c# - DataGridView 选中行到DataTable

Question

我试图只将 DataGridView 的选定行添加到 DataTable，我使用的代码总是从第一行开始，即使未选择这一行......有人知道如何请解决这个问题？

DataTable dt = new DataTable("Rapport");

// Generating columns to datatable
foreach (DataGridViewColumn column in dataGridView1.Columns)
    dt.Columns.Add(column.Name, typeof(string));

// Adding selected rows of DGV to DataTable
for (int i = 0; i < dataGridView1.SelectedRows.Count; i++)
{
    dt.Rows.Add();
    for (int j = 0; j < dataGridView1.Columns.Count; j++)
    {
        dt.Rows[i][j] = dataGridView1[j, i].Value;
    }
}

Answer 1

您必须像访问 SelectedRows

dt.Rows[i][j] = dataGridView1.SelectedRows[i].Cells[j].Value;

如果您的 DataTable 与 Cell 具有相同的类型就更好了

DataTable dt = new DataTable();
 foreach (DataGridViewColumn column in dataGridView1.Columns)
    dt.Columns.Add(column.Name, column.CellType); //better to have cell type

所以你的代码是:

DataTable dt = new DataTable();
foreach (DataGridViewColumn column in dataGridView1.Columns)
    dt.Columns.Add(column.Name, column.CellType); //better to have cell type
for (int i = 0; i < dataGridView1.SelectedRows.Count; i++)
{
     dt.Rows.Add();
     for (int j = 0; j < dataGridView1.Columns.Count; j++)
     {
         dt.Rows[i][j] = dataGridView1.SelectedRows[i].Cells[j].Value;
                                   //^^^^^^^^^^^
     }
 }