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FilterEditorSummaryPanel.cs
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FilterEditorSummaryPanel.cs
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using C1.DataCollection;
using C1.DataCollection.BindingList;
using C1.DataFilter;
namespace DataFilterExplorer.Samples.Controls
{
public partial class FilterEditorSummaryPanel : UserControl
{
private readonly FilterForm _filterForm;
private bool _filterOnSelectedItemChanged = true;
private bool _keepFilterExpression = false;
private bool _filterOnCheckedChanged = true;
private List<Expression> _expressions = new List<Expression>();
public FilterEditorSummaryPanel()
{
InitializeComponent();
_filterForm = new FilterForm();
_filterForm.FilterChanged += FilterForm_FilterChanged;
}
public object DataSource
{
get => _filterForm.DataSource;
internal set => _filterForm.DataSource = value;
}
public Expression Expression
{
get => _filterForm.Expression;
set => _filterForm.Expression = value;
}
private void EditButton_Click(object sender, EventArgs e)
{
var btnRect = EditButton.Bounds;
_filterForm.Location = PointToScreen(new Point(btnRect.Right - _filterForm.Width, btnRect.Top - _filterForm.Height));
_filterForm.UpdateExpression();
if (_filterForm.ShowDialog() == DialogResult.OK)
{
if (_keepFilterExpression && !ApplyFilterCheckBox.Checked)
{
_filterOnSelectedItemChanged = false;
FilterSummaryCombo.SelectedItem = null;
_filterOnSelectedItemChanged = true;
}
_filterForm.ApplyFilter();
ApplyFilterCheckBox.Checked = true;
}
}
internal void ApplyFilter() => _filterForm.ApplyFilter();
internal void ClearFilter(bool resetExpression) => _filterForm.ClearFilter(resetExpression);
private void ApplyFilterCheckBox_CheckedChanged(object sender, EventArgs e)
{
if (ApplyFilterCheckBox.Checked)
{
_keepFilterExpression = false;
if (_filterOnCheckedChanged)
{
_filterForm.UpdateExpression();
ApplyFilter();
}
}
else
{
_keepFilterExpression = true;
_filterForm.ClearFilter(false);
ApplyFilter();
}
}
private void FilterForm_FilterChanged(object sender, EventArgs e)
{
_filterOnSelectedItemChanged = false;
if (_filterForm.IsFilterActive)
{
_filterOnCheckedChanged = false;
if (!_expressions.Contains(_filterForm.Expression))
AddFilterExpression(_filterForm.Expression, true);
else
{
int index = _expressions.IndexOf(_filterForm.Expression);
FilterSummaryCombo.SelectedItem = FilterSummaryCombo.Items[index];
}
_filterOnCheckedChanged = true;
}
else if (!_keepFilterExpression)
FilterSummaryCombo.SelectedItem = null;
_filterOnSelectedItemChanged = true;
}
private void AddFilterExpression(Expression expression, bool updateSelectedItem)
{
_expressions.Add(expression);
var item = new C1.Win.Input.ComboBoxItem();
item.Value = item.DisplayText = _filterForm.FilterToString();
FilterSummaryCombo.Items.Add(item);
if (updateSelectedItem)
FilterSummaryCombo.SelectedItem = item;
}
private void CloseButton_Click(object sender, EventArgs e)
{
CloseFilterPanel();
}
public void CloseFilterPanel()
{
_filterForm.ClearFilter(true);
ApplyFilter();
Visible = false;
}
public void ShowFilterPanel()
{
Visible = true;
}
private void FilterSummaryCombo_SelectedIndexChanged(object sender, EventArgs e)
{
if (FilterSummaryCombo.SelectedIndex > -1)
{
_keepFilterExpression = false;
ApplyFilterCheckBox.Checked = true;
}
if (_filterOnSelectedItemChanged)
ApplyFilterExpression(FilterSummaryCombo.SelectedIndex);
_filterOnSelectedItemChanged = true;
}
private void ApplyFilterExpression(int index)
{
if (index >= 0 && index < _expressions.Count)
{
_filterForm.Expression = _expressions[index];
ApplyFilter();
}
}
internal void ApplyTheme(C1.Win.Themes.C1Theme theme)
{
C1.Win.Themes.C1ThemeController.ApplyThemeToControlTree(_filterForm, theme);
}
public void AddSampleExpressions()
{
var filterExpression = new CombinationExpression();
var filterExpressions = filterExpression.Expressions;
var hpGreaterThen200Expression = new OperationExpression()
{
PropertyName = "HP",
FilterOperation = FilterOperation.GreaterThanOrEqual,
Value = 200
};
filterExpressions.Add(hpGreaterThen200Expression);
var automaticTransmissionExpression = new OperationExpression()
{
PropertyName = "AutomaticTransmission",
FilterOperation = FilterOperation.Equal,
Value = true
};
filterExpressions.Add(automaticTransmissionExpression);
var sportsCategoryExpression = new OperationExpression()
{
PropertyName = "StartSaleDate",
FilterOperation = FilterOperation.GreaterThanOrEqual,
Value = new DateTime(2011, 1, 1)
};
filterExpressions.Add(sportsCategoryExpression);
_filterForm.Expression = filterExpression;
ApplyFilter();
//filterExpressions.Clear();
var filterExpression2 = new CombinationExpression();
var filterExpressions2 = filterExpression2.Expressions;
var brandOrExpression = new CombinationExpression();
brandOrExpression.FilterCombination = FilterCombination.Or;
var brandExpressions = brandOrExpression.Expressions;
var brandEqualMercedesBenzExpression = new OperationExpression()
{
PropertyName = "Brand",
FilterOperation = FilterOperation.EqualText,
Value = "Mercedes-Benz"
};
brandExpressions.Add(brandEqualMercedesBenzExpression);
var brandEqualAudiExpression = new OperationExpression()
{
PropertyName = "Brand",
FilterOperation = FilterOperation.EqualText,
Value = "Audi"
};
brandExpressions.Add(brandEqualAudiExpression);
filterExpressions2.Add(brandOrExpression);
_filterForm.Expression = filterExpression2;
ApplyFilter();
_filterForm.ClearFilter(true);
ApplyFilter();
}
}
}