使用 C# windows 窗体将新记录插入 Ms Access 数据库时出现语法错误

Question

我有一个表单，用户可以在其中键入并从多个控件中进行选择，例如下拉列表、日期时间选择器、文本框、复选框等。在按钮单击事件中，我编写了以下过程以在 MS Access 数据库中插入新记录：代码：

private void InsertNewRecord()
    {


        txtLastUpdated.Text = DateTime.Today.ToString();
        using (var conn = new OleDbConnection(MTSConn))

        {
            using (var cmd = conn.CreateCommand())

            {
                cmd.CommandText = @"Insert Into Incoming_T (DocFrom, CntrTeam, To, ReferenceNo, Subject, Review, Type, DocDate, RcvdDate, ProjectRef, DIMSNo, DIMSLink, SnrEng,    MailStatus, Comments, LogRegID, RegisteredBy, UpdatedBy, LastUpdated, ForInf, ForReview, ForApp, ForComnt, ForHndlng, ForAct) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?,  ?, ?, ?, ?)";

                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 100) { Value = cbxFrom.SelectedValue });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 20) { Value = cbxTo.SelectedValue });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 100) { Value = cbxTo.Text });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 50) { Value = txtReference.Text });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 200) { Value = txtSubject.Text });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 1) { Value = cbxReview.Text });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 10) { Value = cbxDocType.SelectedValue });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.Date, 8) { Value = dtpDocDate.Value });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.Date, 8) { Value = dtpRcvDate.Value });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 20) { Value = cbxProject.SelectedValue });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 15) { Value = txtDIMS.Text });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 255) { Value = txtDIMLink.Text });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 10) { Value = cbxSnrEngr.SelectedValue });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 20) { Value = cbxStatus.Text });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 255) { Value = txtComments.Text });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.Integer, 4) { Value = Convert.ToInt32(txtRegID.Text) });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 50) { Value = txtRegBy.Text });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.VarChar, 50) { Value = txtUpdatedBy.Text });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.Date, 8) { Value = Convert.ToDateTime(txtLastUpdated.Text) });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.Boolean, 1) { Value = Convert.ToBoolean(chkInf.Checked) });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.Boolean, 1) { Value = Convert.ToBoolean(chkRw.Checked) });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.Boolean, 1) { Value = Convert.ToBoolean(chkApp.Checked) });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.Boolean, 1) { Value = Convert.ToBoolean(chkComm.Checked) });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.Boolean, 1) { Value = Convert.ToBoolean(chkHandl.Checked) });
                cmd.Parameters.Add(new OleDbParameter("?", OleDbType.Boolean, 1) { Value = Convert.ToBoolean(chkAct.Checked) });


                try
                {
                    conn.Open();

                    cmd.ExecuteNonQuery();
                    MessageBox.Show("Recored Inserted Successfully!");
                }
                catch (Exception ex)
                {

                    MessageBox.Show(ex.Message);
                }

            }
        }

    }

将记录插入 Access 数据库时出现语法错误。 我也试过这段代码，但同样的问题：

private void InsertNewRecord()
    {
        txtLastUpdated.Text = DateTime.Today.ToString();
        using (OleDbConnection conn = new OleDbConnection(MTSConn))

        {
            using (OleDbCommand cmd = new OleDbCommand())

            {
                .
                .
                .
            }
       } 

我的表格看起来像这样：

我错过了什么吗？

Answer 1

“类型”是Access 中的保留字，因此您必须在查询中将其括在方括号中：

Insert Into Incoming_T (DocFrom, CntrTeam, To, ReferenceNo, Subject, Review, 
        [Type], DocDate, RcvdDate, ProjectRef, DIMSNo, DIMSLink, SnrEng,
        MailStatus, Comments, LogRegID, RegisteredBy, UpdatedBy, LastUpdated,
        ForInf, ForReview, ForApp, ForComnt, ForHndlng, ForAct) 
 VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?,  ?, ?, ?, ?)";