SetElementByIndex


function SetElementByIndex(ctx: TcHmi.SelectableRequired<TcHmi.Context, 'success' | 'error'>, arraySymbol: TcHmi.Symbol<any[]> | null, arrayIndex: number | null, value: any): void

The function SetElementByIndex sets the value of a certain array index in a binding.

Parameter

Name	Type	Description
ctx	TcHmi.SelectableRequired<TcHmi.Context>	Context object Does not need to be specified by the user when it is used in a trigger or function expression. In this case the transfer and the evaluation is done by the corresponding parser. Is used by the caller to indicate success or failure to the framework during execution. If the function is used directly in JavaScript/TypeScript, the context object must be passed in the call and evaluated if necessary.
arraySymbol	Symbol	A binding to the symbol of an array.
index	number	The index of the array for which the value is to be set.
value	any	The value to be written in the position of the array.

Return value

Type	Description
void	No return value.

NuGet package: Beckhoff.TwinCAT.HMI.Functions

	NuGet packages are available from version 1.12.

	Available from 1.8