获取列表框项目以显示到另一个表单 [英] Getting listbox items to display to another form

问题描述

我还是新来的，所以请考虑.我的问题是我有两种形式(form1和form2).在form1中，有一个带有客户名称的列表框.现在我想要的是，当用户单击列表框上的名称时，会弹出一个新表单(form2)，并在文本框上显示客户的其余信息(年龄，地址，电话号码).当我单击列表框上的名称时，它会显示其余信息，但仅显示在该表单上，而无法在其他表单上显示.我正在使用Visual Studio C#对其进行编码.任何帮助，将不胜感激.谢谢！

I'm still new here so please consider. My question is that I have two forms, (form1 and form2). In form1 there's a listbox with customers names on it. Now what i want is when the user clicks a name on the listbox, a new form (form2) pops up and displays the rest of the information of the customer (age,address,phone number) on the textboxes. When I click a name on the listbox it displays the rest of the info but only on that form, I can't get it to display on another form. I'm coding it using Visual studio, C#. Any help would be appreciated. Thanks!

推荐答案

您必须以一种或另一种方式将信息从form1传递到form2. 如果客户数据是在一个类中收集的，则只需在列表框中传递与所选索引相对应的对象即可.

You have to pass information from form1 to form2 in one way or another. If the data for customers is collected within a class, you can simply pass the object that corresponds to the selected index in the listbox.

例如，如果您的客户数据在form1中是这样设置的:

For instance if your customer data in form1 is set up like this:

List<CustomerData> Customers { get; set; }

该列表中的每个对象都对应于其在列表框中的索引，那么您将需要一个类似于以下内容的form2构造函数:

And each object in that list corresponds to its respective index in the listbox, then you would need a form2 constructor similar to this:

public form2(CustomerData customer){
  // set all form data here based on the customer
}

可能的是，如果在form2中分配了传递的对象，则可以在form2中操作该对象，并且该对象也会在form1中自动更新(假设它是一个类).

Potentially, if you asign the passed object in form2, you can manipulate the object within form2 and it will automatically update in form1 as well (assuming it is a class).

然后创建您的列表框click事件方法并打开表单，传递所选客户:

Then create your listbox click event method and open the form, passing the selected customer:

if(listbox.SelectedIndex < 0) return;
form2 f = new form2(Customers[listbox.SelectedIndex]);
f.Show();

我希望这是您想要的.从您的原始问题有点难以理解.

I hope this is what you were looking for. A bit difficult to understand from your original question.

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