GeometryPolygonFromText Method
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SpatialEdmFunctions.GeometryPolygonFromText Method (DbExpression, DbExpression)

.NET Framework (current version)
 

Creates a DbFunctionExpression that invokes the canonical 'GeometryPolygonFromText' function with the specified arguments. polygonWellKnownText must have a string result type, while coordinateSystemId must have an integer numeric result type. The result type of the expression is Edm.Geometry.

Namespace:   System.Data.Common.CommandTrees.ExpressionBuilder.Spatial
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

public static DbFunctionExpression GeometryPolygonFromText(
	DbExpression polygonWellKnownText,
	DbExpression coordinateSystemId
)

Parameters

polygonWellKnownText
Type: System.Data.Common.CommandTrees.DbExpression

An expression that provides the well known text representation of the geometry polygon value.

coordinateSystemId
Type: System.Data.Common.CommandTrees.DbExpression

An expression that provides the coordinate system id (SRID) of the geometry polygon value's coordinate system.

Return Value

Type: System.Data.Common.CommandTrees.DbFunctionExpression

A new DbFunctionExpression that returns a new geometry polygon value based on the specified values.

Exception Condition
ArgumentNullException

polygonWellKnownTextcoordinateSystemId

ArgumentException

polygonWellKnownTextcoordinateSystemId

.NET Framework
Available since 4.5
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