public virtual bool IsQueryLanguageSupported()

Public Overridable Function IsQueryLanguageSupported() As Boolean

Return Value

If the underlying data source supports a query language (e.g., SQL) by returning true, the framework will exhibit the following behavior:

• If WhereClause is specified in the argument to ArcGIS.Core.Data.Table.Search, the framework will relay said where clause by setting WhereClause with the same value when it calls either PluginTableTemplate.Search or PluginTableTemplate.Search.

If the underlying data source does not support a query language (e.g., SQL) by returning false, the framework will exhibit the following behavior:

• The framework will not relay the WhereClause regardless of whether or not a where clause is specified by the user. In other words, the WhereClause is an empty string when the framework calls either PluginTableTemplate.Search or PluginTableTemplate.Search.

• However, if a user-specified WhereClause exists and said where clause has a subexpression involving a ArcGIS.Core.Data.Field of type ArcGIS.Core.Data.FieldType.OID, the framework will transform the objectID value(s) into a list for ArcGIS.Core.Data.QueryFilter.ObjectIDs. For example:

  QueryFilter queryFilter = new QueryFilter() { WhereClause = String.Format(“{0} = {1}”, “OBJECTID”, 2888) // the OBJECTID field is of type FieldType.OID. }; using (RowCursor rowCursor = featureClass.Search(queryFilter)) {}

  If ArcGIS.Core.Data.QueryFilter.ObjectIDs is specified by the user in their ArcGIS.Core.Data.QueryFilter, the framework will relay said ObjectIDs by setting ArcGIS.Core.Data.QueryFilter.ObjectIDs in the ArcGIS.Core.Data.QueryFilter that is passed to PluginTableTemplate.Search.

Target Platforms: Windows 11, Windows 10

Reference

PluginDatasourceTemplate Class
PluginDatasourceTemplate Members