WPF -- ComboBox binding application

The followingCodeYou can use the selectable items in ComboBox to change the font size of textblock. Similarly, You can bind it to RichTextBox, Textbox, or other controls that need to change the font size in this way.

The specific application code is as follows:

<ComboBox grid. Row = "0" selectedindex = "0" name = "mycombobox">

<Listboxitem content = "12"/>

<Listboxitem content = "22"/>

<Listboxitem content = "32"/>

</ComboBox>

<Textblock grid. Row = "1" fontsize = "{binding elementname = mycombobox, Path = selectionboxitem }"

TEXT = "simple text! "Textwrapping =" Wrap "/>