C＃-嘗試使用datagridview（也使用OleDbCommandBuilder）更新訪問數據庫時出現“更新語句中的語法錯誤”

Question

我在datagridview中顯示數據，並且嘗試從datagridview更新數據庫。 因此，我使用OleDbCommandBuilder生成更新命令。 單擊更新按鈕時，出現“更新語句中的語法錯誤”。

這是我的代碼：

 private void listBox9_SelectedValueChanged(object sender, EventArgs e)
 {
        AppDomain.CurrentDomain.SetData("DataDirectory", Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData));
        connection = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=|DataDirectory|\\Trip Sheet Management System\\WABCO.mdb");
        sql = "SELECT ID,[TRIP COST] FROM TMSDETAILS";
        dataAdapter = new OleDbDataAdapter(sql, connection);
        dataTable = new DataTable();
        bindingSource = new BindingSource();
        connection.Open();
        dataAdapter.Fill(dataTable);
        bindingSource.DataSource = dataTable;
        dataGridView1.DataSource = bindingSource;
        connection.Close();
  }


 private void button8_Click(object sender, EventArgs e)
    {

        commandBuilder = new OleDbCommandBuilder(dataAdapter);

        try
        {
            dataAdapter.Update(dataTable);
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }
    }

當我單擊更新按鈕時，出現消息框錯誤，提示“更新語句中的語法錯誤”

字段1：ID-自動編號，主鍵字段2：TRIP COST-編號

Answer 1

伙計們，我自己找到了答案。

發生錯誤是因為字段名稱包含一個空格，即TRIP COST。

只需在命令生成器語句旁邊添加兩行。

commandBuilder.QuotePrefix =“ [”;

commandBuilder.QuoteSuffix =“]”;

這是編輯后的代碼。

 private void listBox9_SelectedValueChanged(object sender, EventArgs e)
{
    AppDomain.CurrentDomain.SetData("DataDirectory", Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData));
    connection = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=|DataDirectory|\\Trip Sheet Management System\\WABCO.mdb");
    sql = "SELECT ID,[TRIP COST] FROM TMSDETAILS";
    dataAdapter = new OleDbDataAdapter(sql, connection);
    dataTable = new DataTable();
    bindingSource = new BindingSource();
    connection.Open();
    dataAdapter.Fill(dataTable);
    bindingSource.DataSource = dataTable;
    dataGridView1.DataSource = bindingSource;
    connection.Close();
}


private void button8_Click(object sender, EventArgs e)
{

    commandBuilder = new OleDbCommandBuilder(dataAdapter);
    commandBuilder.QuotePrefix = "["; 
    commandBuilder.QuoteSuffix = "]";

    try
    {
        dataAdapter.Update(dataTable);
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
}

希望它能幫助別人。 :)