如何将按钮添加到数据网格视图中的列

Question

DataTable dt = new DataTable();
dt.Columns.Add(new DataColumn("Software Title", typeof(string)));
dt.Columns.Add(new DataColumn("Version", typeof(string)));
dt.Columns.Add(new DataColumn("Uninstall", typeof(System.Windows.Forms.Button)));
DataRow dr = dt.NewRow();
dr[0] = "App";
dr[1] = "1.0";
Button uninstall = new Button();
uninstall.Text = "Uninstall";
dr[2] = uninstall;
dt.Rows.Add(dr);
dataGridViewSoftware.DataSource = dt;

将显示文本，但按钮永远不会显示。

Answer 1

假设您在 Windows 窗体中，您需要向DataGridView添加一个DataGridViewButtonColumn - 而不是直接添加到DataTable。

这应该发生在将DataTable绑定到DataGridView后的某个地方。

这样的事情应该有效：

DataGridViewButtonColumn uninstallButtonColumn = new DataGridViewButtonColumn();
uninstallButtonColumn.Name = "uninstall_column";
uninstallButtonColumn.Text = "Uninstall";
int columnIndex = 2;
if (dataGridViewSoftware.Columns["uninstall_column"] == null)
{
    dataGridViewSoftware.Columns.Insert(columnIndex, uninstallButtonColumn);
}

当然，您必须处理网格的CellClick事件才能使用按钮执行任何操作。

在 DataGridView 初始化代码中的某个位置添加此内容

dataGridViewSoftware.CellClick += dataGridViewSoftware_CellClick;

然后创建处理程序：

private void dataGridViewSoftware_CellClick(object sender, DataGridViewCellEventArgs e)
{
    if (e.ColumnIndex == dataGridViewSoftware.Columns["uninstall_column"].Index)
    {
        //Do something with your button.
    }
}

Answer 2

让它变得简单。

DataGridViewButtonColumn button = new DataGridViewButtonColumn();
{
    button.Name = "button";
    button.HeaderText = "Button";
    button.Text = "Button";
    button.UseColumnTextForButtonValue = true; //dont forget this line
    this.dataGridView1.Columns.Add(button);
}

Answer 3

您可以使用以下方法使用最佳方法

                gvEmployees.AutoGenerateColumns = false;
                gvEmployees.ColumnCount = 4;

                DataGridViewButtonColumn SelectButton = new DataGridViewButtonColumn();
                SelectButton.Name = "Select";
                SelectButton.Text = "Select";
                SelectButton.UseColumnTextForButtonValue = true;
                if (gvEmployees.Columns["Select"] == null)
                {
                    gvEmployees.Columns.Insert(0, SelectButton);
                }
                DataGridViewButtonColumn DeleteButton = new DataGridViewButtonColumn();
                DeleteButton.Name = "Delete";
                DeleteButton.Text = "Delete";
                DeleteButton.UseColumnTextForButtonValue = true;
                if (gvEmployees.Columns["Delete"] == null)
                {
                    gvEmployees.Columns.Insert(1, DeleteButton);
                }
                gvEmployees.Columns[2].Name = "EmployeeID";
                gvEmployees.Columns[2].HeaderText = "EmployeeID";
                gvEmployees.Columns[2].DataPropertyName = "EmployeeID";