C# Datagridview - 选中检查行
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/12432627/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
C# Datagridview - Check Row is Selected
提问by hshah
I have this code in my C# program, but it throws a fit when some buttons are clicked because there is no row selected in the DataGridView (I use the ClearSelection method):
我在我的 C# 程序中有这段代码，但是当点击某些按钮时它会抛出一个合适的错误，因为在 DataGridView 中没有选择行（我使用 ClearSelection 方法）：
string selectedUser = usersGrid.SelectedRows[0].Cells[1].Value.ToString();
Is there some sort of check I can do before the above line to ensure that a row is selected?
在上述行之前是否可以进行某种检查以确保选择了一行？
采纳答案by Tergiver
if (usersGrid.SelectedRows.Count > 0)
回答by MethodMan
I am going to take a stab at what I think you are trying to do, try this below
我将尝试一下我认为您正在尝试做的事情，请在下面尝试
private void myButton_Click(object sender, EventArgs e)
{
foreach (DataGridViewRow row in usersGrid.Rows)
{
if (this.usersGrid.SelectedRows.Count == 1)
{
// get information of 1st column from the row
string selectedUser = this.usersGrid.SelectedRows[0].Cells[0].ToString();
}
}
}
also do the following as well and checkout the link
也执行以下操作并查看链接
Set DataGridView.MultiSelect=false and DataGridView.SelectionMode= FullRowSelect. This will make it so the user can only select a single row at a time.
设置DataGridView.MultiSelect=false 和DataGridView.SelectionMode= FullRowSelect。这将使用户一次只能选择一行。
