从其他形式创建Treeview节点. [英] Create Treeview node from other form.

问题描述

我已经使用Treeview控件创建了表单，并填充了数据库中的所有值-效果很好.

类别
---子类别
-----项目

要创建新类别(右键单击->新建)，将在我创建新类别后显示一个表单-我必须立即在树形视图中添加一个节点.

运行不正常.

如果您有任何样品需要清除，请告诉我...

谢谢与问候，
Senthil .R

I have created form using treeview control and populated all the values from the database - that works fine.

Category
---Sub Category
-----Item

To create New category (right click -> New) a form will be showd, after i created the new category - I have to add a node immediately to the tree view.

It is not working well.

Please let me know if you have any samples to clear this...

Thanks & Regards,
Senthil .R

推荐答案

首先，当他们选择"New"(新建)时，不要尝试以您显示的形式使用它-该表单应该对如何操作一无所知您将显示它收集的数据.相反，请像处理OpenFileDialog表单一样对待"New"表单:创建它，设置它的参数，显示它，然后使用属性告诉您用户做了什么.

First off, don''t try to to it in the form you display when they select "New" - that form should know nothing about how you display the data it collects. Instead, treat the "New" form in the same way that you do a OpenFileDialog form: create it, set up it''s parameters, display it, and then use the properties to tell you what the user did.

MyNewItemForm myForm = new MyNewItemForm()
if (myForm.ShowDialog() == DialogResult.OK)
   {
   string item = myForm.NewDataEnteredByTheUser;
   TreeNode t = new TreeNode(item);
   myExistingNode.Nodes.Add(t);
   }

希望此 [

Hope this[^] might help you.

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