在Windows窗体应用程序中的窗口之间传递变量 [英] Passing variables between windows in Windows Forms Application

问题描述

我有两个窗口，（Form1和EditRecord）。在Form1上有一个gridview，它由填充查询（SQL数据库）填充。我希望用户从表中选择一条记录，然后单击btnEdit记录将所选记录移动到新窗口。以下代码是我在EditRecord窗口中的代码。我的SQL查询中的键列是GUID。我编写了一个SQL查询来参数化GUID，我称之为FillByGUID。以下是我的EditRecord窗口中的代码：

I have two windows, (Form1 and EditRecord). On Form1 there is a gridview that is populated by a fill query (SQL Database). I want the user to select a record from the table and click btnEdit record to move the selected record to a new window. The following code is what I have in my EditRecord window. The key column in my SQL query is GUID. I have written a SQL query that parametizes the GUID and I've called that FillByGUID. Here is the code on my EditRecord window:

internal void LoadOrders(String GUID)
       {
           this.cj96TBRiscTableAdapter.FillByCustomerID(this.cj96DataSet.cj96TBRisc, GUID);
       }

有人可以帮帮我吗？如果您需要任何其他信息，请告诉我，我会发布。

Can someone please help me on this? If you need any other information let me know and I'll post it.

推荐答案

具体如何执行此操作取决于表单之间的关系：如果您创建一个一个在另一个的实例，然后第一个是父母，第二个是孩子：

在两种形式之间传递信息，第1部分：父母对儿童 [ ^ ]

在两种形式之间传递信息，第2部分：儿童到父母 [ ^ ]

在两种表格之间传递信息，第3部分：儿童与儿童 [ ^ ]

Exactly how you do this depends on the relationship between the forms: If you create an instance of one in another, then the first is the parent, the second is the child:
Transferring information between two forms, Part 1: Parent to Child[^]
Transferring information between two forms, Part 2: Child to Parent[^]
Transferring information between two forms, Part 3: Child to Child[^]

将EditRecord表单的构造函数更改为接受一个字符串作为参数。

Change your EditRecord form's constructor to accept a string as a parameter.

private string GUID;

public EditRecord(string GUID)
{
     this.GUID = GUID;
}

然后当你在Form1中初始化EditRecord时，将值传递给构造函数。

Then when you initialise EditRecord in Form1 pass the value into the constructor.

EditRecord editRecord = new EditRecord(GUID);
editRecord.Visible = true

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