setter Property="HorizontalAlignment" Value="Right"/>
</Style>
</Grid.Resources>
.
.
.
If you have only a few types of controls inside the grid this is very useful.
If TextAlignment works for you instead of HorizontalAlignment, it can be made even simpler:
<Grid TextBlock.TextAlignment="Right">
<TextBox ....
....
Related
I want to override the width of the scroll bar of ScrollViewer in WPF. I manage to widen its width but when I tried to make it slimmer it didn't work. It seems that it has a minimum width that can't be overridden. Below is the code that I have.
Why is the code below does not work to make the width of the scrollbar slimmer?
Thanks
<ScrollViewer.Resources>
<Style TargetType="ScrollBar">
<Style.Triggers>
<Trigger Property="Orientation" Value="Vertical">
<Setter Property="Width" Value="20"/>
</Trigger>
</Style.Triggers>
</Style>
</ScrollViewer.Resources>
You need to edit the template.
Place the editor cursor inside the ScrollViewer tag and then in your properties window go to "Miscellaneous -> Template", click the little rectangle to the right and select "Convert to New Resource" from the popup menu:
That will create a new template containing, among other things, a scrollbar named PART_VerticalScrollBar. Put the cursor over that scrollbar tag and repeat the above to template that out as well, this will create a control template that starts like this:
<ControlTemplate x:Key="ScrollBarControlTemplate1" TargetType="{x:Type ScrollBar}">
<Grid x:Name="Bg" SnapsToDevicePixels="True">
<Grid.RowDefinitions>
<RowDefinition MaxHeight="{DynamicResource {x:Static SystemParameters.VerticalScrollBarButtonHeightKey}}"/>
Now set MaxWidth=10 (or whatever on that Grid element).
The only other problem you may encounter is that if you make it too small then the up/down arrows on the scrollbar buttons might disappear, that's because their default template places a margin around their path:
<Path x:Name="ArrowTop" Data="M0,4C0,4 ..etc ... " Fill="#FF606060" Margin="3,4,3,3" Stretch="Uniform"/>
This can be easily solved by removing that margin setting and/or replacing the path altogether with something else.
I need to set Height,Width and Border Color for Each list items in the Listbox. In the event that I set Setter Property
it's setting for entire listbox. Be that as it may, I need to set every last rundown thing. Any one help me.
here's my code:
<ListBox x:Name="lbOne" PreviewMouseLeftButtonDown="ListBox_PreviewMouseLeftButtonDown"
HorizontalAlignment="Left" Margin="12,29,0,12" Width="215"
ScrollViewer.VerticalScrollBarVisibility="Visible" />
Try the following piece of code and let me know if it works for you.
<ListBox ...>
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem" BasedOn="{StaticResource {x:Type ListBoxItem}}">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ListBox.ItemContainerStyle>
Also, please refer the followings link for reference.
Stretch ListBox Items hit area to full width of the ListBox? ListBox style is set implicity through a theme
Silverlight 3: ListBox DataTemplate HorizontalAlignment
Probably, refer to the below link for using the ListBox Item properties appropriately.
http://msdn.microsoft.com/en-us/library/cc278062(v=vs.95).aspx
The stuff that does work
I need to style controls of a certain type that are children of a StackPanel. I'm using:
<StackPanel>
<StackPanel.Resources>
<Style TargetType="{x:Type TextBlock}">...</Style>
</StackPanel.Resources>
<TextBlock ...>
...
</StackPanel>
And this works fine! Each TextBlock looks to the resources of it's parent (the StackPanel) to find out how it should be styled. It doesn't matter how far down you nest the TextBlock down a StackPanel... if it doesn't find a style in its direct parent, it will look at its parent's parent and so on, until it finds something (in this case, the style that was defined in ).
The stuff that doesn't work
I ran into a problem when I nested a TextBlock inside a ContentControl, which had a Template (see code below). The ControlTemplate seems to disrupt the way a TextBlock retrieves its style from its parents, grandparents,...
The use of a ControlTemplate effectively seems to knock out cold the TextBlock's means of finding its rightful style (the one in StackPanel.Resources). When it encounters a ControlTemplate, it stops looking for its style in the resources up the tree, and instead defaults to the style in MergedDictionaries of the Application itself.
<StackPanel Orientation="Vertical" Background="LightGray">
<StackPanel.Resources>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Foreground" Value="Green" />
</Style>
</StackPanel.Resources>
<TextBlock Text="plain and simple in stackpanel, green" />
<ContentControl>
<TextBlock Text="inside ContentControl, still green" />
</ContentControl>
<ContentControl>
<ContentControl.Template>
<ControlTemplate TargetType="{x:Type ContentControl}">
<StackPanel Orientation="Vertical">
<ContentPresenter />
<TextBlock Text="how come this one - placed in the template - is not green?" />
</StackPanel>
</ControlTemplate>
</ContentControl.Template>
<TextBlock Text="inside ContentControl with a template, this one is green as well" />
</ContentControl>
</StackPanel>
Is there a way - besides duplicating the Style in StackPanel.Resources to ControlTemplate.Resources - to make the TextBlock inside that ControlTemplate find the defined style?
Thanks...
WPF considers ControlTemplates to be a boundry, and will not apply implicit styles (styles without an x:Key) inside of templates.
But there is one exception to this rule: anything that inherits from Control will apply implicit styles.
So you could use a Label instead of a TextBlock, and it would apply the implicit style defined further up your XAML hierarchy, however since TextBlock inherits from FrameworkElement instead of Control, it won't apply the implicit style automatically and you have to add it manually.
My most common way to get around this is to add an implicit style in the ControlTemplate.Resources that is BasedOn the existing implicit TextBlock style
<ControlTemplate.Resources>
<Style TargetType="{x:Type TextBlock}"
BasedOn="{StaticResource {x:Type TextBlock}}" />
<ControlTemplate.Resources>
Other common ways of getting around this are:
Place the implicit style in <Application.Resources>. Styles placed here will apply to your entire application, regardless of template boundaries. Be careful with this though, as it will apply the style to TextBlocks inside of other controls as well, like Buttons or ComboBoxes
<Application.Resources>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Foreground" Value="Green" />
</Style>
</Application.Resources>
Use a Label instead of a TextBlock since it's inherited from Control, so will apply implicit Styles defined outside the ControlTemplate
Give the base style an x:Key and use it as the base style for an implicit TextBlock styles inside the ControlTemplate. It's pretty much the same as the top solution, however it's used for base styles that have an x:Key attribute
<Style x:Key="BaseTextBlockStyle" TargetType="{x:Type TextBlock}">
<Setter Property="Foreground" Value="Green" />
</Style>
...
<ControlTemplate.Resources>
<Style TargetType="{x:Type TextBlock}"
BasedOn="{StaticResource BaseTextBlockStyle}" />
<ControlTemplate.Resources>
I have a question which I guess it's some basic knowledge which I missing in WPF.
I set default width (generix.XML) to Textbox with some Minim width for the textbox
<Style TargetType="{x:Type TextBox}">
<Setter Property="SnapsToDevicePixels" Value="True"/>
<Setter Property="OverridesDefaultStyle" Value="True"/>
<Setter Property="Foreground" Value="Black"/>
<Setter Property="KeyboardNavigation.TabNavigation" Value="None"/>
<Setter Property="FocusVisualStyle" Value="{x:Null}"/>
<Setter Property="MinWidth" Value="50"/>
</Style>
I have two deferent controls which holds text box. Both Textboxes has same width..
I which to add some property to one of the controls which will declare the width of the textbox, and will override its width declaration, in a way that the textbox will 'find' to this property.
here is some drawing describes my requirement:
Update:
I just figure out that I didn't described one more importing thing.
I Have some DataTemplate which uses the textbox. As I wrote above, I have two controls which have the same DataType (MyData) I also created DateTemplate to display MyData. I would like that each control will display the textbox (from the datatemple) with different width.
update 2:
here is some more code
1- The dataTemplate to my data where is using textbox
<DataTemplate DataType="{x:Type ml:MyData}">
<Border BorderBrush="Transparent" ClipToBounds="True" Style="{StaticResource errorBorder}">
<TextBox Text="{Binding MyText}"/>
</Border>
</DataTemplate>
2- the way I used the datatemplate which uses the Textbox.
<ContentPresenter Grid.Column="1" Margin="10,1,10,1" HorizontalAlignment="Left" Content="{Binding}" />
This contentPresentor is been displayed in two diffrent controls. and as I wrote before, I would like that each control will display the textbox in diferent width
It's look like I miss some basic knloage (attached proerty? logic/visual tree?).
Thanks, Leon
Good question, the main idea in DataTemplate is that you have specific graphical representation for some data. You can read more about it in MSDN.
If you want to customize your TextBox, and have it different properties inside different UserControls, you might want to use ControlTemplate.
The thing is that if you want to control properties of specific control (in this case TextBox with some border) you should use ControlTemplate.
Your XAML should look something like:
<ControlTemplate TargetType="{x:Type TextBox}">
<--! define the ControlTemplate here with some Width property-->
<ControlTemplate>
and the Control which use it will have TextBox (as you defined it, with Border):
<TextBox Grid.Column="1" Margin="10,1,10,1" HorizontalAlignment="Left" Content="{Binding}" Width="50"/>
is it possible to specify the color for the row selector in silverlight grid
Yes but you need to copy the control template for the DataGridRowHeader control and place it in a Style object in a resource:-
<UserControl.Resources>
<Style x:Key="CustomRowHeader" TargetType="DataGridRowHeader">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="localprimitives:DataGridRowHeader">
<!-- Copy of the rest of the standard controls template -->
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<UserControl.Resources>
<DataGrid RowHeaderStyle="{StaticResouce CustomRowHeader}" ... >
Now you can fiddle around with the color value and pretty much anything else that is used to render the row selector.
You can probably do this with Blend fairly well if you have it and are familiar with using it. I prefer to copy the template from the documentation. See DataGrid Styles and Templates
No, but it's perfectly possible to subdivide a grid into rows/columns and fill them with rectangles+background or something like that.