Question

我想在gridview中显示电子邮件，解密密码和加密密码

  <asp:GridView ID="gvUsers" runat="server" AutoGenerateColumns="false"  OnRowDataBound="GridView1_RowDataBound">
 <Columns>
        <asp:BoundField DataField="Email" HeaderText="email" />
        <asp:BoundField DataField="Password" HeaderText=" encrypted password" />
        <asp:BoundField DataField="Password" HeaderText="decrypted password" />

    </Columns>
 </asp:GridView>

这是我绑定gridview的代码

   using (SqlCommand cmd = new SqlCommand("SELECT * FROM Memberships"))
            {
                using (SqlDataAdapter sda = new SqlDataAdapter())
                {
                    DataTable dt = new DataTable();
                    cmd.CommandType = CommandType.Text;
                    cmd.Connection = con;
                    sda.SelectCommand = cmd;
                    sda.Fill(dt);
                    gvUsers.DataSource = dt;
                    gvUsers.DataBind();
                }
            }

  protected void gvUsers_RowDataBound(object sender, GridViewRowEventArgs e)
    {
       if (e.Row.RowType == DataControlRowType.DataRow)
      {
           e.Row.Cells[2].Text = Decrypt(e.Row.Cells[2].Text);
       }
    }

    private string Decrypt(string cipherText)
    {
        string EncryptionKey = "MAKV2SPBNI99212";
        byte[] cipherBytes = Convert.FromBase64String(cipherText);
        using (Aes encryptor = Aes.Create())
        {
            Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(EncryptionKey, new byte[] { 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76 });
            encryptor.Key = pdb.GetBytes(32);
            encryptor.IV = pdb.GetBytes(16);
            using (MemoryStream ms = new MemoryStream())
            {
                using (CryptoStream cs = new CryptoStream(ms, encryptor.CreateDecryptor(), CryptoStreamMode.Write))
                {
                    cs.Write(cipherBytes, 0, cipherBytes.Length);
                    cs.Close();
                }
                cipherText = Encoding.Unicode.GetString(ms.ToArray());
            }
        }
        return cipherText;

    }

问题是，当我调用OnRowDataBound时，页面未运行且出现错误“无法复制文件pageName.dll”，因为找不到它。为什么会这样？如果我从gridview页面运行排除OnRowDataBound事件没有任何错误。但是对于密码解密，我必须调用OnRowDataBound。帮助

Answer 1

您的活动名称错误

替换下面的

  <asp:GridView ID="gvUsers" runat="server" 
       AutoGenerateColumns="false"  OnRowDataBound="GridView1_RowDataBound">

使用

  <asp:GridView ID="gvUsers" runat="server" 
       AutoGenerateColumns="false"  OnRowDataBound="gvUsers_RowDataBound">

希望这能解决你的问题。

GridView中的OnRowDataBound错误

1 个答案: