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The check box in the first line is fully realized. Read the previous article, right-clicking on the gray area will not display the right-click menu.
After clicking the test button, a pop-up box will pop up to read the data information selected by the right button
Implementation process
Drag a ContextMenuStrip from the visual component and throw it into the DatagridView
Binding test button click event
test button click event
private void 测试按钮_Click(object sender, EventArgs e)
{
List<int> list = new List<int>();
//首先进行第一次循环 获取选中的行数
for (int i = 0; i < dgv.Rows.Count; i++)
{
//如果被选中
if ((bool)dgv.Rows[i].Cells[0].EditedFormattedValue == true)
{
list.Add(i);
}
}
//新建 选中长度的数组存放每一行
string[] str = new string[list.Count];
int j = 0;
foreach (int i in list)
{
str[j++] = dgv.Rows[i].Cells[1].Value.ToString() + "@" + dgv.Rows[i].Cells[2].Value.ToString();
}
//输出选中所有行的内容
for (int i = 0; i < str.Length; i++)
{
MessageBox.Show(string.Format("获取的第{0}条为：", i + 1) + str[i]);
}
}
Bind dgv (my DatagridView is called dgv) right click event
/// <summary>
/// dgv鼠标右键，焦点改变到当前点击处，并选择改行
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Dgv_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
{
if (e.RowIndex >= 0)
{
Console.WriteLine(dgv.Rows[e.RowIndex].Cells[1].Value);
//判断是否右键和是否有数据
if (e.Button == MouseButtons.Right && dgv.Rows[e.RowIndex].Cells[1].Value != null)
{
dgv.ClearSelection();
dgv.Rows[e.RowIndex].Cells[0].Value = 1;
//焦点改变
dgv.CurrentCell = dgv.Rows[e.RowIndex].Cells[e.ColumnIndex];
this.contextMenuStrip1.Show(Control.MousePosition);
}
}
}
如果不考虑是否有数据才显示右键菜单，可以直接在DatagridView 属性中设置如下，但注意如果有此设置，则上述绑定的dgv右键点击事件实现效果不会生效
Directly select your ContextMenuStrip component and it can be displayed anywhere in dgv
reference documents
Datagridview right-click to select the cell and get the focus
c# winform to get the gridview data
right-click. Click to judge. After the row is selected, the right-click menu will pop up