Auto - The grid automatically applies the filter text typed by an end-user in the filter row. The filter is applied after 1200 milliseconds. To change this time interval between the time the user starts typing within the Filter Row and when filtering is applied, use the ASPxGridViewBehaviorSettings.AutoFilterRowInputDelay property.
OnClick - The filter is applied when the user clicks Apply.
The Like item allows end-users to create filter expressions using the following wildcard masks.
The '%' symbol - substitutes zero or more characters.
The '_' symbol - substitutes a single character.
The Like menu item's tooltip displays the help text that explains which wildcard masks are supported. See Criteria Language Syntax to learn more.
Auto Filter Row Cell Editors
Filter row cells use the same editors that are used to edit grid cells values. ASPxGridView allows you to replace these default editors with custom ones using the ASPxGridView.AutoFilterCellEditorCreate event.
This event is raised for each cell within the filter row. The event parameter provides the Column property (which identifies the processed filter row cell) and the Value property (which returns the processed cell's value). To replace the settings used to create the default editor, create the EditPropertiesBase descendant, and assign it to the event parameter's EditorProperties property.