如何使用多個表

Question

我有一個的DevExpress GridView控件與EditingMode = EditFormInplace. 我嘗試用多個表的更新GridView和得到錯誤更新的GridView

動態SQL生成不針對多個基表支持

我認爲，在dataAdapter中添加UpdateCommand是必要的。但我不明白如何獲取更新查詢的參數值（來自編輯的行）。

更新DataSource多個（連接）表的正確方法是什麼？

代碼：

public Form2() 
{ 
InitializeComponent(); 

dataAdapter = new SqlDataAdapter("select t.Id, t.DT, t.Name, t.Age, l.SecondName from TestTime t left join TestTimeLinked l on l.Id = t.Id", Properties.Settings.Default.MARKETConnectionString); 
SqlCommandBuilder commandBuilder = new SqlCommandBuilder(dataAdapter); 

DataTable table = new DataTable(); 
table.Locale = System.Globalization.CultureInfo.InvariantCulture; 

dataAdapter.Fill(table); 
bindingSource1.DataSource = table; 
gridControl1.DataSource = bindingSource1; 
} 

private void gridView1_RowUpdated(object sender, DevExpress.XtraGrid.Views.Base.RowObjectEventArgs e) 
{ 
using (SqlConnection conn = new SqlConnection(Properties.Settings.Default.MARKETConnectionString)) 
{ 
conn.Open(); 
dataAdapter.Update((DataTable)bindingSource1.DataSource); 
} 
} 

Answer 1

DataRow r = gridView1.GetDataRow(e.RowHandle);得到編輯的行值。

，徹底方法代碼：

private void gridView1_RowUpdated(object sender, DevExpress.XtraGrid.Views.Base.RowObjectEventArgs e) 
    { 
     DataRow r = gridView1.GetDataRow(e.RowHandle); 

     using (SqlConnection conn = new SqlConnection(Properties.Settings.Default.MARKETConnectionString)) 
     { 
      conn.Open(); 

      dataAdapter.UpdateCommand = conn.CreateCommand(); 
      dataAdapter.UpdateCommand.CommandText = "UPDATE TestTimeLinked set SecondName = @Name where Id = @Id"; 
      dataAdapter.UpdateCommand.Parameters.AddWithValue("Name", r.Field<string>("SecondName")); 
      dataAdapter.UpdateCommand.Parameters.AddWithValue("Id", r.Field<int>("ID")); 
      dataAdapter.UpdateCommand.ExecuteNonQuery(); 
     } 
    }