Mainwindow.xaml无法在打开时进行设计，但仍会从工具箱中删除项目

Question

Somethings went wrong when I open Mainwindow.xaml .I couldn't drag, move or edit control( button, textbox ,.....).

Click to see my error

This is what I try to fix it:

•I try to edit by coding, every controls in designing form still were changed when I edited by code but could not move or edit by designing

•I also try to drag some controls from toolbox to designing form and it work correctly(every controls could move or edit by designing) but controls appear before still perform.

•Try open Mainwindow.xaml by Blend Visua Studio

I'm using WPF , Design by Ribbon- Control

THANKS!

Answer 1

If you accidentally (or intentionally) engaged the Lock on the controls, that would prevent you from dragging them around.

Go the the Design menu in VS and then Lock then select "Unlock All" and see if that helps.