c# - Win form DataGridView 动态添加按钮列

Question

我想在填充后向 DataGridView 动态添加一个按钮列。添加后按钮列可见，但是当我尝试遍历 DataGridView 行时，每个单元格中的按钮都为 null。

var buttonCol = new DataGridViewButtonColumn();
buttonCol.Name = "ButtonColumnName";
buttonCol.HeaderText = "Header";
buttonCol.Text = "Button Text";

dataGridView.Columns.Add(buttonCol);

foreach (DataGridViewRow row in dataGridView.Rows)
{
    var button = (Button)row.Cells["ButtonColumnName"].Value;
    // button is null here!
}

Answer 1

使用这个:

foreach (DataGridViewRow row in dataGridView.Rows) 
{ 
    // DataGridViewButtonCell button = (row.Cells["ButtonColumnName"] as DataGridViewButtonCell); 
    row.Cells["ButtonColumnName"].Value = "ButtonText";
}