如何在wpf中循环遍历多个组合框以获取初始值 [英] How to loop through multiple comboboxes for initial value in wpf

问题描述

大家好，



任何人都可以告诉我如何循环添加在表单网格上的多个组合框架&检查wpf中的初始值。如果任何组合框的初始值为null，那么我应该弹出一条消息。



我试过这个，但是我在foreach表达式中得到错误：

Hi all,

Can anybodytell me how to loop through multiple comboboxes added on a form grid & check for their initial values in wpf. If the initial value of any of the combobox is null then i should pop up a message.

I tried this, but i get error in the foreach expression:

foreach (Control c in this.Controls)
               {
                   if (c is ComboBox)
                   {
                       ComboBox textBox = c as ComboBox;
                       if (textBox.SelectedValue == null)
                       {
                           MessageBox.Show("please fill all fields");
                           break;
                       }
                   }
               }

提前谢谢。

Thanks in advance.

推荐答案

我想这会对你有帮助。



http://dirk.schuermans.me/?p=585 [ ^ ]

I think this will help you.

http://dirk.schuermans.me/?p=585[^]

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