Access and determine applied filters

Description

RadPivotGrid provides built-in Includes/Excludes filtering. After the user filters the PivotGrid content, you may want to be able to get this information for indication or other reasons.

Solution

You can use the following approach to achieve this requirement:

C#

bool isFiltered = false;
protected void RadPivotGrid1_ItemCommand(object sender, PivotGridCommandEventArgs e)
{
    if (e.CommandName == RadGrid.FilterCommandName)
    {
        isFiltered = true;
    }
}
protected void RadPivotGrid1_PreRender(object sender, EventArgs e)
{
    if (isFiltered)
    {
        PivotGridFiltersCollection filters = RadPivotGrid1.Filters;
        StringBuilder sb = new StringBuilder("<br/><b>Currently applied filters:</b><br/>");
        foreach (PivotGridLabelGroupFilter filter in filters.OfType<PivotGridLabelGroupFilter>())
        {
            string colName = filter.FieldName;
            PivotGridSetCondition condition = filter.Condition as PivotGridSetCondition;
            sb.Append(colName + ": " + condition.Comparison + " - "
                + string.Join(", ", condition.Items.Select(x => x.ToString())) + "<br/>");
        }
        Label1.Text = sb.ToString();
    }
}

VB

Private isFiltered As Boolean = False

Protected Sub RadPivotGrid1_ItemCommand(ByVal sender As Object, ByVal e As PivotGridCommandEventArgs)
    If e.CommandName = RadGrid.FilterCommandName Then
        isFiltered = True
    End If
End Sub

Protected Sub RadPivotGrid1_PreRender(ByVal sender As Object, ByVal e As EventArgs)
    If isFiltered Then
        Dim filters As PivotGridFiltersCollection = RadPivotGrid1.Filters
        Dim sb As StringBuilder = New StringBuilder("<br/><b>Currently applied filters:</b><br/>")

        For Each filter As PivotGridLabelGroupFilter In filters.OfType(Of PivotGridLabelGroupFilter)()
            Dim colName As String = filter.FieldName
            Dim condition As PivotGridSetCondition = TryCast(filter.Condition, PivotGridSetCondition)
            sb.Append(colName & ": " & condition.Comparison & " - " & String.Join(", ", condition.Items.[Select](Function(x) x.ToString())) & "<br/>")
        Next

        Label1.Text = sb.ToString()
    End If
End Sub