Hiding entry control on selection of picker value

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C#

XAML

Xamarin

I am currently learning xamarin.forms. I developed simple application for additon of Employee in SQLite

In this app there is picker control(like dropdown in .Net :)). When i select Other option in this picker i want to show/ hide entry control (like textbox in .net :))

In .net we show hide controls using panel..similarly which control i can use in xamarin

Please note i already hiding and showing entry control by using IsVisible property..but while hiding it still occupies space on app page

What I have tried:

My Xaml code

<Picker x:Name="Pkr_Department" Grid.Row="13" ></Picker>

<Entry x:Name="txtDepartment" Placeholder="Enter Department" Grid.Row="14" IsVisible="False" ></Entry>

My xaml.cs code

Pkr_Department.SelectedIndexChanged += (sender, args) =>
            {
                if (Pkr_Department.SelectedIndex == 0)
                {
                    txtDepartment.IsVisible = true;

                   
                }
                else
                {
                    txtDepartment.IsVisible = false;
                }
            };