Hello,

The most important thing to note when setting the value is that the XamNumericEditor expects a value of type double. You'll need to make sure that the value you are passing in is of this type.

XAML:

        <ig:XamNumericEditor Name="xamNumericEditor1">

            <ig:XamNumericEditor.Value>

                <sys:Double>100.00</sys:Double>

            </ig:XamNumericEditor.Value>

        </ig:XamNumericEditor>

C#:

    xamNumericEditor1.Value = 200.00;