asp.net - Why am I getting incorrect syntax near `username`? -

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<पूर्व> सार्वजनिक आंशिक वर्ग adduser: System.Web.UI.Page {SqlConnection con = new SqlConnection (@ "डेटा स्रोत = (लोकलडीबी) \ v11.0; अटैचडीबीफ़िलननाम = | डेटा डायरेक्टरी | \ डेटाबेस। एमडीएफ; एकीकृत सुरक्षा = सच "); SqlCommand सीएमडी = नया एसक्यूएल कॉमांड ("प्रवेश मूल्यों में डालें उपयोगकर्ता नाम = @ संयुक्त राष्ट्र, पासवर्ड = @ पी एस, सीक्रिरिटी_क्वी = @ एसएसी, एएन = @ उत्तर, यूजरर्ट = @ यूटीपी"); सुरक्षित शून्य पृष्ठ_ऑलोड (ऑब्जेक्ट प्रेषक, इवेंटएरग्स ई) {} सुरक्षित वॉएड बटन 2_Click (ऑब्जेक्ट प्रेषक, इवेंटएआरजीएस ई) {cmd.Connection = con; अगर (कॉन। स्टेट! = सिस्टम.डेटा.कनेक्शनस्टाट। ओपन) कॉन ओपन (); स्ट्रिंग un = txtusername.Text.Trim (); स्ट्रिंग ps = txtpass.Text.Trim (); स्ट्रिंग sq = txtseq.Text.Trim (); स्ट्रिंग उत्तर = टीटीटेंस। टेक्स्ट। रिम (); स्ट्रिंग ustp = DropDownList1.SelectedValue; cmd.Parameters.Clear (); Cmd.Parameters.AddWithValue ("un", un); Cmd.Parameters.AddWithValue ("ps", ps); Cmd.Parameters.AddWithValue ("वर्ग", वर्ग); Cmd.Parameters.AddWithValue ("उत्तर", उत्तर); Cmd.Parameters.AddWithValue ("ustp", ustp); // स्ट्रिंग qry = "लॉगिन मानों में डालें (उपयोगकर्ता नाम = '" + txtusername.Text + "', password = '" + txtpass। पाठ + "', क्रमिकता_कोर = '" + टीएक्सटीईक। टेक्स्ट + "', एएन = ' "+ Txtans.Text +" ', usertype =' "+ ड्रॉपडाउन लिस्ट 1। चुने गए वैल्यू +" ') "; // SqlCommand md = नया SqlCommand (qry, con); Int n = cmd.ExecuteNonQuery (); यदि (n & gt; 0) {Response.Write ("उपयोगकर्ता जोड़ा गया"); } Else {Response.Write ("असफल"); }}}}

यह सही कोड INSERT में है : 

  SqlCommand cmd = new SqlCommand ("लॉगिन (उपयोगकर्ता नाम, पासवर्ड, sequirity_que, ans, usertype) मानों में डालें (@un, @ps, @sq, @answer, @ustp) ");


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