RowDefinition Class
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RowDefinition Class

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Defines row-specific properties that apply to Grid elements.

System.Object
  System.Windows.DependencyObject
    System.Windows.Controls.RowDefinition

Namespace:  System.Windows.Controls
Assembly:  System.Windows (in System.Windows.dll)
XMLNS for XAML: Not mapped to an xmlns.

'Declaration
Public NotInheritable Class RowDefinition _
	Inherits DependencyObject
<RowDefinition .../>

The RowDefinition type exposes the following members.

  NameDescription
Public methodRowDefinitionInitializes a new instance of the RowDefinition class.
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  NameDescription
Public propertyActualHeightGets a value that represents the calculated height of the RowDefinition.
Public propertyDispatcherGets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
Public propertyHeightGets the calculated height of a RowDefinition element, or sets the GridLength value of a row that is defined by the RowDefinition.
Public propertyMaxHeightGets or sets a value that represents the maximum height of a RowDefinition.
Public propertyMinHeightGets or sets a value that represents the minimum allowed height of a RowDefinition.
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  NameDescription
Public methodCheckAccessDetermines whether the calling thread has access to this object. (Inherited from DependencyObject.)
Public methodClearValueClears the local value of a dependency property. (Inherited from DependencyObject.)
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetAnimationBaseValueReturns any base value established for a Windows Phone dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodGetValueReturns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodReadLocalValueReturns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
Public methodSetValueSets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Public fieldStatic memberHeightPropertyIdentifies the Height dependency property.
Public fieldStatic memberMaxHeightPropertyIdentifies the MaxHeight dependency property.
Public fieldStatic memberMinHeightPropertyIdentifies the MinHeight dependency property.
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You can set a RowDefinition for each row in a Grid. If you do not specify a RowDefinition, by default the Grid will contain a single row with star sized height.

To set a group of RowDefinition elements by using code, add the RowDefinition to a RowDefinitionCollection.

The RowDefinition class exposes only height properties. To set width properties in a Grid, create an instance of ColumnDefinition.

The following example uses three ColumnDefinitions and three RowDefinitions to create a grid that has nine cells, such as in a worksheet. Each cell contains a TextBlock element that represents data, and the top row contains a TextBlock with the ColumnSpan property applied. To show the boundaries of each cell, the ShowGridLines property is enabled.


<Grid Background="Transparent" VerticalAlignment="Top" HorizontalAlignment="Left" ShowGridLines="True" Width="350" Height="200">
    <Grid.ColumnDefinitions>
        <ColumnDefinition />
        <ColumnDefinition />
        <ColumnDefinition />
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition />
        <RowDefinition />
        <RowDefinition />
        <RowDefinition />
    </Grid.RowDefinitions>

    <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="20" FontWeight="Bold" Grid.ColumnSpan="3" Grid.Row="0">Expenses for 2007</TextBlock>
    <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="15" FontWeight="Bold" Grid.Row="1" Grid.Column="0">Travel</TextBlock>
    <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="15" FontWeight="Bold" Grid.Row="1" Grid.Column="1">Office Supplies</TextBlock>
    <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="15" FontWeight="Bold" Grid.Row="1" Grid.Column="2">Salary</TextBlock>
    <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Row="2" Grid.Column="0">20000</TextBlock>
    <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Row="2" Grid.Column="1">10000</TextBlock>
    <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Row="2" Grid.Column="2">50000</TextBlock>
    <TextBlock FontSize="16" FontWeight="Bold" Grid.ColumnSpan="3" Grid.Row="3">Total Expense: 80000</TextBlock>
</Grid>



Public Sub New()
    InitializeComponent()
    CreateGrid()
End Sub

Private Sub CreateGrid()
    ' Create the Grid 
    Dim myGrid As New Grid()
    myGrid.Width = 350
    myGrid.Height = 200
    myGrid.HorizontalAlignment = HorizontalAlignment.Left
    myGrid.VerticalAlignment = VerticalAlignment.Top
    myGrid.ShowGridLines = True
    Dim myBrush As New SolidColorBrush(Colors.White)
    myGrid.Background = myBrush

    ' Define the Columns 
    Dim colDef1 As New ColumnDefinition()
    Dim colDef2 As New ColumnDefinition()
    Dim colDef3 As New ColumnDefinition()
    myGrid.ColumnDefinitions.Add(colDef1)
    myGrid.ColumnDefinitions.Add(colDef2)
    myGrid.ColumnDefinitions.Add(colDef3)

    ' Define the Rows 
    Dim rowDef1 As New RowDefinition()
    Dim rowDef2 As New RowDefinition()
    Dim rowDef3 As New RowDefinition()
    Dim rowDef4 As New RowDefinition()
    myGrid.RowDefinitions.Add(rowDef1)
    myGrid.RowDefinitions.Add(rowDef2)
    myGrid.RowDefinitions.Add(rowDef3)
    myGrid.RowDefinitions.Add(rowDef4)

    ' Add the first text cell to the Grid 
    Dim txt1 As New TextBlock()
    txt1.Text = "Expenses for 2007"
    txt1.FontSize = 20
    txt1.FontWeight = FontWeights.Bold
    Grid.SetColumnSpan(txt1, 3)
    Grid.SetRow(txt1, 0)
    txt1.HorizontalAlignment = HorizontalAlignment.Center
    txt1.VerticalAlignment = VerticalAlignment.Center

    ' Add the second text cell to the Grid 
    Dim txt2 As New TextBlock()
    txt2.Text = "Travel"
    txt2.FontSize = 15
    txt2.FontWeight = FontWeights.Bold
    Grid.SetRow(txt2, 1)
    Grid.SetColumn(txt2, 0)
    txt2.HorizontalAlignment = HorizontalAlignment.Center
    txt2.VerticalAlignment = VerticalAlignment.Center

    ' Add the third text cell to the Grid 
    Dim txt3 As New TextBlock()
    txt3.Text = "Office Supplies"
    txt3.FontSize = 15
    txt3.FontWeight = FontWeights.Bold
    Grid.SetRow(txt3, 1)
    Grid.SetColumn(txt3, 1)
    txt3.HorizontalAlignment = HorizontalAlignment.Center
    txt3.VerticalAlignment = VerticalAlignment.Center

    ' Add the fourth text cell to the Grid 
    Dim txt4 As New TextBlock()
    txt4.Text = "Salary"
    txt4.FontSize = 15
    txt4.FontWeight = FontWeights.Bold
    Grid.SetRow(txt4, 1)
    Grid.SetColumn(txt4, 2)
    txt4.HorizontalAlignment = HorizontalAlignment.Center
    txt4.VerticalAlignment = VerticalAlignment.Center

    ' Add the sixth text cell to the Grid 
    Dim txt5 As New TextBlock()
    Dim db1 As New Double()
    db1 = 20000
    txt5.Text = db1.ToString()
    Grid.SetRow(txt5, 2)
    Grid.SetColumn(txt5, 0)
    txt5.HorizontalAlignment = HorizontalAlignment.Center
    txt5.VerticalAlignment = VerticalAlignment.Center

    ' Add the seventh text cell to the Grid 
    Dim txt6 As New TextBlock()
    Dim db2 As New Double()
    db2 = 10000
    txt6.Text = db2.ToString()
    Grid.SetRow(txt6, 2)
    Grid.SetColumn(txt6, 1)
    txt6.HorizontalAlignment = HorizontalAlignment.Center
    txt6.VerticalAlignment = VerticalAlignment.Center

    ' Add the final text cell to the Grid 
    Dim txt7 As New TextBlock()
    Dim db3 As New Double()
    db3 = 50000
    txt7.Text = db3.ToString()
    Grid.SetRow(txt7, 2)
    Grid.SetColumn(txt7, 2)
    txt7.HorizontalAlignment = HorizontalAlignment.Center
    txt7.VerticalAlignment = VerticalAlignment.Center

    ' Total all Data and Span Three Columns 
    Dim txt8 As New TextBlock()
    txt8.FontSize = 16
    txt8.FontWeight = FontWeights.Bold
    txt8.Text = "Total Units: " + (db1 + db2 + db3).ToString()
    Grid.SetRow(txt8, 3)
    Grid.SetColumnSpan(txt8, 3)

    ' Add the TextBlock elements to the Grid Children collection 
    myGrid.Children.Add(txt1)
    myGrid.Children.Add(txt2)
    myGrid.Children.Add(txt3)
    myGrid.Children.Add(txt4)
    myGrid.Children.Add(txt5)
    myGrid.Children.Add(txt6)
    myGrid.Children.Add(txt7)
    myGrid.Children.Add(txt8)

    LayoutRoot.Children.Add(myGrid)

End Sub


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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