How to set width to 100 in WPF

Question

Is there any way how to tell component in WPF to take 100  of available space     Like    width  100       in CSS   I ve got this XAML  and I don t know how to force Grid to take 100  width    lt ListBox Name  lstConnections  gt     lt ListBox ItemTemplate gt       lt DataTemplate gt         lt Grid Background  LightPink  gt           lt Grid ColumnDefinitions gt             lt ColumnDefinition Width  Auto   gt             lt ColumnDefinition Width  Auto   gt           lt  Grid ColumnDefinitions gt           lt Grid RowDefinitions gt             lt RowDefinition Height  Auto   gt             lt RowDefinition Height  Auto   gt           lt  Grid RowDefinitions gt           lt TextBlock Grid Row  0  Grid Column  0  Text   Binding Path User   Margin  4  gt  lt  TextBlock gt           lt TextBlock Grid Row  0  Grid Column  1  Text   Binding Path Password   Margin  4  gt  lt  TextBlock gt           lt TextBlock Grid Row  1  Grid Column  0  Grid ColumnSpan  2  Text   Binding Path Host   Margin  4  gt  lt  TextBlock gt         lt  Grid gt       lt  DataTemplate gt     lt  ListBox ItemTemplate gt   lt  ListBox gt    Result looks like    alt text http   foto darth cz pictures wpf width jpg  I made it pink so it s obvious how much space does it take  I need to make the pink grid 100  width

User · Accepted Answer

It is the container of the Grid that is imposing on its width  In this case  that s a ListBoxItem  which is left-aligned by default  You can set it to stretch as follows    lt ListBox gt       lt  -- other XAML omitted  you just need to add the following bit -- gt       lt ListBox ItemContainerStyle gt           lt Style TargetType  ListBoxItem  gt               lt Setter Property  HorizontalAlignment  Value  Stretch   gt           lt  Style gt       lt  ListBox ItemContainerStyle gt   lt  ListBox gt

User · Answer

You could use HorizontalContentAlignment  Stretch  as follows     lt ListBox HorizontalContentAlignment  Stretch   gt

[wpf] How to set width to 100% in WPF

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