CODEWITHSUNDEEP
c#wpf
Dillinger
Dillinger

Reputation: 1903

Can't set placeholder on TextBox

I'm trying to set a placeholder on TextBox, I don't know why Microsoft doesn't provide a default property for this control, is very annoying apply a workaround. Anyway, suppose that I've this control:

<TextBox x:Name="Search" />

I've created a separate class to handle all control event. This is the method inside it:

class ControlsHandle
{
    MainWindow main = new MainWindow(); 

    public void RemoveText(object sender, EventArgs e)
    {
        main.Search.Text = "";
    }

    public void AddText(object sender, EventArgs e)
    {
        if (string.IsNullOrWhiteSpace(main.Search.Text))
            main.Search.Text = "Search a user...";
    }
}

and this is the MainWindow():

public MainWindow()
{
    InitializeComponent();

    Search.GotFocus += GotFocus.EventHandle(ControlsHandle.RemoveText);
    Search.LostFocus += LostFocus.EventHandle(ControlsHandle.AddText);
}

Unfortunately I got this error:

the UIElement.GotFocus event cannot be specified only on the left side of += or -=

on this line: += GotFocus.

Upvotes: 1

Views: 3346

Answers (1)

Irfan
Irfan

Reputation: 519

Try this

<TextBox Name="search" Text="Search a user..." GotFocus="search_GotFocus"/>

 private void  search_GotFocus(object sender, RoutedEventArgs e)
    {
        search.Text = "";

    }

Upvotes: 3

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