/// <summary>
/// Invalidates aggregate results by assigning <see cref="Constants.AggregateCalculatingPlaceHolder"/> value.
/// </summary>
/// <param name="grid">The grid control.</param>
/// <param name="aggregateDefinitions">The aggregate definition collection.</param>
public static void InvalidateAggregateResults(GridViewDataControl grid, IList<AggregateDefinition> aggregateDefinitions = null)
{
if (grid == null)
return;
if (aggregateDefinitions == null)
{
foreach (var column in grid.Columns)
{
foreach (var aggregateFunction in column.AggregateFunctions)
{
((AggregateFunction<object, object>)aggregateFunction)
.AggregationExpression = objects => Constants.AggregateCalculatingPlaceHolder;
}
}
}
else
{
var functionsToRecalculate = aggregateDefinitions.Select(x => x.FunctionName);
var availableFunctions = grid.Columns.SelectMany<GridViewColumn, AggregateFunction>(x => x.AggregateFunctions).ToList();
foreach (var functionName in functionsToRecalculate)
{
var aggregateFunction = availableFunctions.FirstOrDefault(x => x.FunctionName == functionName);
if (aggregateFunction != null)
{
((AggregateFunction<object, object>) aggregateFunction)
.AggregationExpression = objects => Constants.AggregateCalculatingPlaceHolder;
}
}
}
grid.CalculateAggregates();
}
/// <summary>
/// Updates aggregate results.
/// </summary>
/// <param name="grid">The grid control.</param>
/// <param name="aggregateResults">The aggregate result collection.</param>
/// <param name="aggregateDefinitions">The aggregate definition collection.</param>
public static void UpdateAggregates(
GridViewDataControl grid,
AggregateResultCollection aggregateResults,
IList<AggregateDefinition> aggregateDefinitions)
{
if (grid == null)
return;
ProcessAggregateResults(
grid, aggregateResults, aggregateDefinitions);
grid.CalculateAggregates();
}
public static void CalculateAggregats(bool isClient, GridViewDataControl grid, AggregateCriteria criteria, IColumnItem currentColumn, string result)
{
var f = new AggregateFunction<object, object>
{
Caption = string.Format(CultureInfo.InvariantCulture, "{0}:", AggregateHelper.GetAttribute(criteria.SummaryType).FullName),
FunctionName = string.Format(CultureInfo.InvariantCulture, "{0}{1}", criteria.SelectedColumn, criteria.SummaryType)
};
if (isClient)
f.AggregationExpression = x => x.ClientCalculateAggregates(criteria);
else
f.AggregationExpression = x => result;
if (currentColumn != null)
{
if (grid != null)
{
grid.Columns[currentColumn.FullyQualifiedName].AggregateFunctions.Add(f);
var ordered = grid.Columns[currentColumn.FullyQualifiedName].AggregateFunctions.OrderBy(x => AggregateHelper.GetAttribute(AggregateHelper.GetTypeByFullName(x.Caption.Replace(":", null))).Order).ToList();
grid.Columns[currentColumn.FullyQualifiedName].AggregateFunctions.Clear();
grid.Columns[currentColumn.FullyQualifiedName].AggregateFunctions.AddRange(ordered);
}
currentColumn.AggregateCriteriaList.Add(criteria);
}
if (!isClient)
if (grid != null)
grid.CalculateAggregates();
}
