RadzenDropDown Validation problém

Radzen.Blazor Components
1

I created a simple validator for the RadzenDropDown component. The code is simple:

'''
public class MultipleDropDownRequiredValidator : ValidatorBase
{
protected override bool Validate(IRadzenFormComponent component)
{
var data = component.GetValue();

	if (data is List<int> list)
	{
		if (list.Count > 0)
			return true;
	}

	return false;
}

}
'''

The problem is that when the Validate method code is called, the value is empty. The data is not yet in the list. Can you advise what I am doing wrong?

2

RadzenRequiredValidator should already support dropdowns with multiple selection. I have created a new demo (not yet live) to show that: radzen-blazor/RequiredValidatorDropDown.razor at master · radzenhq/radzen-blazor · GitHub

3

That's great news, I'll give it a try. Thank you very much.