无法在Form1.cs中访问dataGridView1

问题描述：

我正在尝试从数据网格读取数据
所以我建议使用这样的东西

I was trying to work read data from data grids
So i got a suggestion to use something like this

foreach (DataGridViewRow DataRow in mydataGridView1.Rows)
{

    foreach (DataGridViewCell DataCell in DataRow.Cells)
    {
          //my other code
    }
}

所以我将mydataGridView1定义为局部变量.但这行不通.
所以我使用定义System.Windows.Forms.DataGridView dataGridView1;存在于InitializeComponent()中.但是我不认为这是一个永久的解决方案.

so i definded mydataGridView1 as a local variable. but this wont work.
So i use the definition System.Windows.Forms.DataGridView dataGridView1; present in InitializeComponent(). but that i dont think is a permanent solution. Can any one provide me how to do this.

答

听起来像是您开始编写代码甚至都没有阅读基础文章的声音！

例如，如果要检索第一行的第一列，则可以尝试:

Sounds like you started coding without even reading the basic articles!

For example, if you want to retrieve the first column of the first row, you can try:

MyGridView.Rows[0].Cells[0].Value;

现在，在编码之前先阅读以下内容:
DataGridView类 [使用DataGrid控件 [ C#DataGridView教程 [ C#DataGridView提示和秘密 [ ^ ]
如何:向Windows窗体DataGridView控件中的单个单元格添加工具提示 [ ^ ]

Now, have a read on these before coding:
DataGridView Class[^]
Using the DataGrid Control[^]
C# DataGridView Tutorial[^]
C# DataGridView Tips and Secrets[^]
How to: Add ToolTips to Individual Cells in a Windows Forms DataGridView Control[^]

对不起，我想当我给您解决方案时很明显，您应该用您正在使用的DataGridView的名称替换mydataGridView1在您的表格上.

如果我知道您无法自己解决该问题，那么我将其称为"dontUseThisNameButUseTheNameOfTheDataGridViewOnYourFormCommaYouKnowCommaTheOneYouAreTryingToGetTheDataFrom".
所以:

I''m sorry, I thought it was obvious when I gave you the solution, that you should replace mydataGridView1 with the name of the DataGridView you were using on your form.

If I had known you couldn''t work that out for yourself, I would have called it "dontUseThisNameButUseTheNameOfTheDataGridViewOnYourFormCommaYouKnowCommaTheOneYouAreTryingToGetTheDataFrom" instead.
So:

foreach (DataGridViewRow row in dontUseThisNameButUseTheNameOfTheDataGridViewOnYourFormCommaYouKnowCommaTheOneYouAreTryingToGetTheDataFrom.Rows)
    {
    foreach (DataGridViewCell thisIsTheCellFromTheDataGridViewRowThatYouAreTryingToFind in row.Cells)
        {
        ...
        }
    }

对于由此给您带来的任何不便，我深表歉意.

My apologies for any inconvenience caused.

无法在Form1.cs中访问dataGridView1

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