Article
11/17/2011

Walkthrough: Customizing the DataGrid Control Using Properties

Microsoft Silverlight will reach end of support after October 2021. Learn more.

The Silverlight DataGrid control supports common table formatting options, such as alternating row backgrounds and the ability to show or hide headers, gridlines, and scroll bars. These customizations can be made by setting DataGrid properties. Properties can be set in XAML at design time, or set in procedural code at run time.

This walkthrough illustrates the following tasks:

Creating a collection of data objects.
Creating the user interface to display the data.
Setting the data source for the list.
Creating the user interface for setting the DataGrid options.
Adding procedural code to modify DataGrid properties.

To view a running sample of the DataGrid control, click the following link.

Run this sample

Prerequisites

You need the following components to complete this walkthrough:

Silverlight 5.
Silverlight Tools for Visual Studio 2010.
Visual Studio 2010.

All of the Silverlight software is available from the Silverlight download site.

Creating a Silverlight Project

The first step is to create a Silverlight project.

To create a Silverlight project

Create a new Silverlight Application project named DGBasicCustomization in Visual Basic or Visual C#. Leave the default selection Host the Silverlight application in a new Web site option checked. For more information, see How to: Create a New Silverlight Project.

Creating a Collection of Data to Display

Next, you create a collection of Task objects to be displayed in the DataGrid.

To create a collection of Task objects

Add a class named Task to the DGBasicCustomization project.

Add the following code to the Task class.

This code contains the Task class that represents the data objects to display in the DataGrid control.

Private m_Name As String
Private m_DueDate As Date
Private m_Complete As Boolean
Private m_Notes As String

Property Name() As String
    Get
        Return Me.m_Name
    End Get
    Set(ByVal value As String)
        Me.m_Name = value
    End Set
End Property

Property DueDate() As Date
    Get
        Return Me.m_DueDate
    End Get
    Set(ByVal value As Date)
        Me.m_DueDate = value
    End Set
End Property

Property Complete() As Boolean
    Get
        Return Me.m_Complete
    End Get
    Set(ByVal value As Boolean)
        Me.m_Complete = value
    End Set
End Property

Property Notes() As String
    Get
        Return Me.m_Notes
    End Get
    Set(ByVal value As String)
        Me.m_Notes = value
    End Set
End Property

public string Name { get; set; }
public DateTime DueDate { get; set; }
public bool Complete { get; set; }
public string Notes { get; set; }

Open MainPage.xaml.vb or MainPage.xaml.cs.

In the MainPage class constructor after the InitializeComponent method, add the following code.

This code creates a generic List<T> named taskList and uses a loop to populate the collection with Task objects. The taskList is then set as the ItemsSource of the DataGrid.

' Create a list to store task data.
Dim taskList As List(Of Task) = New List(Of Task)
Dim itemsCount As Integer = 10
' Generate some task data and add it to the task list.
For index = 1 To itemsCount
    taskList.Add(New Task() With _
                 {.Name = "Task " & index.ToString(), _
                   .DueDate = Date.Now.AddDays(index), _
                   .Complete = (index Mod 3 = 0), _
                   .Notes = "Task " & index.ToString() & " is due on " & Date.Now.AddDays(index) & ". Lorum ipsum..." _
                 })
Next
Me.dataGrid1.ItemsSource = taskList

// Create a list to store task data.
List<Task> taskList = new List<Task>();
int itemsCount = 10;
// Generate some task data and add it to the task list.
for (int i = 1; i <= itemsCount; i++)
{
    taskList.Add(new Task()
    {
        Name = "Task " + i.ToString(),
        DueDate = DateTime.Now.AddDays(i),
        Complete = (i % 3 == 0),
        Notes = "Task " + i.ToString() + " is due on " 
              + DateTime.Now.AddDays(i) + ". Lorum ipsum..."
    });
}
this.dataGrid1.ItemsSource = taskList;

Creating the User Interface for the Task List

Next, you create the user interface for the task list by adding a DataGrid control to the page.

To create the user interface for the task list

In the DGBasicCustomization project, add a reference to the System.Windows.Controls.Data assembly. For more information, see How to: Add a DataGrid Control to a Page.
Open MainPage.xaml.
In the <UserControl> start tag, add the following XAML.

This XAML maps the sdk prefix to the Silverlight SDK namespace, as described in Prefixes and Mappings for Silverlight Libraries.

xmlns:sdk="https://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
In the <UserControl> start tag, change the value of the Width property to 600, and the value of the Height property to 700.

After the <UserControl> start tag, add the following XAML, replacing the existing <Grid> tags.

This XAML adds a StackPanel for layout purposes and a DataGrid named dataGrid1 to display the list of tasks.

<StackPanel x:Name="LayoutRoot" Background="White" Margin="5">


...


    <sdk:DataGrid x:Name="dataGrid1" Height="350" Width="540" 
                   HorizontalAlignment="Left" >
    </sdk:DataGrid>
</StackPanel>

Build and run the application.

When the application is running, you will see a DataGrid displaying the tasks in the taskList collection with its default appearance and behavior.

Creating the User Interface for the DataGrid Options

Next, you create the user interface for the DataGrid options.

To create the user interface for the DataGrid options

Open MainPage.xaml.

After the <StackPanel> start tag, add the following XAML.

This XAML adds selection controls that you will use to modify properties of the DataGrid at run time.

<StackPanel Margin="0,0,0,5">
    <StackPanel Orientation="Horizontal">
        <Border BorderBrush="Black" BorderThickness="1" Padding="3" Width="180">
            <StackPanel>
                <TextBlock Text="DataGrid Options" FontSize="12" />
                <CheckBox Content="Grid is read-only" 
                          Checked="cbReadOnly_Changed" Unchecked="cbReadOnly_Changed" />
                <CheckBox Content="Freeze first column" 
                          Checked="cbFreezeColumn_Changed" Unchecked="cbFreezeColumn_Changed"/>
                <CheckBox Content="Hide first column" 
                          Checked="cbHideColumn_Changed" Unchecked="cbHideColumn_Changed"/>
                <CheckBox Content="Single Row Selection"
                          Checked="cbSelectionMode_Changed" Unchecked="cbSelectionMode_Changed" />
                <TextBlock Text="Column Options" FontSize="12" />
                <CheckBox Content="Allow Column Reordering" IsChecked="true" 
                          Checked="cbColReorder_Changed" Unchecked="cbColReorder_Changed"/>
                <CheckBox Content="Allow Column Resizing" IsChecked="true"
                          Checked="cbColResize_Changed" Unchecked="cbColResize_Changed"/>
                <CheckBox Content="Allow Column Sorting" IsChecked="true"
                          Checked="cbColSort_Changed" Unchecked="cbColSort_Changed"/>
                <TextBlock Text="Scroll Bar Options" FontSize="12" />
                <CheckBox Content="Vertical Scroll Bars" IsThreeState="True" IsChecked="" 
                          Checked="cbVerticalScroll_Changed" Unchecked="cbVerticalScroll_Changed" 
                          Indeterminate="cbVerticalScroll_Changed" />
                <CheckBox Content="Horizontal Scroll Bars" IsThreeState="True" IsChecked=""
                          Checked="cbHorizontalScroll_Changed" Unchecked="cbHorizontalScroll_Changed" 
                          Indeterminate="cbHorizontalScroll_Changed"/>
            </StackPanel>
        </Border>
        <Border BorderBrush="Black" BorderThickness="1" Padding="3" Width="180">
            <StackPanel>
                <TextBlock Text="Alternating Row Background" FontSize="12" />
                <ComboBox SelectionChanged="cbAltRowBrush_SelectionChanged">
                    <ComboBoxItem Content="Default" IsSelected="True" />
                    <ComboBoxItem Content="Custom" />
                    <ComboBoxItem Content="Null" />
                </ComboBox>
                <TextBlock Text="Row Background" FontSize="12" />
                <ComboBox SelectionChanged="cbRowBrush_SelectionChanged">
                    <ComboBoxItem Content="Default" IsSelected="True" />
                    <ComboBoxItem Content="Custom" />
                    <ComboBoxItem Content="Null" />
                </ComboBox>
                <TextBlock Text="Header Visibility" FontSize="12" />
                <ComboBox SelectionChanged="cbHeaders_SelectionChanged">
                    <ComboBoxItem Content="All"/>
                    <ComboBoxItem Content="Column (Default)" IsSelected="True"/>
                    <ComboBoxItem Content="Row"/>
                    <ComboBoxItem Content="None"/>
                </ComboBox>
                <TextBlock Text="Grid Lines Visibility" FontSize="12" />
                <ComboBox SelectionChanged="cbGridLines_SelectionChanged">
                    <ComboBoxItem Content="All"/>
                    <ComboBoxItem Content="Vertical (Default)" IsSelected="True"/>
                    <ComboBoxItem Content="Horizontal"/>
                    <ComboBoxItem Content="None"/>
                </ComboBox>
                <TextBlock Text="Custom Grid Lines" FontSize="12" />
                <CheckBox Content="Vertical" 
                          Checked="cbCustomGridLineVert_Changed" 
                          Unchecked="cbCustomGridLineVert_Changed"/>
                <CheckBox Content="Horizontal" 
                          Checked="cbCustomGridLineHorz_Changed" 
                          Unchecked="cbCustomGridLineHorz_Changed"/>
            </StackPanel>
        </Border>
    </StackPanel>
</StackPanel>

Setting the DataGrid Properties in Code

Next, you will add code to handle changes to the user interface controls and set DataGrid properties.

To set DataGrid properties in code

Open MainPage.xaml.vb or MainPage.xaml.cs.

After the MainPage class constructor, add the following code.

This code handles change events for the DataGrid options user interface controls that you added in the previous section. When an option is changed, the corresponding DataGrid property is set.

' READ ONLY
Private Sub cbReadOnly_Changed(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As CheckBox = sender
    If Me.dataGrid1 IsNot Nothing Then
        Me.dataGrid1.IsReadOnly = cb.IsChecked
    End If
End Sub
' FREEZE COLUMN
Private Sub cbFreezeColumn_Changed(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As CheckBox = sender
    If Me.dataGrid1 IsNot Nothing Then
        If cb.IsChecked = True Then
            Me.dataGrid1.FrozenColumnCount = 1
        ElseIf cb.IsChecked = False Then
            Me.dataGrid1.FrozenColumnCount = 0
        End If
    End If
End Sub
' HIDE COLUMN
Private Sub cbHideColumn_Changed(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As CheckBox = sender
    If Me.dataGrid1 IsNot Nothing Then
        If cb.IsChecked = True Then
            Me.dataGrid1.Columns(0).Visibility = Windows.Visibility.Collapsed
        ElseIf cb.IsChecked = False Then
            Me.dataGrid1.Columns(0).Visibility = Windows.Visibility.Visible
        End If
    End If
End Sub
' SELECTION MODE
Private Sub cbSelectionMode_Changed(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As CheckBox = sender
    If Me.dataGrid1 IsNot Nothing Then
        If cb.IsChecked = True Then
            Me.dataGrid1.SelectionMode = DataGridSelectionMode.Single
        ElseIf cb.IsChecked = False Then
            Me.dataGrid1.SelectionMode = DataGridSelectionMode.Extended
        End If
    End If
End Sub
' COLUMN OPTIONS
Private Sub cbColReorder_Changed(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As CheckBox = sender
    If Me.dataGrid1 IsNot Nothing Then
        Me.dataGrid1.CanUserReorderColumns = cb.IsChecked
    End If
End Sub
Private Sub cbColResize_Changed(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As CheckBox = sender
    If Me.dataGrid1 IsNot Nothing Then
        Me.dataGrid1.CanUserResizeColumns = cb.IsChecked
    End If
End Sub
Private Sub cbColSort_Changed(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As CheckBox = sender
    If Me.dataGrid1 IsNot Nothing Then
        Me.dataGrid1.CanUserSortColumns = cb.IsChecked
    End If
End Sub
' SCROLL BARS VISIBILITY
Private Sub cbVerticalScroll_Changed(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As CheckBox = sender
    If Me.dataGrid1 IsNot Nothing Then
        If cb.IsChecked = True Then
            Me.dataGrid1.VerticalScrollBarVisibility = ScrollBarVisibility.Visible
        ElseIf cb.IsChecked = False Then
            Me.dataGrid1.VerticalScrollBarVisibility = ScrollBarVisibility.Hidden
        Else
            Me.dataGrid1.VerticalScrollBarVisibility = ScrollBarVisibility.Auto
        End If
    End If
End Sub
Private Sub cbHorizontalScroll_Changed(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As CheckBox = sender
    If Me.dataGrid1 IsNot Nothing Then
        If cb.IsChecked = True Then
            Me.dataGrid1.HorizontalScrollBarVisibility = ScrollBarVisibility.Visible
        ElseIf cb.IsChecked = False Then
            Me.dataGrid1.HorizontalScrollBarVisibility = ScrollBarVisibility.Hidden
        Else
            Me.dataGrid1.HorizontalScrollBarVisibility = ScrollBarVisibility.Auto
        End If
    End If
End Sub
' ROW BRUSH
Private Sub cbAltRowBrush_SelectionChanged(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As ComboBox = sender
    Dim cbi As ComboBoxItem = cb.SelectedItem
    If Me.dataGrid1 IsNot Nothing Then
        If cbi.Content.ToString() = "Custom" Then
            Me.dataGrid1.AlternatingRowBackground = New SolidColorBrush(Color.FromArgb(255, 130, 175, 200))
        ElseIf cbi.Content.ToString() = "Default" Then
            Me.dataGrid1.AlternatingRowBackground = New SolidColorBrush(Color.FromArgb(37, 233, 238, 244))
        ElseIf cbi.Content.ToString() = "Null" Then
            Me.dataGrid1.AlternatingRowBackground = Nothing
        End If
    End If
End Sub
Private Sub cbRowBrush_SelectionChanged(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As ComboBox = sender
    Dim cbi As ComboBoxItem = cb.SelectedItem
    If Me.dataGrid1 IsNot Nothing Then
        If cbi.Content.ToString() = "Custom" Then
            Me.dataGrid1.RowBackground = New SolidColorBrush(Color.FromArgb(255, 135, 185, 195))
        ElseIf cbi.Content.ToString() = "Default" Then
            Me.dataGrid1.RowBackground = New SolidColorBrush(Color.FromArgb(0, 255, 255, 255))
        ElseIf cbi.Content.ToString() = "Null" Then
            Me.dataGrid1.RowBackground = Nothing
        End If
    End If
End Sub
' HEADERS VISIBILITY
Private Sub cbHeaders_SelectionChanged(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As ComboBox = sender
    Dim cbi As ComboBoxItem = cb.SelectedItem
    If Me.dataGrid1 IsNot Nothing Then
        If cbi.Content.ToString() = "All" Then
            Me.dataGrid1.HeadersVisibility = DataGridHeadersVisibility.All
        ElseIf cbi.Content.ToString() = "Column (Default)" Then
            Me.dataGrid1.HeadersVisibility = DataGridHeadersVisibility.Column
        ElseIf cbi.Content.ToString() = "Row" Then
            Me.dataGrid1.HeadersVisibility = DataGridHeadersVisibility.Row
        Else
            Me.dataGrid1.HeadersVisibility = DataGridHeadersVisibility.None
        End If
    End If
End Sub
' GRIDLINES VISIBILITY
Private Sub cbGridLines_SelectionChanged(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As ComboBox = sender
    Dim cbi As ComboBoxItem = cb.SelectedItem
    If Me.dataGrid1 IsNot Nothing Then
        If cbi.Content.ToString() = "All" Then
            Me.dataGrid1.GridLinesVisibility = DataGridGridLinesVisibility.All
        ElseIf cbi.Content.ToString() = "Vertical (Default)" Then
            Me.dataGrid1.GridLinesVisibility = DataGridGridLinesVisibility.Vertical
        ElseIf cbi.Content.ToString() = "Horizontal" Then
            Me.dataGrid1.GridLinesVisibility = DataGridGridLinesVisibility.Horizontal
        Else
            Me.dataGrid1.GridLinesVisibility = DataGridGridLinesVisibility.None
        End If
    End If
End Sub
' CUSTOM GRIDLINES
Private Sub cbCustomGridLineVert_Changed(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As CheckBox = sender
    If Me.dataGrid1 IsNot Nothing Then
        If cb.IsChecked = True Then
            Me.dataGrid1.VerticalGridLinesBrush = New SolidColorBrush(Colors.Blue)
        ElseIf cb.IsChecked = False Then
            Me.dataGrid1.VerticalGridLinesBrush = New SolidColorBrush(Color.FromArgb(255, 223, 227, 230))
        End If
    End If
End Sub
Private Sub cbCustomGridLineHorz_Changed(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    Dim cb As CheckBox = sender
    If Me.dataGrid1 IsNot Nothing Then
        If cb.IsChecked = True Then
            Me.dataGrid1.HorizontalGridLinesBrush = New SolidColorBrush(Colors.Blue)
        ElseIf cb.IsChecked = False Then
            Me.dataGrid1.HorizontalGridLinesBrush = New SolidColorBrush(Color.FromArgb(255, 223, 227, 230))
        End If
    End If
End Sub

// READ ONLY
private void cbReadOnly_Changed(object sender, RoutedEventArgs e)
{
    CheckBox cb = sender as CheckBox;
    if (this.dataGrid1 != null)
        this.dataGrid1.IsReadOnly = (bool)cb.IsChecked;
}
// FREEZE COLUMN
private void cbFreezeColumn_Changed(object sender, RoutedEventArgs e)
{
    CheckBox cb = sender as CheckBox;
    if (this.dataGrid1 != null)
    {
        if (cb.IsChecked == true)
            this.dataGrid1.FrozenColumnCount = 1;
        else if (cb.IsChecked == false)
            this.dataGrid1.FrozenColumnCount = 0;
    }
}
// HIDE COLUMN
private void cbHideColumn_Changed(object sender, RoutedEventArgs e)
{
    CheckBox cb = sender as CheckBox;
    if (this.dataGrid1 != null)
    {
        if (cb.IsChecked == true)
            this.dataGrid1.Columns[0].Visibility = Visibility.Collapsed;
        else if (cb.IsChecked == false)
            this.dataGrid1.Columns[0].Visibility = Visibility.Visible;
    }
}
// SELECTION MODE
private void cbSelectionMode_Changed(object sender, RoutedEventArgs e)
{
    CheckBox cb = sender as CheckBox;
    if (this.dataGrid1 != null)
    {
        if (cb.IsChecked == true)
            this.dataGrid1.SelectionMode = DataGridSelectionMode.Single;
        else if (cb.IsChecked == false)
            this.dataGrid1.SelectionMode = DataGridSelectionMode.Extended;
    }
}
// COLUMN OPTIONS
private void cbColReorder_Changed(object sender, RoutedEventArgs e)
{
    CheckBox cb = sender as CheckBox;
    if (this.dataGrid1 != null)
        this.dataGrid1.CanUserReorderColumns = (bool)cb.IsChecked;
}
private void cbColResize_Changed(object sender, RoutedEventArgs e)
{
    CheckBox cb = sender as CheckBox;
    if (this.dataGrid1 != null)
        this.dataGrid1.CanUserResizeColumns = (bool)cb.IsChecked;
}
private void cbColSort_Changed(object sender, RoutedEventArgs e)
{
    CheckBox cb = sender as CheckBox;
    if (this.dataGrid1 != null)
        this.dataGrid1.CanUserSortColumns = (bool)cb.IsChecked;
}
// SCROLL BARS VISIBILITY
private void cbVerticalScroll_Changed(object sender, RoutedEventArgs e)
{
    CheckBox cb = sender as CheckBox;
    if (this.dataGrid1 != null)
    {
        if (cb.IsChecked == true)
            this.dataGrid1.VerticalScrollBarVisibility = ScrollBarVisibility.Visible;
        else if (cb.IsChecked == false)
            this.dataGrid1.VerticalScrollBarVisibility = ScrollBarVisibility.Hidden;
        else 
            this.dataGrid1.VerticalScrollBarVisibility = ScrollBarVisibility.Auto;
    }
}
private void cbHorizontalScroll_Changed(object sender, RoutedEventArgs e)
{
    CheckBox cb = sender as CheckBox;
    if (this.dataGrid1 != null)
    {
        if (cb.IsChecked == true)
            this.dataGrid1.HorizontalScrollBarVisibility = ScrollBarVisibility.Visible;
        else if (cb.IsChecked == false)
            this.dataGrid1.HorizontalScrollBarVisibility = ScrollBarVisibility.Hidden;
        else 
            this.dataGrid1.HorizontalScrollBarVisibility = ScrollBarVisibility.Auto;
    }

}
// ROW BRUSH
private void cbAltRowBrush_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    ComboBoxItem cbi = ((ComboBox)sender).SelectedItem as ComboBoxItem;

    if (this.dataGrid1 != null)
    {
        if (cbi.Content.ToString() == "Custom")
            this.dataGrid1.AlternatingRowBackground = new SolidColorBrush(Color.FromArgb(255, 130, 175, 200));
        else if (cbi.Content.ToString() == "Default")
            this.dataGrid1.AlternatingRowBackground = new SolidColorBrush(Color.FromArgb(37, 233, 238, 244));
        else if (cbi.Content.ToString() == "Null")
            this.dataGrid1.AlternatingRowBackground = null;
    }
}
private void cbRowBrush_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    ComboBoxItem cbi = ((ComboBox)sender).SelectedItem as ComboBoxItem;
    if (this.dataGrid1 != null)
    {
        if (cbi.Content.ToString() == "Custom")
            this.dataGrid1.RowBackground = new SolidColorBrush(Color.FromArgb(255, 135, 185, 195));
        else if (cbi.Content.ToString() == "Default")
            this.dataGrid1.RowBackground = new SolidColorBrush(Color.FromArgb(00, 255, 255, 255));
        else if (cbi.Content.ToString() == "Null")
            this.dataGrid1.RowBackground = null;
    }
}
// HEADERS VISIBILITY
private void cbHeaders_SelectionChanged(object sender, RoutedEventArgs e)
{
    ComboBoxItem cbi = ((ComboBox)sender).SelectedItem as ComboBoxItem;
    if (this.dataGrid1 != null)
    {
        if (cbi.Content.ToString() == "All")
            this.dataGrid1.HeadersVisibility = DataGridHeadersVisibility.All;
        else if (cbi.Content.ToString() == "Column (Default)")
            this.dataGrid1.HeadersVisibility = DataGridHeadersVisibility.Column;
        else if (cbi.Content.ToString() == "Row")
            this.dataGrid1.HeadersVisibility = DataGridHeadersVisibility.Row;
        else
            this.dataGrid1.HeadersVisibility = DataGridHeadersVisibility.None;
    }

}
// GRIDLINES VISIBILITY
private void cbGridLines_SelectionChanged(object sender, RoutedEventArgs e)
{
    ComboBoxItem cbi = ((ComboBox)sender).SelectedItem as ComboBoxItem;
    if (this.dataGrid1 != null)
    {
        if (cbi.Content.ToString() == "All")
            this.dataGrid1.GridLinesVisibility = DataGridGridLinesVisibility.All;
        else if (cbi.Content.ToString() == "Vertical (Default)")
            this.dataGrid1.GridLinesVisibility = DataGridGridLinesVisibility.Vertical;
        else if (cbi.Content.ToString() == "Horizontal")
            this.dataGrid1.GridLinesVisibility = DataGridGridLinesVisibility.Horizontal;
        else
            this.dataGrid1.GridLinesVisibility = DataGridGridLinesVisibility.None;
    }

}
// CUSTOM GRIDLINES
private void cbCustomGridLineVert_Changed(object sender, RoutedEventArgs e)
{
    CheckBox cb = sender as CheckBox;
    if (this.dataGrid1 != null)
    {
        if (cb.IsChecked == true)
            this.dataGrid1.VerticalGridLinesBrush = new SolidColorBrush(Colors.Blue);
        else 
            this.dataGrid1.VerticalGridLinesBrush = new SolidColorBrush(Color.FromArgb(255, 223, 227, 230));
    }
}
private void cbCustomGridLineHorz_Changed(object sender, RoutedEventArgs e)
{
    CheckBox cb = sender as CheckBox;
    if (this.dataGrid1 != null)
    {
        if (cb.IsChecked == true)
            this.dataGrid1.HorizontalGridLinesBrush = new SolidColorBrush(Colors.Blue);
        else
            this.dataGrid1.HorizontalGridLinesBrush = new SolidColorBrush(Color.FromArgb(255, 223, 227, 230));
    }
}

Build and run the application.

When the application runs, you will see a DataGrid that displays the tasks in the taskList collection. In addition, you will see options for dynamically modifying the appearance and behavior of the DataGrid control.
While the application is running, change various options and view the effect on the appearance and behavior of the DataGrid control.

Next Steps

You typically set DataGrid properties in XAML if you do not have to set them dynamically at run time. To see the XAML syntax to set a property, see the XAML Attribute Usage section of the DataGrid property's documentation.

You can also customize a DataGrid by applying styles and templates to the control. Styles and templates enable more customization of the control than is allowed by setting properties. To learn more about how to apply styles and templates to a control, see Control Customization and DataGrid Styles and Templates.