如何隐藏特定的行C＃ [英] How do I hide a specific row C#

问题描述

我想隐藏一行，如果它有一个单元格包含'花店'，如果标签上写着'BMX商店'

I want to hide a row if it has a cell contains 'flower shop', if the label says 'BMX shop'

if (label3.Text == "BMX shop")
foreach (DataGridViewRow dr in CustOrdersDGV.Rows)
{
        if (dr.Cells[7].Value.ToString().ToLower().Contains("Flower shop"))
        {
            dr.Visible = false;
        }
    }

但是当代码运行时，它显示所有行



我的尝试：

But when the code is run, it shows all rows

What I have tried:

if (dr.Cells[7].Value.ToString() == "BMX shop")
{
    dr.Visible = false;
}

和......

and ...

foreach (DataGridViewRow dr in CustOrdersDGV.Rows)
                {
                    if (dr.Cells.Count > 7)  // validate the index

                    if (dr.Rows[7].Value.ToString() == "BMX shop")
                    {
                        dr.Visible = false;
                    }
                }

推荐答案

看看你的代码：

Look at your code:

if (dr.Cells[7].Value.ToString().ToLower().Contains("Flower shop"))

由于ToLower总是删除任何大写字符，你永远不会得到任何包含大写字母的文本匹配...



你的其他示例代码使用不同的列号，所以其中一个是可能是错的。 （这就是为什么使用列名更好的原因 - 不容易出错。）



除此之外，你需要使用调试器来查看代码运行时的列数据 - 我们无法为您执行此操作，因为我们无法访问您的数据！

Since ToLower always removes any uppercase characters, you will never get a match with any text containing uppercase letters...

And your other example code uses a different column number, so one of them is probably wrong. (This is why it's a good idea to use the column name instead - less prone to error.)

Other than that, you need to use the debugger to look at your column data while your code is running - and we can't do that for you as we have no access to your data!

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