c# - 单击按钮后如何在数据网格中选中复选框的情况下传输数据？ C# 和 SQL Server

Question

我有 2 个表，即 Pending.dbo 和 Approved.dbo。我用过tabcontrol。第一个选项卡包含 “Pending datagridview” 以及 checkbox 和 btnApprove。名为“Approved”的第二个选项卡只是一个只读 datagridview。

我想要的是，当我点击btnApprove时，“Pending datagridview”中checkbox选中的数据将传输到表格Approved.dbo。

这可能吗？到目前为止，这是我的代码:

语言:c#

private void btnApproved_Click(object sender, EventArgs e)
    {
        //List<DataGridViewRow> selectedRows = (from row in dataGridView1.Rows.Cast<DataGridViewRow>() where Convert.ToBoolean(row.Cells["checkBoxColumn"].Value) == true select row).ToList();
        foreach (DataGridView row in dataGridView1.Rows)
        {
            using (var connect = sqlcon.getConnection())
            {
                using (SqlCommand cmd = new SqlCommand("COMMAND TO TRANSFER DATA??????"))
                {

                }
            }
        }
    }

PS。抱歉我的英语和解释不好。谢谢!

Answer 1

应该这样做:-

using (SqlConnection conn = new SqlConnection(ConnString))
{
    using (SqlCommand comm = new SqlCommand())
    {
        comm.Connection = conn;
        conn.Open();

        for(int i = 0; i < dataGridView1.Rows.Count; i++)
        {
            StrQuery = @"INSERT INTO tableName VALUES (" 
                + pendingdataGridView.Rows[i].Cells["ColumnName"].Value +", " 
                + pendingdataGridView.Rows[i].Cells["ColumnName"].Value +");";
            comm.CommandText = StrQuery;
            comm.ExecuteNonQuery();
        }
    }
}

如果您只想将选定的行传输到数据库，则将 for 循环部分替换为

for(int i = 0; i < pendingdataGridView.Rows.Count; i++)
{
    if(!pendingdataGridView.Rows.Selected[i])
        Continue;

    StrQuery= @"INSERT INTO tableName VALUES (" 
                + pendingdataGridView.Rows[i].Cells["ColumnName"].Value +", " 
                + pendingdataGridView.Rows[i].Cells["ColumnName"].Value +");";
    comm.CommandText = StrQuery;
    comm.ExecuteNonQuery();
}

然后将值从数据库绑定(bind)到Approvedgridview

SqlDataAdapter dataAdapter = new SqlDataAdapter(selectCommand, connectionString);

SqlCommandBuilder commandBuilder = new SqlCommandBuilder(dataAdapter);

// Populate a new data table and bind it to the BindingSource.
DataTable table = new DataTable();
dataAdapter.Fill(table);
Approvedgridview.DataSource = table;

• selectCommand:从数据库检索值的查询

• connectionString :您的数据库连接字符串