如何从SQL插入和检索数据到C#窗口

问题描述

请帮助.

我在strconnectionstring上遇到错误.

这段代码用于执行动作查询sqlcommand:

Please help.

I am getting an error on strconnectionstring.

This code is to execute action queries sqlcommand:

SqlConnection cnn = new SqlConnection();
            cnn.ConnectionString = strconnectionstring;
            cnn.Open();
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = cnn;
            cmd.CommandType = CommandType.Text;
            cmd.CommandText = "update measurementunit measurement=@measurment, mucode =@mucode";
            SqlParameter p1 = new SqlParameter("@measurment", txtmu.Text);
            SqlParameter p2 = new SqlParameter("@mucode", txtmucode.Text);
            cnn.Close();

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