Problem with Events from Dropdown and RadioButton

[DeveloperCrucible]

Please assist me understand how to add event triggers to a dropdown menu such that when an item is selected from the dropdown it should assign a value in another TextBox.
Also when the radiobutton is selected, it can either enable or disable a control. Currently this is not well explained in the document
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[korchev]

Handling events is explained in the getting started section of the documentation and also shown in the online demo. For example for RadzenSwitch: Blazor Switch Component | Free UI Components by Radzen

Disabling is included in the demo of every component too- you need to set the Disabled attribute. If you want to toggle it - set it to a field of your page e.g.

<RadzenSwitch Change=@OnChange />
<RadzenTextBox Disabled="@flag" />
@code {
bool flag;

   void OnChange(bool value)
   {
       flag = value;
   }
}

You can also do it without handling the Change vent:

<RadzenSwitch @bind-Value=@flag  />
<RadzenTextBox Disabled="@flag" />
@code {
    bool flag;
}

[DeveloperCrucible]

@korchev

bool flag;

   void OnChange(bool value)
   {
       flag = value;
   }

Thanks korchev,
I think i have noticed something. This works perfectly on a new blaxor page but not on a dialog view.
I needed it on a dialog view but i realized the value was populated when you click the putton or when you close and reopen the dialog. It was not happening on change.

How can you help/advise on this?

[korchev]

You can create a page for the dialog and use it that way.

[DeveloperCrucible]

Great. let me checkout and see.
Thanks for the support.
Greatly appreciated