How to set input textbox to readonly false when drop down list option

ahmed salah

I work on blazor server side . i face issue i can't change read-only to false to input textbox when drop down list selected value yes .

so i need sample for razor page have drop down list with 3 values

0 select

1 Yes

2 No

and input text box

when page load for first time drop down will be select option as default value 0 and input textbox with read only true and user can't read and write on it

when change drop down selection to yes it will make input textbox with read-only false so user can read and write on textbox

1 Reply

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Mohamed Azarudeen Z3y ago

Try this

@page "/sample"

Sample Page


    Dropdown:
    



    Textbox:
    


@code {
    private bool readonly = true;

    private void OnDropdownChange(ChangeEventArgs e)
    {
        int selectedValue = int.Parse(e.Value.ToString());
        readonly = selectedValue != 1;
    }
}