/// <summary>
/// Recomputes rows and update children.
/// </summary>
private void InvalidateGridParameters()
{
RowDefinitionCollection rowCollection = RowDefinitions;
UIElementCollection children = Children;
// Determine how many rows we need
int remainder;
int neededRowCount = Math.DivRem(children.Count, 2, out remainder) + remainder;
int currentRowCount = rowCollection.Count;
int deltaRowCount = neededRowCount - currentRowCount;
// Add/remove rows
if (deltaRowCount > 0)
{
for (int i = 0; i < deltaRowCount; i++)
{
rowCollection.Add(new RowDefinition {
Height = new GridLength(0.0, GridUnitType.Auto)
});
}
}
else if (deltaRowCount < 0)
{
rowCollection.RemoveRange(currentRowCount + deltaRowCount, -deltaRowCount);
}
// Update Grid.Row and Grid.Column dependency properties on each child control
int row = 0;
int column = 0;
foreach (UIElement element in children)
{
element.SetValue(ColumnProperty, column);
element.SetValue(RowProperty, row);
if (column == 0 && GetUseFullRow(element))
{
element.SetValue(ColumnSpanProperty, 2);
row++;
}
else
{
column++;
if (column > 1)
{
column = 0;
row++;
}
}
}
}
private void InvalidateGridParameters()
{
RowDefinitionCollection rowCollection = RowDefinitions;
UIElementCollection children = Children;
int remainder;
int neededRowCount = Math.DivRem(children.Count, 2, out remainder);
if (remainder > 0)
{
neededRowCount++;
}
int currentRowCount = rowCollection.Count;
int deltaRowCount = neededRowCount - currentRowCount;
if (deltaRowCount > 0)
{
for (int i = 0; i < deltaRowCount; i++)
{
rowCollection.Add(new RowDefinition {
Height = new GridLength(0.0, GridUnitType.Auto)
});
}
}
else if (deltaRowCount < 0)
{
rowCollection.RemoveRange(currentRowCount + deltaRowCount, -deltaRowCount);
}
int row = 0;
int column = 0;
foreach (UIElement element in children)
{
element.SetValue(Grid.ColumnProperty, column);
element.SetValue(Grid.RowProperty, row);
column++;
if (column > 1)
{
column = 0;
row++;
}
}
}
