我正在测试我的程序,以及何时执行了vs vs没有任何错误执行! 这是我的代码:安装应用程序后出现错误插入查询
private void button1_Click(object sender, EventArgs e)
{
OleDbConnection conect = new OleDbConnection();
conect.ConnectionString = "provider=microsoft.jet.oledb.4.0;" + "data source=university.mdb;Jet OLEDB:Database [email protected]";
conect.Open();
OleDbCommand o1 = new OleDbCommand();
o1.Connection = conect;
if(button1.Text=="save")
o1.CommandText = "insert into check_user(name_user,pw_user)values('" + textBox1.Text + "','" + textBox2.Text + "')";
else
o1.CommandText = " select * from check_user WHERE (name_user = '" + textBox1.Text + "') and (pw_user = '" + textBox2.Text + "')";
o1.ExecuteNonQuery();
if (button1.Text != "save")
{
if (o1.ExecuteScalar() == null)
MessageBox.Show("wrong user");
else
{
groupBox1.Visible = false;
menuStrip1.Visible = true;
}
}
else
{
groupBox1.Visible = false;
menuStrip1.Visible = true;
}
conect.Close();
}
但时将执行安装后的应用程序和运行发生此查询错误: http://s4.picofile.com/file/8184692692/qq.png 任何查询选择的执行没有错误,但查询插入或删除出现此错误 请帮我
检查连接字符串.. –
连接没有任何问题。在测试vs时,任何错误都不存在,但是在运行时安装错误发生在查询插入和删除 –