resolveEx

[ Function ]

public static resolveEx(
    propertyName: string,
    control: TcHmi.Controls.System.baseTcHmiControl
): TcHmi.SymbolExpression | null;

Returns a symbol expression if a binding exists between a symbol and the control attribute or null if no binding exists.

Parameter

Name	Type	Description
propertyName	string	Name of the attribute
control	TcHmi.Controls.System.baseTcHmiControl	Reference to the control instance

Return value

Type	Description
SymbolExpression, null	The symbol expression as SymbolExpression or null.

	Available from version 1.10

Sample - JavaScript

var myControl = TcHmi.Controls.get('TcHmiTextbox_1');
if(myControl){
    var symbolExpression = TcHmi.Binding.resolveEx('Text',myControl);
    if(symbolExpression){
         // Binding exists
         console.log(myControl.getId() + '::Text is bound to symbol expression: ' + symbolExpression.toString());
    } else {
         // Binding exists not
    }
}