Question

I am getting a compilation error as

Error 1 The type or namespace name ‘Converters’ could not be found (are you missing a using directive or an assembly reference?) G:\C#\Practice\DataGrid\DataGrid\obj\x86\Debug\MainWindow.g.cs 12 7 DataGrid

Below is my Xaml code, I am new to WPF please help me out. I have the converter Class.

<Window  x:Class="DataGrid.MainWindow "
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Height="500" Width="700"
xmlns:c="clr-namespace:Converters">
<Window.Resources>
   <c:BoolToStringConverter x:Key="BoolToStringConverter" />
</Window.Resources>
    <Grid>

    <Grid.RowDefinitions>
        <RowDefinition Height="59*" />
        <RowDefinition Height="402*" />
    </Grid.RowDefinitions>
    <StackPanel Margin="0,55,0,0" Grid.RowSpan="2">
        <DataGrid ItemsSource="{Binding Path=Courses}" AutoGenerateColumns="False" HorizontalAlignment="Left" Name="datagrid1" CanUserAddRows="False" HeadersVisibility="Column" RowDetailsVisibilityMode="Visible" VerticalScrollBarVisibility="Auto" CanUserSortColumns="True" CanUserResizeColumns="False" Height="339" Width="610">
            <DataGrid.Resources>
                <Style TargetType="{x:Type CheckBox}" x:Key="DataGridCheckBox">
                    <Setter Property="HorizontalAlignment" Value="Center" />
                    <Setter Property="HorizontalContentAlignment" Value="Center" />
                    <Setter Property="IsEnabled" Value="True" />
                    <Setter Property="Margin" Value="4" />
                    <Setter Property="VerticalAlignment" Value="Center" />
                    <Setter Property="VerticalContentAlignment" Value="Center" />
                </Style>
            </DataGrid.Resources>
            <DataGrid.Columns>
                <DataGridTemplateColumn Header="Course Title" Width="100">
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <StackPanel>
                                <TextBlock Text="{Binding Path=Code}" VerticalAlignment="Center" />
                            </StackPanel>
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                </DataGridTemplateColumn>
                <DataGridTemplateColumn Header="Course Description" Width="*">
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <StackPanel>
                                <TextBlock Text="{Binding Path=Descrption}" VerticalAlignment="Center" />
                            </StackPanel>
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                </DataGridTemplateColumn>
                <DataGridTemplateColumn Header="Required" Width="100">
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                                <TextBlock Text="{Binding Path=IsRequired, Converter={StaticResource BoolToStringConverter}}" 
                                       VerticalAlignment="Center" />
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                </DataGridTemplateColumn>
            </DataGrid.Columns>
        </DataGrid>
    </StackPanel>
    <StackPanel Margin="0,0,539,32">
        <TextBlock Text="Select Enroolment:" FontSize="15" 
                   Height="26"
                   Grid.RowSpan="1"
                   Width="134">
        </TextBlock>

    </StackPanel>
    <TextBlock DockPanel.Dock="Left"
               HorizontalAlignment="Left" 
               Text="Select Course:" 
               Width="139" FontSize="15" 
               Margin="0,32,0,0">
               </TextBlock>
    <ComboBox HorizontalAlignment="Right"
              Margin="0,0,69,33"
              Name="comboBox1"
              Width="476"
              Height="23"
              VerticalAlignment="Bottom" />
</Grid>

Answer 1

xmlns:c="clr-namespace:Converters"

You should check the namespace of your Converters class, that is what you should put in place of Converters. If Converters is your class, then you should put whatever it says after namespace in your .cs file.

Example:

 namepsace MyNamespace {
      public class Converters { }
 }

Then your XAML would be:

 xmlns:c="clr-namespace:MyNamespace"

Extra:
If you want to be more specific, you can add the assembly parameter as well.

 xmlns:window="clr-namespace:MyNamespace;assembly=MyNamespace"

Where Assembly can be found in your Build Properties (Right-click Project, Properties, Application, Assembly Information)

Your default namespace can also be found in the Build Properties as well.