SpatialEdmFunctions.GeographyFromText Method (DbExpression)

.NET Framework (current version)
 
System_CAPS_noteNote

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Creates a DbFunctionExpression that invokes the canonical 'GeographyFromText' function with the specified argument, which must have a string result type. The result type of the expression is Edm.Geography. Its value has the default coordinate system id (SRID) of the underlying provider.

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

public static DbFunctionExpression GeographyFromText(
	DbExpression wellKnownText
)

Parameters

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

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

Return Value

Type: System.Data.Common.CommandTrees.DbFunctionExpression

A new DbFunctionExpression that returns a new geography value based on the specified value.

Exception Condition
ArgumentNullException

wellKnownText

ArgumentException

wellKnownText

.NET Framework
Available since 4.5
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