private void CustomStackLayoutRenderer_PointerReleased(object sender, Windows.UI.Xaml.Input.PointerRoutedEventArgs e)
{
var pointerPoint = e.GetCurrentPoint(this);
point.Y = pointerPoint.Position.Y;
point.X = pointerPoint.Position.X;
var rowColumnIndex = SfDataGridHelpers.PointToCellRowColumnIndex(grid, point);
var model = (GridModel)grid.GetType().GetRuntimeProperties().FirstOrDefault(x => x.Name.Equals("GridModel")).GetValue(grid);
rowdata = SfDataGridHelpers.GetRowGenerator(grid).Items.FirstOrDefault(x => x.RowIndex == rowColumnIndex.RowIndex);
if (rowdata != null)
{
wholeRowElement = (VirtualizingCellsControl)rowdata.GetType().GetRuntimeFields().FirstOrDefault(x => x.Name.Equals("WholeRowElement")).GetValue(rowdata);
wholeRowElement.BackgroundColor = Xamarin.Forms.Color.White;
}
}
private void ExpandAndSelectDetailsView(SfDataGrid dataGrid, int parentRowIndex, int childRowIndex, string relationalColumn)
{
//Checks whether the given index is parent row index or not.
bool IsDetailsViewIndex = dataGrid.IsInDetailsViewIndex(parentRowIndex);
if (IsDetailsViewIndex == true)
{
return;
}
//Gets the record of the parent row index.
var record = dataGrid.View.Records[dataGrid.ResolveToRecordIndex(parentRowIndex)];
//Gets the DetailsViewManager by using Reflection.
var propertyInfo = dataGrid.GetType().GetField("DetailsViewManager", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
DetailsViewManager detailsViewManager = propertyInfo.GetValue(dataGrid) as DetailsViewManager;
// Checks whether the parent record has the child grid or not by getting the child source and its count.
var childSource = detailsViewManager.GetChildSource(record.Data, relationalColumn);
var GetChildSourceCount = detailsViewManager.GetType().GetMethod("GetChildSourceCount", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Static);
var ChildSourceCount = GetChildSourceCount.Invoke(detailsViewManager, new object[] { childSource });
if ((int)ChildSourceCount == 0)
{
return;
}
//Checks whether the record is Expanded or Collapsed.
//When it is in the collapsed state, you need to expand the particular DetailsView based on the index.
if (!record.IsExpanded)
{
dataGrid.ExpandDetailsViewAt(dataGrid.ResolveToRecordIndex(parentRowIndex));
}
//Gets the index of the DetailsView.
int index = 0;
foreach (var def in dataGrid.DetailsViewDefinition)
{
if (def.RelationalColumn == relationalColumn)
{
index = dataGrid.DetailsViewDefinition.IndexOf(def);
index = parentRowIndex + index + 1;
}
}
//Brings the parent row in the view.
var rowcolumnIndex = new RowColumnIndex(index, 1);
dataGrid.ScrollInView(rowcolumnIndex);
//Gets the DetailsViewDataGrid by passing the corresponding rowindex and relation name.
var detailsViewDataGrid = dataGrid.GetDetailsViewGrid(dataGrid.ResolveToRecordIndex(parentRowIndex), relationalColumn);
//Checks whether the given index is currently in view or not.
//When the specified index is not currently in view, you can bring that row in to the view by using the SfDataGrid.ScrollInView method.
var firstline = dataGrid.GetVisualContainer().ScrollRows.GetVisibleLines().FirstOrDefault(line => line.Region == ScrollAxisRegion.Body);
var lastline = dataGrid.GetVisualContainer().ScrollRows.GetVisibleLines().LastOrDefault(line => line.Region == ScrollAxisRegion.Body);
if (firstline.LineIndex >= index || lastline.LineIndex <= index)
{
//Brings the details view grid in to the view and sets the child grid's SelectedIndex as the ChildRowIndex.
if (record != null && record.IsExpanded)
{
if (detailsViewDataGrid == null)
{
detailsViewManager.BringIntoView(index);
detailsViewDataGrid = dataGrid.GetDetailsViewGrid(dataGrid.ResolveToRecordIndex(parentRowIndex), relationalColumn);
}
}
}
if (detailsViewDataGrid != null)
{
detailsViewDataGrid.SelectedIndex = childRowIndex;
}
}
/// <summary>
/// Возвращает <see cref="DetailsViewManager"/> таблицы
/// </summary>
/// <param name="grid">Таблица, объект которой нужно получить</param>
public static DetailsViewManager GetViewManager(this SfDataGrid grid)
{
FieldInfo propertyInfo = grid.GetType().GetField("DetailsViewManager", BindingFlags.Instance | BindingFlags.NonPublic);
return(propertyInfo?.GetValue(grid) as DetailsViewManager);
}
