Question

我尝试将datagridview数据发送到sql server。我有逻辑层和数据层

  // calling logic layer 

  RecLogic.ProcessRecoveryData(dataGridView1.DataSource)

然后我从datalayer

访问该数据源

//this is my logic class

public void ProcessRecoveryData(object dataSource)
{
    try
    {               
        new RecoveryData().ProcessRecoveryData(dataSource);
    }
    catch (SqlException sqlEx)
    {
        throw sqlEx;
    }
    catch (Exception ex)
    {
        throw ex;
    }

我从逻辑层

访问该数据源

//this is my data class

 public void ProcessRecoveryData(object dataSource)
    {

        try
        {
            sqlCon.Open();
            sqlCmd.Connection = sqlCon;
            SqlDataAdapter sqlAdp = new SqlDataAdapter();
            for (int i = 0; i < dataGridView1.dataSource.Rows.Count; i++)
                {
                    sqlCmd.CommandType = CommandType.StoredProcedure;
                    sqlCmd.CommandText = "my_sp";              sqlCmd.Parameters.AddWithValue("@p1",dataGridView1.dataSource.Rows[i].Cells["text"].Value);    sqlCmd.Parameters.AddWithValue("@p2",dataGridView1.dataSource.Rows[i].Cells["text"].Value);
                        sqlAdp.SelectCommand = sqlCmd;
                    }                
            }
            catch (SqlException sqlEx)
            {
                throw sqlEx;
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                sqlCon.Close();
                sqlCmd.Dispose();

            }
        }

如何将数据层中的数据源发送到sql？

Answer 1

您需要定义一个Table类型，并在您的存储过程中具有该类型的参数...... 例如在SQL ....

  CREATE TYPE myTableType AS table (
    categoryBridgeId uniqueIdentifier,
    denomination int,
    qty int
    );

CREATE PROCEDURE [dbo].[My_Sproc] (@items myTableType READONLY,
etc

然后在C＃中，您可以将DataTable传递给storred过程...

..
var tblParam = new SqlParameter("@items", SqlDbType.Structured);
tblParam.Value = GetItemsAsDataTable(req);
tblParam.TypeName = "dbo.myTableType ";  
cmd.Parameters.Add(tblParam);
...

private static DataTable GetItemsAsDataTable(ECodeAddItemsToBasketRequest req)
{
  var result = new DataTable();
  result.Columns.Add("categoryBridgeId", typeof(Guid));
  result.Columns.Add("denomination", typeof(int));
  result.Columns.Add("qty", typeof(int));
  foreach (var item in req.ps)
  {
    Guid category = item.cid;
    int denomination = item.d;
    int qty = item.q;
    result.Rows.Add(category, denomination, qty);
  }
  return result;
}

希望这会有所帮助 - 祝你好运！

如何将datagridview数据发送到sql server？

1 个答案: