xaml - Transfer User Control to a WPF custom control -

xaml - Transfer User Control to a WPF custom control -

ok, have user control, want transfer wpf custom control.

the user command has code behind file, can straight register events of control: example:

<textbox grid.column="0" name="valuebox" textalignment="right" textchanged="valuebox_textchanged" previewkeydown="valuebox_previewkeydown" />

and corresponding valuebox_textchanged event in code behind is:

private void valuebox_textchanged(object sender, textchangedeventargs e) { var textbox = (textbox)sender; var positivewholenum = new regex(@"^-?\d+$"); if (!positivewholenum.ismatch(textbox.text) || int.parse(textbox.text) < 0) { textbox.text = "0"; } numericvalue = convert.toint32(textbox.text); raiseevent(new routedeventargs(valuechangedevent)); }

now, when seek turn custom control, have theme folder, generic.xaml file. , file: mycustomcontrol.cs

in generic.xaml, i've written (i derive control)

<textbox grid.column="0" name="valuebox" textalignment="right" />

and in cs file:

public override void onapplytemplate() { base.onapplytemplate(); attachtextbox(); } protected textbox textbox; private void attachtextbox() { var textbox = gettemplatechild("valuebox") textbox; if (textbox != null) { textbox = textbox; } }

now, how write replacement valuebox_textchanged written in user control?

you can write code valuebox_textchanged event handler in codebehind of generic.xaml file. create code behind fiel generic.xaml follow below steps.

add file named generic.xaml.cs

right click on themes folder , select new class name generic.xaml.cs change definition of class within generic.xaml.cs partial class generic :resourcedictionary //this class should inherit resourcedictionary

link code behind file gereric.xaml using x:class

now can write code generic.xaml elements in generic.xaml.cs file.

for more info: code behind generic.xaml

wpf xaml control