private static void OnHeaderStylePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DataGridRowGroupHeader groupHeader = d as DataGridRowGroupHeader;
if (groupHeader.HeaderElement != null)
{
groupHeader.HeaderElement.EnsureStyle(e.OldValue as Style);
}
}
private static void OnSublevelIndentPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DataGridRowGroupHeader groupHeader = d as DataGridRowGroupHeader;
double newValue = (double)e.NewValue;
// We don't need to revert to the old value if our input is bad because we never read this property value
if (double.IsNaN(newValue))
{
throw DataGridError.DataGrid.ValueCannotBeSetToNAN("SublevelIndent");
}
else if (double.IsInfinity(newValue))
{
throw DataGridError.DataGrid.ValueCannotBeSetToInfinity("SublevelIndent");
}
else if (newValue < 0)
{
throw DataGridError.DataGrid.ValueMustBeGreaterThanOrEqualTo("value", "SublevelIndent", 0);
}
if (groupHeader.OwningGrid != null)
{
groupHeader.OwningGrid.OnSublevelIndentUpdated(groupHeader, newValue);
}
}
private static void OnPropertyValueChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DataGridRowGroupHeader groupHeader = d as DataGridRowGroupHeader;
groupHeader.UpdateTitleElements();
}
/// <summary>
/// Initializes a new instance of the <see cref="DataGridRowGroupHeaderEventArgs"/> class.
/// </summary>
/// <param name="rowGroupHeader">The row group header that the event occurs for.</param>
public DataGridRowGroupHeaderEventArgs(DataGridRowGroupHeader rowGroupHeader)
{
this.RowGroupHeader = rowGroupHeader;
}