Want to Add watermark text as a property in WPF User control?

Question

I have created a WPF usercontrol. That control contain one textbox and button. I want a property for water mark in that control.

This will help the user what they like to add the text as watermark. like WaterMark="Enter the Password...".

<wpfCtrl:PasswordBoxWin8 Background="CadetBlue" Margin="24,12,257,258" FontSize="26" />

How Can I add watermark as propery in my user control?

Passwordbox user control download.

Answer 1

Have a look at this for a watermark

Watermark / hint text TextBox in WPF

Basically add a text block that sits over you textbox and then hide it when you dont want the watermark shown anymore.

If you want the custom text, create a dependency property and bind that to the Text property of the textblock. This way, the user can specify whatever text they want.

public string WaterMark
{
  get { return (string )this.GetValue(WaterMarkProperty); }
  set { this.SetValue(WaterMarkProperty, value); } 
}
public static readonly DependencyProperty WaterMarkProperty = DependencyProperty.Register(
 "WaterMark", typeof(string ), typeof(PasswordBoxWin8));

Then you bind to it in the XAML

<TextBlock Text="{Binding WaterMark, ElementName=YourUserControlName}" />

THis way, your user control has a property called WaterMark that you can set