public static string GetTextFromState(C1.Silverlight.DataGrid.DataGridColumn column)
{
string text = "";
if (column.FilterState != null &&
column.FilterState.FilterInfo != null &&
column.FilterState.FilterInfo.Count > 0)
{
if (column is DataGridComboBoxColumn)
{
if (column.FilterState.Tag is string)
{
text = column.FilterState.Tag.ToString();
}
}
else
{
if (column.FilterState.FilterInfo[0].FilterOperation == FilterOperation.Contains)
{
text = column.FilterState.FilterInfo[0].Value.ToString();
}
}
}
return(text);
}
// *******************************************************************
// Column's type specific filter logic
// *******************************************************************
public static DataGridFilterState BuildFilterState(C1.Silverlight.DataGrid.DataGridColumn column, string text)
{
var fs = new DataGridFilterState();
fs.FilterInfo = new List <FilterInfo>();
fs.Tag = text;
// check if there is text to filter
if (text == string.Empty)
{
return(null);
}
if (column is DataGridComboBoxColumn)
{
// We need special handling for combo columns
// because diplayed text is different than the value in the datasource (id)
// We need to define the "Contains" operator taking ids into account
fs.FilterInfo.Add(new FilterInfo()
{
Value = GetIdsContainingText(text, column as DataGridComboBoxColumn),
FilterOperation = FilterOperation.IsOneOf,
});
}
else
{
// Contains for text columns
fs.FilterInfo.Add(new FilterInfo()
{
FilterType = FilterType.Text,
Value = text,
FilterOperation = FilterOperation.Contains,
});
}
return(fs);
}