/// <summary>
/// Raises the <see cref="GridFilterCreated"/> event.
/// </summary>
/// <param name="eventArgs">Event arguments</param>
protected virtual void OnGridFilterCreated(GridFilterEventArgs eventArgs)
{
if (GridFilterCreated != null)
{
GridFilterCreated(this, eventArgs);
}
}
/// <summary>
/// Creates a <see cref="IGridFilter"/> for the specified arguments.
/// It calls <see cref="CreateGridFilterInternal"/> which must be overridden
/// by any implementing class and raises the <see cref="GridFilterCreated"/>
/// afterwards.
/// </summary>
/// <param name="column">The <see cref="DataColumn"/> for which the filter control should be created.</param>
/// <param name="columnStyle">The <see cref="DataGridColumnStyle"/> for which the filter control should be created.</param>
/// <returns>A <see cref="IGridFilter"/>.</returns>
public IGridFilter CreateGridFilter(DataColumn column, DataGridColumnStyle columnStyle)
{
IGridFilter gridFilter = CreateGridFilterInternal(column, columnStyle);
GridFilterEventArgs gridFilterEventArgs = new GridFilterEventArgs(column, columnStyle, gridFilter);
OnGridFilterCreated(gridFilterEventArgs);
return gridFilterEventArgs.GridFilter;
}
private void dataGrid_FilterChanged(object sender, GridFilterEventArgs e)
{
// MessageBox.Show("FilterChanged");
/// var records = (sender as SfDataGrid).View.Records;
//records.Reverse();
}
private void OnGridFilterFactoryGridFilterCreated(GridFilterEventArgs args)
{
if (GridFilterCreated != null)
{
GridFilterCreated(this, args);
}
}
private void dataGrid_FilterChanging(object sender, GridFilterEventArgs e)
{
if (!DateFilterColumnsName.Contains(e.Column.MappingName))
{
return;
}
if (e.FilterPredicates == null)
{
return;
}
//Due to performance reasons in SfDataGrid FilterPredicates are created based on Checked and UnChecked items count (Which count is less)
//so need to change the FilterPredicates after changing DisplayText of FilterElement.
if (checkedItems.Count() > unCheckedItems.Count())
{
e.FilterPredicates.Clear();
var init = true;
foreach (var filterelement in checkedItems)
{
var c = new FilterPredicate();
c.FilterValue = filterelement.ActualValue;
c.FilterBehavior = FilterBehavior.StringTyped;
c.FilterType = Syncfusion.Data.FilterType.Contains;
c.PredicateType = init ? PredicateType.And : PredicateType.Or;
init = false;
e.FilterPredicates.Add(c);
}
}
}
private void OnGridFilterCreated(GridFilterEventArgs gridFilterEventArgs)
{
if (GridFilterCreated != null)
{
GridFilterCreated(this, gridFilterEventArgs);
}
}
/// <summary>
/// Creates a <see cref="IGridFilter"/> for the specified arguments.
/// It calls <see cref="CreateGridFilterInternal"/> which must be overridden
/// by any implementing class and raises the <see cref="GridFilterCreated"/>
/// afterwards.
/// </summary>
/// <param name="column">The <see cref="DataColumn"/> for which the filter control should be created.</param>
/// <returns>A <see cref="IGridFilter"/>.</returns>
public IGridFilter CreateGridFilter(DataGridViewColumn column)
{
IGridFilter gridFilter = CreateGridFilterInternal(column);
GridFilterEventArgs gridFilterEventArgs = new GridFilterEventArgs(column, gridFilter);
OnGridFilterCreated(gridFilterEventArgs);
return(gridFilterEventArgs.GridFilter);
}
/// <summary>
/// Creates a new instance of <see cref="IGridFilter"/> by calling the
/// <see cref="InnerGridFilterFactory"/> and then modifying the default
/// placement.
/// </summary>
/// <param name="column">The <see cref="DataColumn"/> for which the filter control should be created.</param>
/// <returns>A <see cref="IGridFilter"/>.</returns>
public IGridFilter CreateGridFilter(DataGridViewColumn column)
{
if (_innerGridFilterFactory == null)
{
return(new GridFilters.EmptyGridFilter());
}
IGridFilter result = _innerGridFilterFactory.CreateGridFilter(column);
result.UseCustomFilterPlacement = true;
GridFilterEventArgs eventArgs = new GridFilterEventArgs(column, result);
OnGridFilterFactoryGridFilterCreated(eventArgs);
result = eventArgs.GridFilter;
if (!result.UseCustomFilterPlacement)
{
return(result);
}
if (_createdLabels == null || _createdControls == null)
{
return(result);
}
if (result is GridFilters.EmptyGridFilter && !_showEmptyGridFilters)
{
return(result);
}
Label label = new Label();
label.Text = column.HeaderText + ":";
_createdLabels.Add(label);
_createdControls.Add(result.FilterControl);
return(result);
}
/// <summary>
/// Occurs after the column is filtered in SfDataGrid.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void OnDataGridFilterChanged(object sender, GridFilterEventArgs e)
{
string filters = "";
foreach (var item in this.DataGrid.Columns)
{
if (item != null && item.FilterPredicates.Count > 0)
{
foreach (var filterItem in item.FilterPredicates)
{
if (filters == "")
{
filters += GetFilterInfo(filterItem, item);
}
else
{
filters += " " + this.GetPredicateType(filterItem.PredicateType) + " " + GetFilterInfo(filterItem, item);
}
}
}
}
UpdateFilterText(filters);
this.UpdateFilterStatusBarVisibility(filters.Trim() != "");
}
// **************************************************************
// clearing the text boxes if a record selected before filtering
private void dataGridDivision_FilterChanged(object sender, GridFilterEventArgs e)
{
ClearDivisionTextFields();
}
/// <summary>
/// Raises the <see cref="GridFilterCreated"/> event.
/// </summary>
/// <param name="eventArgs">Event arguments</param>
protected virtual void OnGridFilterCreated(GridFilterEventArgs eventArgs)
{
if (GridFilterCreated != null)
GridFilterCreated(this, eventArgs);
}
/// <summary>
/// Creates a new instance of <see cref="IGridFilter"/> by calling the
/// <see cref="InnerGridFilterFactory"/> and then modifying the default
/// placement.
/// </summary>
/// <param name="column">The <see cref="DataColumn"/> for which the filter control should be created.</param>
/// <param name="columnStyle">The <see cref="DataGridColumnStyle"/> for which the filter control should be created.</param>
/// <returns>A <see cref="IGridFilter"/>.</returns>
public IGridFilter CreateGridFilter(DataColumn column, DataGridColumnStyle columnStyle)
{
if (_innerGridFilterFactory == null)
return new GridFilters.EmptyGridFilter();
IGridFilter result = _innerGridFilterFactory.CreateGridFilter(column, columnStyle);
result.UseCustomFilterPlacement = true;
GridFilterEventArgs eventArgs = new GridFilterEventArgs(column, columnStyle, result);
OnGridFilterFactoryGridFilterCreated(eventArgs);
result = eventArgs.GridFilter;
if (!result.UseCustomFilterPlacement)
return result;
if (_createdLabels == null || _createdControls == null)
return result;
if (result is GridFilters.EmptyGridFilter && !_showEmptyGridFilters)
return result;
Label label = new Label();
label.Text = columnStyle.HeaderText + ":";
_createdLabels.Add(label);
_createdControls.Add(result.FilterControl);
return result;
}
private void dataGridCars_FilterChanged(object sender, GridFilterEventArgs e)
{
// clearing the text boxes if a record selected before filtering
ClearCarTextFields();
}
private void dataGrid_FilterChanged(object sender, GridFilterEventArgs e)
{
dataGrid.SelectedIndex = -1;
}
private void OnGridFilterFactoryGridFilterCreated(GridFilterEventArgs args)
{
if (GridFilterCreated != null)
GridFilterCreated(this, args);
}
private void dataGridCampus_FilterChanged(object sender, GridFilterEventArgs e)
{
ClearCampusTextFields();
}
private void dataGridCourse_FilterChanged(object sender, GridFilterEventArgs e)
{
ClearCourseTextFields();
}
private void OnGridFilterCreated(GridFilterEventArgs gridFilterEventArgs)
{
if (GridFilterCreated != null)
GridFilterCreated(this, gridFilterEventArgs);
}
