IRelationList.IsMasterRowEmpty(Int32, Int32) Method
When implemented by a class, returns a Boolean value that specifies whether a specific detail of a particular master row contains data.
Namespace: DevExpress.Data
Assembly: DevExpress.Data.v24.2.dll
NuGet Package: DevExpress.Data
#Declaration
#Parameters
Name | Type | Description |
---|---|---|
index | Int32 | An integer value that specifies the index of a master row in the data source. |
relation |
Int32 | An integer value that specifies the relationship. |
#Returns
Type | Description |
---|---|
Boolean | A Boolean value that specifies whether a specific detail of a particular master row contains data. |
#Remarks
This method is called in turn for each relationship for each master row (the number of relationships is determined by the IRelationList.RelationCount property). Handle this method to return a Boolean value which specifies whether a specific detail of a particular master row contains data.
When implementing a data source for a GridControl, the value returned by the IsMasterRowEmpty method is used if a master View’s GridOptionsDetail.AllowExpandEmptyDetails property is set to true (the grid allows the expansion of empty detail Views).