Change password code using asp.net with c#

Hi Guys,

 This blog we explain how to change current password using asp.net with c# .

 For do that first we fetch the current password and match it with newpassword . If current password new same with new password then it will change the password.

Changepassword.aspx file

<table class="auto-style1">

                    <tr>

                        <td class="auto-style5">

                            <asp:Label ID="Label1" runat="server" Font-Bold="True" Text="CurrentPassWord"></asp:Label>

                        </td>

                        <td>

                            <asp:TextBox ID="txtCurrentPassWord" runat="server" TextMode="Password"></asp:TextBox>

                        </td>

                    </tr>

                    <tr>

                        <td class="auto-style5">

                            <asp:Label ID="Label2" runat="server" Font-Bold="True" Text="NewPassWord"></asp:Label>

                        </td>

                        <td>

                            <asp:TextBox ID="txtNewPassWord" runat="server" TextMode="Password"></asp:TextBox>

                        </td>

                    </tr>

                    <tr>

                        <td class="auto-style5">

                            <asp:Label ID="Label3" runat="server" Font-Bold="True" Text="ConfirmPassWord"></asp:Label>

                        </td>

                        <td>

                            <asp:TextBox ID="txtConfirmPassWord" runat="server" TextMode="Password"></asp:TextBox>

                        </td>

                    </tr>

                    <tr>

                        <td class="auto-style5">

                            &nbsp;</td>

                        <td>

                            <asp:ImageButton ID="ImageButton1" runat="server" ImageUrl="~/Images/submit.png" OnClick="ImageButton1_Click1" Width="81px" />

                            <asp:ImageButton ID="ImageButton2" runat="server" Height="21px" ImageUrl="~/Images/Reset.png" OnClick="ImageButton2_Click1" Width="137px" />

                            </td>

                       

                    </tr>

                    <tr>

                        <td class="auto-style5">&nbsp;</td>

                        <td>

                            <asp:Label ID="lblMsg" runat="server" Text="Msg"></asp:Label>

                        </td>

                    </tr>

                </table>

            </td>

            <td>&nbsp;</td>

        </tr>

    </table>

</asp:Content>

Changepassword.aspx.cs file

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data;

using System.Data.SqlClient;

using System.Configuration;

using System.Drawing;

public partial class ChangePassword : System.Web.UI.Page

{

    SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["123"].ConnectionString);

    protected void Page_Load(object sender, EventArgs e)

    {

    }

    protected void ImageButton1_Click1(object sender, ImageClickEventArgs e)

    {

     SqlCommand cmd = new SqlCommand("select count(PassWord) from userregister where PassWord ='"+txtNewPassWord.Text+"'",con);

        con.Open();

        //cmd = new SqlCommand(con);

        int myint = Convert.ToInt32(cmd.ExecuteScalar());

        con.Close();

        if(myint > 0)

        {

            lblMsg.ForeColor = Color.Red;

            lblMsg.Text = "Already Exists";

            return;

        }

        try

        {

            string up;

            up = "Update userregister set PassWord ='" + txtNewPassWord.Text + "' where PassWord ='" + txtCurrentPassWord.Text + "'";

            cmd = new SqlCommand(up, con);

            con.Open();

            cmd.ExecuteNonQuery();

            con.Close();

            lblMsg.ForeColor = Color.Green;

            lblMsg.Text = "Successfully change your password";

        }

        catch (Exception ex)

        {

            lblMsg.Text = ex.Message;

        }

    }

   

    protected void ImageButton2_Click1(object sender, ImageClickEventArgs e)

    {

    }

}