91 lines
3.1 KiB
C#
91 lines
3.1 KiB
C#
using System;
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using System.Data;
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using System.Globalization;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Controls.Primitives;
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using System.Windows.Data;
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using ExtendedGrid.Classes;
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namespace ExtendedGrid.Converter
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{
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class RowSummariesClearButtonIsEnabledConverter:IMultiValueConverter
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{
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public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
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{
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Button clearButton = null;
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bool value = false;
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var header = values[0] as DataGridColumnHeader;
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try
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{
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if (values[0] == DependencyProperty.UnsetValue || values[1] == DependencyProperty.UnsetValue)
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return false;
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var dt = values[1] as DataTable;
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if (header == null || dt == null)
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return false;
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if (header.Column == null)
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return false;
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var currentColumnName = RowSummariesHelper.CurrentColumn;
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if (currentColumnName == null) return false;
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if (dt.Columns.Contains(currentColumnName))
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foreach (DataRow row in dt.Rows)
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{
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if (!string.IsNullOrEmpty(System.Convert.ToString(row[currentColumnName])))
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{
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var dockPanel = FindControls.FindChild<DockPanel>(header, null);
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if (dockPanel != null)
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{
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clearButton =
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((StackPanel)
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(((Popup)(dockPanel.Children[1])).Child)).Children[
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0] as Button;
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if (clearButton != null)
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{
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value = true;
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clearButton.IsEnabled = true;
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}
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}
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}
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}
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return false;
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}
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finally
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{
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if (value)
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{
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}
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else
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{
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if (clearButton != null)
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{
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clearButton.IsEnabled = false;
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}
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else
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{
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var dockPanel = FindControls.FindChild<DockPanel>(header, null);
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if (dockPanel != null)
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{
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clearButton =
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((StackPanel)
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(((Popup) (dockPanel.Children[1])).Child)).Children[
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0] as Button;
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if (clearButton != null)
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{
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clearButton.IsEnabled = false;
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}
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}
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}
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}
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}
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}
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public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
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{
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throw new NotImplementedException();
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}
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}
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}
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