Question

我想将DataGridView转换为DataTable。

using (DataTable dt = new DataTable())
{
    dt.Columns.Add("column1", typeof(int));
    dt.Columns.Add("column2", typeof(string));
    dt.Columns.Add("column3", typeof(int));
    foreach (DataGridViewRow dgvR in dgQBM)
    {
        dt.Rows.Add(dgvR.Cells[0].Value, dgvR.Cells[1].Value);
    }
}

错误：

foreach statement cannot operate on variables of type 
'System.Windows.Forms.DataGridView' because 'System.Windows.Forms.DataGridView' 
does not contain a public definition for 'GetEnumerator'

Answer 1

应该是：

foreach (DataGridViewRow dgvR in dgQBM.Rows)
{
  ...

Answer 2

尝试使用Rows

using (DataTable dt = new DataTable())
            {
                dt.Columns.Add("column1", typeof(int));
                dt.Columns.Add("column2", typeof(string));
                dt.Columns.Add("column3", typeof(int));
                foreach (DataGridViewRow dgvR in dgQBM.Rows)
                {
                    dt.Rows.Add(dgvR.Cells[0].Value, dgvR.Cells[1].Value);
                }
            }

Answer 3

一行尝试一下...速度性能代码。

DataTable dt = (DataTable)dgQBM.DataSource;

将dataGridView转换为dataTable：错误

3 个答案: