The value "<" is not valid in the attribute in the PasswordBox control

Question

When creating a WPF application that includes a control PasswordBox, I tried setting PasswordChar'<' instead of '*' to display. I wrote the following code:

<PasswordBox PasswordChar="<"></PasswordBox>

When using this code, the following error is reported:

Error 1 The value "<" is not valid in the attribute.

Answer 1

Use this instead:

<PasswordBox PasswordChar="&lt;"></PasswordBox>

You will find an exhaustive list of characters and how to write them in XAML in this MSDN article: XML Character and XAML Objects

Answer 2

< - XML. <, :

<PasswordBox PasswordChar="&lt;" />

.

XAML

<PasswordBox x:Name="tbPassword" />

tbPassword.PasswordChar = '<';

Answer 3

'<' is a reserved character, try using this instead:

<PasswordBox PasswordChar="&lt;"></PasswordBox>

Answer 4

You will need to use <for <and >for> in xaml:

 <PasswordBox PasswordChar="&lt;"></PasswordBox>