Vertical Align in WPF TextBox

问题:

I have 2 TextBoxes in my wpf app, one for user name and other for password, both have FontSize=20, but the text appears like this:

How can I fix this?

Xaml:

<TextBox Grid.Row="1" Grid.Column="1" Height="40" BorderThickness="1" BorderBrush="#FFD5D5D5" FontSize="36" Text="test" />
<PasswordBox Grid.Row="3" Grid.Column="1" Height="40" BorderThickness="1" BorderBrush="#FFD5D5D5" FontSize="36" Password="test" />

回答1:

Adjust the Padding properties of these controls, e.g. Padding="0":

<TextBox Grid.Row="1" Grid.Column="1" Height="40" BorderThickness="1" BorderBrush="#FFD5D5D5" FontSize="36" Text="test" Padding="0" />  
<PasswordBox Grid.Row="3" Grid.Column="1" Height="40" BorderThickness="1" BorderBrush="#FFD5D5D5" FontSize="36" Password="test" Padding="0" />

Or, don't set the Height properties, and instead let the controls size themselves automatically based on the height of their content:

<TextBox Grid.Row="1" Grid.Column="1" BorderThickness="1" BorderBrush="#FFD5D5D5" FontSize="36" Text="test" />
<PasswordBox Grid.Row="3" Grid.Column="1" BorderThickness="1" BorderBrush="#FFD5D5D5" FontSize="36" Password="test" />

回答2:

To Center the text in a TextBox use the VerticalContentAlignment Property of the TextBox.

<TextBox Text="The text" Height="40" VerticalContentAlignment="Center" />

回答3:

You have given explicit Height set to 40 to these TextBox controls.

Please remove it and let them take enough space to show their content.

<TextBox Grid.Row="1"
            Grid.Column="1"
            BorderThickness="1"
            BorderBrush="#FFD5D5D5"
            FontSize="36"
            Text="test" />
<PasswordBox Grid.Row="3"
                Grid.Column="1"
                BorderThickness="1"
                BorderBrush="#FFD5D5D5"
                FontSize="36"
                Password="test" />

回答4:

The reason for this is because you have specified the FontSize property as well as the Height explicitly. The text with the bigger FontSize cannot fit in the given height. So, there are a couple of solutions for this

1. Increase the Height of the TextBox to 60 (but this will create a heighted TextBox which may not look good in the UI). Or, you can just skip Height property, so that it will automatically take the minimum space it needs.

    <TextBox Grid.Row="1"
             Grid.Column="1"
             BorderThickness="1" 
             BorderBrush="#FFD5D5D5" 
             FontSize="36" 
             Text="test" />

2. Reduce FontSize, so that the text can fit in the TextBox with Height 40

    <TextBox Grid.Row="1"
             Grid.Column="1"
             Height="40"
             BorderThickness="1" 
             BorderBrush="#FFD5D5D5" 
             FontSize="24" 
             Text="test" />