private void initFilterData()
{
if (FilterCurrentData == null || !FilterCurrentData.IsTypeInitialized)
{
string valuePropertyBindingPath = getValuePropertyBindingPath(AssignedDataGridColumn);
bool typeInitialized;
Type valuePropertyType = getValuePropertyType(
valuePropertyBindingPath, getItemSourceElementType(out typeInitialized));
FilterType filterType = getFilterType(
valuePropertyType,
isComboDataGridColumn(),
isBetweenType());
FilterOperator filterOperator = FilterOperator.Undefined;
string queryString = String.Empty;
string queryStringTo = String.Empty;
FilterCurrentData = new FilterData(
filterOperator,
filterType,
valuePropertyBindingPath,
valuePropertyType,
queryString,
queryStringTo,
typeInitialized,
DataGridColumnExtensions.GetIsCaseSensitiveSearch(AssignedDataGridColumn));
}
}
private bool isBetweenType()
{
return(DataGridColumnExtensions.GetIsBetweenFilterControl(AssignedDataGridColumn));
}
private string getValuePropertyBindingPath(DataGridColumn column)
{
string path = DataGridColumnExtensions.GetFilterMemberPathProperty(column);
if (path == null)
{
path = String.Empty;
if (column is DataGridBoundColumn)
{
DataGridBoundColumn bc = column as DataGridBoundColumn;
path = (bc.Binding as Binding).Path.Path;
}
else if (column is DataGridTemplateColumn)
{
DataGridTemplateColumn tc = column as DataGridTemplateColumn;
object templateContent = tc.CellTemplate.LoadContent();
if (templateContent != null && templateContent is TextBlock)
{
TextBlock block = templateContent as TextBlock;
BindingExpression binding = block.GetBindingExpression(TextBlock.TextProperty);
path = binding.ParentBinding.Path.Path;
}
else if (templateContent != null && templateContent is Button)
{
Button block = templateContent as Button;
BindingExpression binding = block.GetBindingExpression(Button.ContentProperty);
path = binding.ParentBinding.Path.Path;
}
}
else if (column is DataGridComboBoxColumn)
{
DataGridComboBoxColumn comboColumn = column as DataGridComboBoxColumn;
path = null;
Binding binding = ((comboColumn.SelectedValueBinding) as Binding);
if (binding == null)
{
binding = ((comboColumn.SelectedItemBinding) as Binding);
}
if (binding == null)
{
binding = comboColumn.SelectedValueBinding as Binding;
}
if (binding != null)
{
path = binding.Path.Path;
}
if (comboColumn.SelectedItemBinding != null && comboColumn.SelectedValueBinding == null)
{
if (path != null && path.Trim().Length > 0)
{
if (DataGridComboBoxExtensions.GetIsTextFilter(comboColumn))
{
path += "." + comboColumn.DisplayMemberPath;
}
else
{
path += "." + comboColumn.SelectedValuePath;
}
}
}
}
}
return(path);
}
private bool IsTextContainsColumn()
{
return(DataGridColumnExtensions.GetContainsSearchProperty(AssignedDataGridColumn));
}
