[C#]提交表单

C#  Winform提交表表单的操作：

//登陆
        private void button1_Click(object sender, EventArgs e)
        {
            string name = textBox1.Text.Trim();
            WebClient w = new WebClient();
            System.Collections.Specialized.NameValueCollection VarPost = new System.Collections.Specialized.NameValueCollection();

            VarPost.Add("type", "denglu");
            VarPost.Add("name", name);
            byte[] byRemoteInfo = w.UploadValues("http://192.168.1.180/handler/CheckUserName.ashx", "POST", VarPost);
            string sRemoteInfo = System.Text.Encoding.UTF8.GetString(byRemoteInfo);
            textBox1.Text = sRemoteInfo;
        }
        //离开
        private void button2_Click(object sender, EventArgs e)
        {
            string name = textBox1.Text.Trim();
            WebClient w = new WebClient();
            System.Collections.Specialized.NameValueCollection VarPost = new System.Collections.Specialized.NameValueCollection();

            VarPost.Add("type", "likai");
            VarPost.Add("name", name);
            byte[] byRemoteInfo = w.UploadValues("http://192.168.1.180/handler/CheckUserName.ashx", "POST", VarPost);
            string sRemoteInfo = System.Text.Encoding.UTF8.GetString(byRemoteInfo);
            textBox1.Text = sRemoteInfo;
        }