DataGrigView转换为DataTable

Question

我想将DataGridView转换为DataTable，但是我找到的所有溶剂都没有工作。任何想法？或者需要我使用foreach等？

 DataTable d = detailsDataGridView.DataSource as DataTable;// return null table 

     DataTable dt = new DataTable(); 
     dt = (DataTable)detailsDataGridView.DataSource;//doesn't work 

     BindingSource bs = new BindingSource(); 
     bs.DataSource = detailsDataGridView.DataSource; 
     DataTable d = (DataTable)(bs.DataSource);//doesn't work 

Answer 1

EDITED

试试这个方法，这是你需要什么：

DataTable data = GetDataTableFromDGV(dgvMyMembers); 

    private DataTable GetDataTableFromDGV(DataGridView dgv) 
    { 
     var dt = ((DataTable)dgv.DataSource).Copy(); 
     foreach (DataGridViewColumn column in dgv.Columns) 
     { 
      if (!column.Visible) 
      { 
       dt.Columns.Remove(column.Name); 
      } 
     } 
     return dt; 
    } 

OR

这里有一个简单的2列的DataGridView

一个简单的例子解决方案

DataTable dt = new DataTable(); 
dt.Column.Add("column1", typeof(string)); 
dt.Column.Add("column2", typeof(string)); 

foreach(DataGridViewRow dgvR in myDataGridView) 
{ 
    dt.Rows.Add(dgvR.Cells[0].Value, dgvR.Cells[1].Value); 
}