Cannot edit default value of method param

[aregtech]

Description:

In the Lusan Service Interface Designer, it is not possible to edit the default value of a method parameter. When typing into the Default Value field, the input focus unexpectedly jumps to the Name field, and subsequent input modifies the parameter name instead of the default value.

This makes it impossible to define or edit default parameter values during method creation.

Steps to Reproduce:

1. Create a Service Interface.
2. Add a method to the interface.
3. Add a parameter to the method.
4. Enable the "Value" checkbox to set a default value.
5. Start typing in the Default Value field.

Actual Result:

Each time a character is typed in the Default Value field, the cursor jumps to the Name field. Continued typing changes the parameter name instead of the default value.

Expected Behavior:

The cursor should remain in the Default Value field, allowing the user to enter or edit the default value of the parameter without losing focus.

Impact:

This issue prevents proper configuration of method parameters and disrupts the normal workflow when designing service interfaces.