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SqlGeography.InstanceOf Method (String)


Tests if the SqlGeography instance is the same as the specified type.

Namespace:   Microsoft.SqlServer.Types
Assembly:  Microsoft.SqlServer.Types (in Microsoft.SqlServer.Types.dll)

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)]
public SqlBoolean InstanceOf(
	string geometryType


Type: System.String

A string that specifies one of the 12 types exposed in the geography type hierarchy.

Return Value

Type: System.Data.SqlTypes.SqlBoolean

A SqlBoolean value that indicates whether the SqlGeography instance is the same as the specified geometry type.

Returns true if the type of a geography instance is the same as the specified type, or if the specified type is an ancestor of the instance type; otherwise, returns false.

The input for the method must be one of the following: T:Microsoft.SqlServer.Types.SqlGeometry, Point, Curve, LineString, Surface, Polygon, GeometryCollection, MultiSurface, MultiPolygon, MultiCurve, MultiLineString, and MultiPoint.

This method throws an ArgumentException if any other strings are used for the input.

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