private void dgv_RowPrePaint(object sender, DataGridViewRowPrePaintEventArgs e)
{
if (infos[e.RowIndex].HaveDetails == "不存在") //此条件会导致无限的刷新
{
dgv.Rows[e.RowIndex].Cells[11] = new DataGridViewTextBoxCell();
dgv.Rows[e.RowIndex].Cells[11].Value = "无";
}
}
原因: new DataGridViewTextBoxCell() 程序导致 dgv_RowPrePaint事件重绘,所以就进入了无休止的 刷新
正确代码
private void dgv_RowPrePaint(object sender, DataGridViewRowPrePaintEventArgs e)
{
if (infos[e.RowIndex].HaveDetails == "不存在"&& dgv[11, e.RowIndex].GetType() == typeof(DataGridViewButtonCell))
{
dgv.Rows[e.RowIndex].Cells[11] = new DataGridViewTextBoxCell();
dgv.Rows[e.RowIndex].Cells[11].Value = "无";
}
}
附添加按钮程序
DataGridViewButtonColumn btn = new DataGridViewButtonColumn();
btn.Name = "Details";
btn.HeaderText = "查看详情";
btn.DefaultCellStyle.NullValue = "";
btn.Width = 45;
dgv.Columns.Add(btn);
按钮点击事件
private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
int index = dataGridView1.SelectedCells[0].RowIndex;
var id = filesdt.Rows[index][0].ToString();
if (this.dataGridView1.Columns[e.ColumnIndex].Name == "down")
{
}
else if (this.dataGridView1.Columns[e.ColumnIndex].Name == "del")
{
}
}
标签：11,RowPrePaint,Rows,RowIndex,dgv,刷新,btn,死循环 From： https://www.cnblogs.com/zuochanzi/p/16925557.html