user login code

Question

A user login when successfull login then will shown his profile on next page from sql database in c# asp.net

Satyapriya Nayak · Answer

Login.aspx Untitled Page function Validate() { var UName=document.getElementById('TextBox_user_name'); var Password=document.getElementById('TextBox_password'); if((UName.value=='') || (Password.value=='')) { alert('UserName or Password should not be blank'); return false; } else { return true; } } BackColor="#CCFF99" OnClientClick="Validate()" onclick="btn_login_Click" /> Login.aspx.cs using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Data.SqlClient; namespace Login_related_details { public partial class Login : System.Web.UI.Page { string strConnString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString; SqlCommand com; SqlDataAdapter sqlda; string str; DataTable dt; int RowCount; protected void btn_login_Click(object sender, EventArgs e) { string UserName = TextBox_user_name.Text.Trim(); string Password = TextBox_password.Text.Trim(); SqlConnection con = new SqlConnection(strConnString); con.Open(); str = "Select * from Login"; com = new SqlCommand(str); sqlda = new SqlDataAdapter(com.CommandText, con); dt = new DataTable(); sqlda.Fill(dt); RowCount = dt.Rows.Count; for (int i = 0; i { UserName = dt.Rows[i]["UserName"].ToString(); Password = dt.Rows[i]["Password"].ToString(); if (UserName == TextBox_user_name.Text && Password == TextBox_password.Text) { Session["UserName"] = UserName; Response.Redirect("Details.aspx"); } else { lb1.Text = "Invalid User Name or Password! Please try again!"; } } } } } Details.aspx Untitled Page User Details Name:   ID="lbl_UserName" runat="server" Font-Bold="True"> Address:   ID="lbl_address" runat="server" Font-Bold="True"> Salary:   ID="lbl_sal" runat="server" Font-Bold="True"> Phone:   ID="lbl_phone" runat="server" Font-Bold="True"> Details.aspx.cs using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Data.SqlClient; namespace Login_related_details { public partial class Details : System.Web.UI.Page { string strConnString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString; string str; SqlCommand com; protected void Page_Load(object sender, EventArgs e) { lb1.Text = " " + "WELLCOME:: " + " " + " " + Session["UserName"] + " "; SqlConnection con = new SqlConnection(strConnString); con.Open(); str = "select * from Login where UserName='" + Session["UserName"] + "'"; com = new SqlCommand(str, con); SqlDataAdapter da = new SqlDataAdapter(com); DataSet ds = new DataSet(); da.Fill(ds); lbl_UserName.Text = ds.Tables[0].Rows[0]["UserName"].ToString(); lbl_address.Text = ds.Tables[0].Rows[0]["address"].ToString(); lbl_sal.Text = ds.Tables[0].Rows[0]["sal"].ToString(); lbl_phone.Text = ds.Tables[0].Rows[0]["phone"].ToString(); } } }

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