TypeConvertedValueExpressionAttributeGetExpressionUpdateValue Method

Gets the modeled property based value used to update the Expression.

Namespace: GSF.ComponentModel
Assembly: GSF.Core (in GSF.Core.dll) Version: 2.4.181-beta

Syntax

C++

JavaScript

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public override string GetExpressionUpdateValue(
	PropertyInfo property
)

Public Overrides Function GetExpressionUpdateValue ( 
	property As PropertyInfo
) As String

public:
virtual String^ GetExpressionUpdateValue(
	PropertyInfo^ property
) override

abstract GetExpressionUpdateValue : 
        property : PropertyInfo -> string 
override GetExpressionUpdateValue : 
        property : PropertyInfo -> string

function GetExpressionUpdateValue(property);

View Source

Parameters

property PropertyInfo: Property from which attribute was derived.

Return Value

String
Expression based on source property.

Implements

IValueExpressionAttributeGetExpressionUpdateValue(PropertyInfo)

Remarks

The expression update value is typically used to assign modeled property values back to expressions allowing synchronization of a model with an external source, e.g., a user interface element. For example:

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[TypeConvertedValueExpression("Form.maskedTextBoxMessageInterval.Text", typeof(string))]
public int MessageInterval { get; set; }

Would generate an update expression of "Common.TypeConvertToString(Instance.MessageInterval)" which would be executed as part of an overall expression that looked like Form.maskedTextBoxMessageInterval.Text = Common.TypeConvertToString(Instance.MessageInterval) when called from UpdateExpressions(IEnumerablePropertyInfo, TypeRegistry).

Reference

TypeConvertedValueExpressionAttribute Class

GSF.ComponentModel Namespace