SpatialEdmFunctions.GeometryPointFromText Method (DbExpression, DbExpression)

.NET Framework (current version)
 

Creates a DbFunctionExpression that invokes the canonical 'GeometryPointFromText' function with the specified arguments. pointWellKnownText 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 GeometryPointFromText(
	DbExpression pointWellKnownText,
	DbExpression coordinateSystemId
)

Parameters

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

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

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

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

Return Value

Type: System.Data.Common.CommandTrees.DbFunctionExpression

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

Exception Condition
ArgumentNullException

pointWellKnownTextcoordinateSystemId

ArgumentException

pointWellKnownTextcoordinateSystemId

.NET Framework
Available since 4.5
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