The Filter Control allows end-users to build complex filter criteria with an unlimited number of filter conditions, combined by logical operators.
End-users can open the Filter Control by clicking the following:
the filter image displayed within the filter bar;
the filter expression link.
The Filter Bar is not displayed by default. The Filter Bar can automatically be displayed after grid data has been filtered using the header filter. In this instance, you should set the ASPxGridSettings.ShowFilterBar property to 'Auto'. To always display the Filter Bar, set the ASPxGridSettings.ShowFilterBar property to 'Visible'.
The ASPxCardView control provides several methods that enable you to show and hide the Filter Control in code. These methods are as follows.
The filter control drop-down window displays different comparison operators based on column data type. The table below lists comparison operator visibility for different column types.
*A column contains string values or the column's GridDataColumnSettings.FilterMode property is set to DisplayText.