We Keep Coding

C# WPF - Change column background color in code

I've never really worked with WPF before so this might be a newb question but is there a way to change the background color of a column of a WPF grid?
I want to change column 0's background color from the code.
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition x:Name="Banner" Width="25" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Border Grid.Row="0" Grid.Column="0" Background="Gainsboro" />
<Border Grid.Row="1" Grid.Column="0" Background="Gainsboro" />
<Border Grid.Row="2" Grid.Column="0" Background="Gainsboro" />
<Border Grid.Row="3" Grid.Column="0" Background="Gainsboro" />
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Label x:Name="titleLabel"
Grid.Row="1" Grid.Column="1" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="3"
FontWeight="Bold"
Content="Title" >
</Label>
<Label x:Name="msgLabel"
Grid.Row="2" Grid.Column="1" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="3"
Content="Title" >
</Label>
</Grid>

You can add one more border and place it in first column (note RowSpan):
<Border x:Name="firstColumn"
Grid.Column="0"
Grid.Row="0"
Grid.RowSpan="4"
Background="Transparent"/>
When need to change background from code, just do
firstColumn.Background = Brushes.Red;

WPF fixed rows are resizing

I'm new in WPF and I try to creat specific UserControl to display data for a single product. I used Grid inside UserControl. So I create 5 columns and 3 rows. I want ot make 4 columns fixed (image, green-clored, blue-colored and column with controls) and last column (orange-colored) to fill all availabel space. Here my XAML and few screenshots:
<Grid Margin="0,0,0,5" Background="#FFDCD9D9" >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="80" />
<ColumnDefinition Width="70" />
<ColumnDefinition Width="70" />
<ColumnDefinition Width="70" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Image Grid.Column="0" Grid.Row="0" Grid.RowSpan="4" Source="{Binding ItemThumbnailUrl}" Stretch="None" HorizontalAlignment="Right" Margin="5,0" />
<StackPanel Grid.Column="1" Grid.Row="0" Grid.ColumnSpan="4" Background="#FFDA6F6F">
<Label BorderThickness="0" Content="dsgsdgsgsgsdgsdg sd " FontSize="13.333" FontWeight="Bold" HorizontalAlignment="Left" />
</StackPanel>
<StackPanel Grid.Column="1" Grid.Row="1" Orientation="Horizontal" Background="#FF517823" HorizontalAlignment="Left" Width="70">
<Label Content="{Binding ItemPrice}" HorizontalAlignment="Left" FontSize="9.333" Width="45" />
<Label Content="грн." HorizontalAlignment="Left" FontSize="9.333" Width="25"/>
</StackPanel>
<StackPanel Grid.Column="2" Grid.Row="1" Orientation="Horizontal" Background="#FF214299" HorizontalAlignment="Left" Width="70">
<Label Content="{Binding Quantity}" HorizontalAlignment="Left" FontSize="9.333" Width="45" />
<Label Content="шт." HorizontalAlignment="Left" FontSize="9.333" Width="25"/>
</StackPanel>
<StackPanel Grid.Column="1" Grid.Row="2" Orientation="Horizontal" Background="#FF88B91E" HorizontalAlignment="Left" Width="70">
<Label Content="1С" HorizontalAlignment="Right" FontSize="9.333" Foreground="#FF8B8888" Width="45"/>
<Label Content="грн." HorizontalAlignment="Right" FontSize="9.333" Foreground="#FF8B8888" Width="25"/>
</StackPanel>
<StackPanel Grid.Column="2" Grid.Row="2" Orientation="Horizontal" Background="#FF228CBD" HorizontalAlignment="Left" Width="70">
<Label Content="1С" HorizontalAlignment="Right" FontSize="9.333" Foreground="#FF8B8888" Width="45"/>
<Label Content="шт." HorizontalAlignment="Right" FontSize="9.333" Foreground="#FF8B8888" Width="25"/>
</StackPanel>
<CheckBox Grid.Column="3" Grid.Row="1" HorizontalAlignment="Center" VerticalAlignment="Center"/>
<Button Grid.Column="3" Grid.Row="2" Background="{x:Null}" Content="Редакт." Foreground="#FF444343" Width="50" HorizontalAlignment="Center" VerticalAlignment="Center" />
<Label Grid.Column="4" Grid.RowSpan="2" Grid.Row="1" Background="#FFE08212" HorizontalContentAlignment="Stretch" />
</Grid>
If I have "Title" text (in red-colored cell) less than sum of 3 my fixed columns, everything is OK, but if a text larger I have problems with some paddings between columns (please see pictures)
So how can I resolve this problem?

I could reproduce your issue in a variety of cases when a Grid is used in a DataTemplate. I removed the StackPanel and used a TextBlock, then a a TextBlock hosted in a separate Grid, but all with the same result. I guess something is going wrong when WPF is determining the required size. I have often occurred this kind of strange behaviour in Grids (when part of an ItemTemplate). If you need a quick workaround then this should do the trick
<Grid.ColumnDefinitions>
<ColumnDefinition MinWidth="80" MaxWidth="80" />
<ColumnDefinition MinWidth="70" MaxWidth="70" />
<ColumnDefinition MinWidth="70" MaxWidth="70" />
<ColumnDefinition MinWidth="70" MaxWidth="70" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>

WPF: Create box with text in four corners

In WPF, I'm trying to create a button with four labels at each corner. It would look like a dice (die?) with text in the corners instead of dots.
This code doesn't work:
<Button HorizontalAlignment="Stretch" Background="Red" Height="100" >
<Grid ShowGridLines="True">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Label Grid.Row="0" Grid.Column="0" Content="TopLeft"/>
<Label Grid.Row="0" Grid.Column="1" Content="TopRight" HorizontalContentAlignment="Right" VerticalContentAlignment="Bottom" HorizontalAlignment="Right" VerticalAlignment="Bottom" />
<Label Grid.Row="1" Grid.Column="0" Content="BottomLeft"/>
<Label Grid.Row="1" Grid.Column="1" Content="BottomRight" HorizontalContentAlignment="Right" VerticalContentAlignment="Bottom" HorizontalAlignment="Right" VerticalAlignment="Bottom" />
</Grid>
</Button>
It mashes the text into the center of the grid instead of moving it to the corners. It seems like the grid is not taking up all the space in the button.
Any help appreciated. Thank you.

Set the VerticalContentAlignment and HorizontalContentAlignment for the Button to Stretch.
<Button HorizontalAlignment="Stretch" Background="Red" Height="100" HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch">
<Grid ShowGridLines="True" VerticalAlignment="Stretch" >
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Label Grid.Row="0" Grid.Column="0" Content="TopLeft"/>
<Label Grid.Row="0" Grid.Column="1" Content="TopRight" HorizontalContentAlignment="Right" VerticalContentAlignment="Bottom" HorizontalAlignment="Right" VerticalAlignment="Bottom" />
<Label Grid.Row="1" Grid.Column="0" Content="BottomLeft" VerticalContentAlignment="Bottom" />
<Label Grid.Row="1" Grid.Column="1" Content="BottomRight" HorizontalContentAlignment="Right" VerticalContentAlignment="Bottom" HorizontalAlignment="Right" VerticalAlignment="Bottom" />
</Grid>
</Button>

How to put two different textboxes into same level?

Right xaml code looks this way:
mc:Ignorable="d" d:DesignWidth="363" Height="628">
<Grid Style="{StaticResource ContentRoot}">
<ScrollViewer Margin="0,-105,-9,0">
<StackPanel MinWidth="200" HorizontalAlignment="Left" Width="474" Height="459">
</InlineUIContainer>
<Run Language="ru-ru"/>
<LineBreak/>
<Run Language="ru-ru" Text="Num1"/>
<LineBreak/>
<InlineUIContainer>
<TextBox d:DesignUseLayoutRounding="True"
Width="160"
UseLayoutRounding="True"
Text="Enter num"
TextWrapping="Wrap"
x:Name="TxtBlock_numRequest"
InputMethod.IsInputMethodEnabled="False"
Height="23"
AutoWordSelection="True"/>
</InlineUIContainer>
<LineBreak/>
<Run Language="ru-ru"/>
<LineBreak/>
<Run Language="ru-ru" Text="ID"/>
<Run Text=" "/>
<LineBreak/>
<InlineUIContainer>
<TextBox Width="160"
Text="Enter num"
TextWrapping="Wrap"
x:Name="TxtBlock_IDWork"
Height="23"/>
As you can there are two textboxes, which located one under other one, and I need to put them into same level, I tried it to via constructor, it simply don't do it in my particular case. To clearify I have added pictures.
And don't be afraid foreign inscriptiones, its doesn't matter.
I just don't know how to fix this, and I think it' related with StackPanel. Any ideas ?
UPD: All xaml code here http://snipt.org/Btff4/Default#expand
UPD: May be it possible to put one more stack panel rigt to existing one?

You are probably looking for Orientation attribute:
<StackPanel MinWidth="200" HorizontalAlignment="Left" Width="474" Height="459" Orientation="Horizontal">
Update
Adding a very basic example to illustrate how StackPanel works:
<Window x:Class="WpfTestBench.Stackpanel"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" SizeToContent="WidthAndHeight">
<StackPanel Orientation="Horizontal" Margin="10">
<TextBox Text="First textbox" Height="20" Margin="5, 0" />
<TextBox Text="Second textbox" Height="20" />
</StackPanel>
</Window>
Execution result:
Update
Adding XAML which allows to achieve desired layout:
<Window x:Class="WpfTestBench.Stackpanel"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Sample layout" SizeToContent="Height" Width="400">
<Grid Margin="10">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="50" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition />
</Grid.RowDefinitions>
<Label Grid.ColumnSpan="3" Grid.Row="0" Content="Задайте параметры заявок" FontWeight="Bold" FontSize="16" />
<Grid Grid.Column="0" Grid.Row="1">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="10" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Text="номер заявки" />
<TextBox Grid.Row="1" Text="Введите число" />
<TextBlock Grid.Row="3" Text="приоритет заявки" />
<ComboBox Grid.Row="4" SelectedIndex="0">
<ComboBoxItem Content="Высокий" />
<ComboBoxItem Content="Средний" />
<ComboBoxItem Content="Низкий" />
</ComboBox>
</Grid>
<Grid Grid.Column="2" Grid.Row="1">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="10" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Text="идентификатор вида работы" />
<TextBox Grid.Row="1" Text="Введите число" />
<TextBlock Grid.Row="3" Text="номер траектории" />
<TextBox Grid.Row="4" Text="Введите число" />
</Grid>
</Grid>
</Window>
Execution result:

You can use a StackPanel with Orientation="Horizontal", as a container. Something like:
<StackPanel Orientation="Horizontal">
<StackPanel>
<TextBlock>Label</TextBlock>
<TextBox Width="150"/>
</StackPanel>
<StackPanel>
<TextBlock>Label 2</TextBlock>
<TextBox Width="150"/>
</StackPanel>
</StackPanel>

I prefer Grid defintion than StakPanel. You can easily design your application with that method, just cut each area in many smaller area. Use Auto and * to define proportion.
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid Grid.Row="0">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Label Content="Label" Grid.Row="0" Grid.Column="0" HorizontalAlignment="Center" />
<Label Content="Label" Grid.Row="0" Grid.Column="1" HorizontalAlignment="Center" />
<TextBox Text="Text here !" Grid.Row="1" Grid.Column="0" />
<TextBox Text="Text here !" Grid.Row="1" Grid.Column="1" />
</Grid>
<Grid Grid.Row="1">
<Label Content="I need this kind of location" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Grid>
</Grid>

Grid should do what you need:
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="40"></RowDefinition>
<RowDefinition Height="40"></RowDefinition>
</Grid.RowDefinitions>
<TextBlock Name="lblTextBlock1" Text="Text Block" VerticalAlignment="Center" HorizontalAlignment="Center" />
<TextBox Text="TextBlock1" Grid.Row="1" Margin="5,0,0,0" MaxHeight="20" MinWidth="100" MaxLength="4" MaxWidth="40"></TextBox>
<TextBlock Grid.Column="1" Name="lblTextBlock2" Text="Text Block" VerticalAlignment="Center" HorizontalAlignment="Center" />
<TextBox Grid.Column="1" Text="TextBlock2" Grid.Row="1" Margin="5,0,0,0" MaxHeight="20" MinWidth="100" MaxLength="4" MaxWidth="40"></TextBox>
</Grid>

DockPanel Resizing and TextBox linebreak

I have a DockPanel with two Grids (DockPanel.Dock="Right/Left"). In the left i have a TreeView and in the right i have some TextBoxes. If i resize my window the panels resize proportinal.
My problem is, if i write long text in a TextBox the TextBox enlarge and hide my left DockPanel instead of a break the text.
I have set minwidth of the left DockPanel to '300' and set TextWrapping in the TextBoxes to 'wrap' but nothing helps.
Source:
<Grid Background="#FF58ACFC" Name="main">
<DockPanel>
<Grid DockPanel.Dock="Right" Margin="0,0,5,0">
<Grid.ColumnDefinitions>
<ColumnDefinition MinWidth="200" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="26"/>
<RowDefinition Height="26"/>
<RowDefinition Height="26"/>
<RowDefinition Height="60" />
<RowDefinition Height="26"/>
<RowDefinition />
</Grid.RowDefinitions>
<Label Content="Titel:" Grid.Row="0"/>
<TextBox Grid.Row="1" IsReadOnly="False">
<Label Content="Frage:" Grid.Row="2"/>
<TextBox Grid.Row="3" TextWrapping="Wrap" IsReadOnly="False" AcceptsReturn="True">
<Label Content="Antwort:" Grid.Row="4"/>
<TextBox Grid.Row="5" IsReadOnly="False" TextWrapping="Wrap" />
</Grid>
<Grid DockPanel.Dock="Left" Margin="5,0,0,0">
<DockPanel>
<Grid DockPanel.Dock="Left">
<DockPanel LastChildFill="True">
<Grid DockPanel.Dock="Top" Height="26">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Label Content="Kategorie" Grid.Column="0"/>
<Button Grid.Column="1" BorderThickness="0" HorizontalAlignment="Right">
</Grid>
<TreeView HorizontalAlignment="Stretch" VerticalAlignment="Stretch"Padding="0,0,15,0" />
</DockPanel>
</Grid>
<Grid DockPanel.Dock="Right">
<DockPanel LastChildFill="True">
<Grid DockPanel.Dock="Top" Height="26">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Label Content="Lernkarten" Grid.Column="0"/>
<Button Grid.Column="1" Width="26" Click="ButtonAddItem_Click">
</Grid>
<ListView />
</DockPanel>
</Grid>
</DockPanel>
</Grid>
</DockPanel>
</Grid>

That's pretty much why Dockpanels are useless :-)
I suggest using Grid..