Hi,

I have good news and bad news.

The good news is that I am now able to display the Password field in the GridView (List.aspx). Since this field is binary (byte[]) in the database and DD does not have support for binary data, I have created a new FieldTemplate called Binary.ascx. Here is the code.

I use a UIHint in the domain service metadata class to use the new binary control.

 [UIHint("Binary")]
 public byte[] Password { get; set; } 

Binary.ascx

<%@ Control Language="C#" CodeBehind="Binary.ascx.cs" Inherits="MarsUserManager.BinaryField" %>

<asp:Literal runat="server" ID="Literal1"/>

 Binary.ascx.cs

public partial class BinaryField : FieldTemplateUserControl
{
       
        protected override void OnDataBinding(EventArgs e)
        {
            base.OnDataBinding(e);

            if (this.FieldValue == null)
            {
                return;
            }

            Literal1.Text = MarsUserManager.Utils.Tools.DecryptPassword((byte[])FieldValue).Replace("\0", "");

        }

        //public override string FieldValueString
        //{
        //   ....
        //   
        //}

        public override Control DataControl
        {
            get
            {
                return Literal1;
            }
        }

}

Please note that I have removed the override string FieldValueString from the because I seem not to need it in there. Instead I have used the FieldValue to set the value of the Literal control.

1 - Is this all right? Please correct me if I am wrong.

This seems to be working well.

The problem starts with the Edit.aspx. I have created a Binary_Edit.ascx to display the Password binary field when in edit mode. I display it in a text box for editing:

Binary_Edit.ascx

<%@ Control Language="C#" CodeBehind="Binary_Edit.ascx.cs" Inherits="MarsUserManager.BinaryEditField" %>

<asp:TextBox ID="TextBox1" runat="server" CssClass="DDTextBox"></asp:TextBox>

<asp:RequiredFieldValidator runat="server" ID="RequiredFieldValidator1" CssClass="DDControl DDValidator" ControlToValidate="TextBox1" Display="Static" Enabled="false" />
<asp:RegularExpressionValidator runat="server" ID="RegularExpressionValidator1" CssClass="DDControl DDValidator" ControlToValidate="TextBox1" Display="Static" Enabled="false" />
<asp:DynamicValidator runat="server" ID="DynamicValidator1" CssClass="DDControl DDValidator" ControlToValidate="TextBox1" Display="Static" />
<asp:DomainValidator runat="server" ID="DomainValidator1" CssClass="DDControl DDValidator" Display="Static" />

 Binary_Edit.ascx.cs

 public partial class BinaryEditField : FieldTemplateUserControl
 {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (Column.MaxLength < 20)
            {
                TextBox1.Columns = Column.MaxLength;
            }
            TextBox1.ToolTip = Column.Description;

            SetUpValidator(RequiredFieldValidator1);
            SetUpValidator(RegularExpressionValidator1);
            SetUpValidator(DynamicValidator1);
            this.SetUpDomainValidator(DomainValidator1);
            SetUpValidator(DomainValidator1);
        }

        protected override void OnDataBinding(EventArgs e)
        {
            base.OnDataBinding(e);
            if (Column.MaxLength > 0)
            {
               
                TextBox1.MaxLength = Math.Max(FieldValueEditString.Length, Column.MaxLength);
            }

            var temp = MarsUserManager.Utils.Tools.DecryptPassword((byte[])FieldValue).Replace("\0", "");

            TextBox1.Text = temp;
        }

        protected override void ExtractValues(IOrderedDictionary dictionary)
        {
            //dictionary[Column.Name] = ConvertEditedValue(TextBox1.Text);
            dictionary[Column.Name] = MarsUserManager.Utils.Tools.EncryptPassword(TextBox1.Text);
        }

        public override Control DataControl
        {
            get
            {
                return TextBox1;
            }
        }

    }
}

I have also created a tblUser_Edit.ascx web control under the EntityTemplates folder so that I can limit the fields to display for editing:

tblUser_Edit.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="tblUser_Edit.ascx.cs" Inherits="MarsUserManager.DynamicData.EntityTemplates.tblUser_Edit" %>

<tr>
    <td>Name: </td>
    <td><asp:DynamicControl Mode="Edit" runat="server" DataField="FirstName" ID="fname"  ></asp:DynamicControl></td>
</tr>

<tr>
    <td>Password: </td>
    <td>
        <asp:DynamicControl Mode="Edit" runat="server" DataField="Password" ID="DynamicControl3" />
    </td>
</tr>

tblUser_Edit.ascx.cs 

 public partial class tblUser_Edit : System.Web.DynamicData.EntityTemplateUserControl
 {
        protected void Page_Load(object sender, EventArgs e)
        {
          

        }
 }

The password is shown in the text box fine.

However, when I click the update link button in the Edit.aspx page I get an error straight away and an asterisk beside the Password text box:

List of validation errors
•The value is not valid.

Password:   aaa111    *

2 - I cannot figure out what is wrong. Can someone shed some light?

I have tried commenting out the SetUpValidator method in the Binary_Edit.ascx.cs to see if I could see a better error message

//SetUpValidator(RequiredFieldValidator1);
//SetUpValidator(RegularExpressionValidator1);
//SetUpValidator(DynamicValidator1);

//this.SetUpDomainValidator(DomainValidator1);
//SetUpValidator(DomainValidator1);

I got this error:

List of validation errors
•The data has been deleted in the underlying store.
•The data has been deleted in the underlying store.

Password:   aaa111          The data has been deleted in the underlying store. 

I would appreciate very much if someone could help me to sort this out. I could send my whole project if someone is willing and kind to have a look at it if it is easier that way.

Cheers

C