Question

enter image description here enter image description here我尝试将数据插入MS Access数据库。我的桌子名称是SignUp。

cmd.Parameters.Add("@name", OleDbType.VarChar).Value = txtNameSignUp.Text;
cmd.Parameters.Add("@surname", OleDbType.VarChar).Value = txtSurnameSignUp.Text;
cmd.Parameters.Add("@phone", OleDbType.VarChar).Value = txtPhoneSignUp.Text;
cmd.Parameters.Add("@mail", OleDbType.VarChar).Value = txtMailSignUp.Text;
cmd.Parameters.Add("@address", OleDbType.VarChar).Value = txtAddressSignUp.Text;
cmd.Parameters.Add("@username", OleDbType.VarChar).Value = txtUserNameSignUp.Text;
cmd.Parameters.Add("@password", OleDbType.VarChar).Value = txtPasswordSignUp.Text;
cmd.ExecuteNonQuery();
cnn.Close();
cnn = null;

我尝试(OleDBType.Binary).Value = Convert.ToByte(txtPhoneSignUp.Text);用于手机的文本框但后来却说“太大”或“太小”。

sorgu =“插入SignUp （[名]，[姓氏]，[电话]，[邮件]，[地址]，[用户名]，[密码]）值（@ name，@ surname，@ phone，@ mail，@ address，@ username，@ password）;“; cmd = new OleDbCommand（sorgu，cnn）;

        //cmd.Parameters.AddWithValue("@name", txtNameSignUp.Text);
        //cmd.Parameters.AddWithValue("@surname", txtSurnameSignUp.Text);
        //cmd.Parameters.AddWithValue("@phone", Convert.ToDouble(txtPhoneSignUp.Text));
        //cmd.Parameters.AddWithValue("@mail", txtMailSignUp.Text);
        //cmd.Parameters.AddWithValue("@address", txtAddressSignUp.Text);
        //cmd.Parameters.AddWithValue("@username", txtUserNameSignUp.Text);
        //cmd.Parameters.AddWithValue("@password", txtPasswordSignUp.Text);

        cmd.Parameters.Add("@name", OleDbType.VarChar).Value = txtNameSignUp.Text;
        cmd.Parameters.Add("@surname", OleDbType.VarChar).Value = txtSurnameSignUp.Text;
        cmd.Parameters.Add("@phone", OleDbType.VarChar).Value = 
        cmd.Parameters.Add("@mail", OleDbType.VarChar).Value = txtMailSignUp.Text;
        cmd.Parameters.Add("@address", OleDbType.VarChar).Value = txtAddressSignUp.Text;
        cmd.Parameters.Add("@username", OleDbType.VarChar).Value = txtUserNameSignUp.Text;
        cmd.Parameters.Add("@password", OleDbType.VarChar).Value = txtPasswordSignUp.Text;

            cmd.ExecuteNonQuery();
            cnn.Close();
            cnn = null;

Answer 1

对于OleDBType.Binary，您需要一个byte []，因此请将代码更改为

Encoding.ASCII.GetBytes（txtPhoneSignUp.Text）

OleDBException未被用户代码处理。错误消息：OverFlow

1 个答案: