ASP.NET

9-Aug-10 2:08

It doesn't need to be in edit mode, and you can use JavaScript

I know the language. I've read a book. - _Madmatt

Calling Event in VB.nET

yogesh_kumar_agarwal8-Aug-10 15:42

8-Aug-10 15:42

C# Code

this.Dispatcher.BeginInvoke(delegate()
{
  PropertyChanged(this, new PropertyChangedEventArgs("FileLength"));
});

VB.NET Code

Me.Dispatcher.BeginInvoke(Function() Do
    RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs("FileLength"))
End Function)

But it is not working i tried the code convert for the same, then did google also but unable to get the correct syntax.
Plz help

Not Active8-Aug-10 17:07

8-Aug-10 17:07

VB.NET doesn't support anonymous delegates so there is no direct conversion of this.

http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/08c82be8-bf9a-4a03-b366-b2d8c503e1d1[^]

I know the language. I've read a book. - _Madmatt

yogesh_kumar_agarwal8-Aug-10 19:24

8-Aug-10 19:24

So what is the way to do the same. the senerio is

i have a delegate defind say "ProgressChangedEvent"

i my class i have a event "UploadProgressChanged" of type "ProgressChangedEvent"

now RaiseEvent ProgressChangedEvent(me,args) working fine for me, but i want the asyncronous call, so want to use.

dispature.beginInvoke( <event call="">)

so how could i call the event.

Thanks Plz help...

Dave Doknjas9-Aug-10 12:40

Dave Doknjas

9-Aug-10 12:40

Drop the "Do" - this is a bug in the converter you used.

You can drop the 'End Function' since it's just a single statement.
Which version of VB are you using?
If you're using VB10 (VS 2010), change the 'Function' to 'Sub' since nothing is being returned.

David Anton
Convert between VB, C#, C++, & Java
www.tangiblesoftwaresolutions.com

yogesh_kumar_agarwal10-Aug-10 21:17

10-Aug-10 21:17

Hi David,

Thanks for the reply is am using VS2008 SP1.

My Code is like below

Me.Dispatcher.BeginInvoke(Function() Do
RaiseEvent PropertyChanged(Me,New PropertyChangedEventArgs("UploadPercent"))
End Function)

As per your instructions i have change it to

Me.Dispatcher.BeginInvoke(Sub 
RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs("UploadPercent"))
)

But it is again not working for me....
Possible solution???

Thanks

Dave Doknjas11-Aug-10 4:56

Dave Doknjas

11-Aug-10 4:56

For 2008, you'll need:

Me.Dispatcher.BeginInvoke(Function() AnonymousMethod1())

Private Function AnonymousMethod1() As Object
	PropertyChanged(Me, New PropertyChangedEventArgs("FileLength"))
	Return Nothing
End Function

David Anton
Convert between VB, C#, C++, & Java
www.tangiblesoftwaresolutions.com

Count function

yogesh_kumar_agarwal7-Aug-10 20:03

Re: Validation(Please help)

7-Aug-10 20:03

Dear All,

This is a c# code working fine in, Where files is a genric collection.

<br />
files.Count(f => f.Status == FileUploadStatus.Uploading || f.Status == FileUploadStatus.Resizing)<br />

i convert the same in vb.net using some convertion tools, and i got

<br />
files.Count(Function(f) f.Status = FileUploadStatus.Uploading OrElse f.Status = FileUploadStatus.Resizing)<br />

and its not working, got the error like

ReadOnly Property Count() As Integer' has no parameters and its return type cannot be indexed.

So plz help and let me know what is wrong i m doing here with possible solution.

Thanks

Re: Count function

Estys7-Aug-10 21:06

Estys

7-Aug-10 21:06

As far as I know, you can't use anonymous delegates in VB.NET, you have to create a named function.
http://visualbasic.about.com/od/usingvbnet/a/lambdaexpr.htm[^]
I hope this solves your problem.

Cheers

^I _don't like ^my _signature at ^all

Validation

future38397-Aug-10 6:23

future3839

7-Aug-10 6:23

Hi every1,
I know the approaches for validating data. I went through some articles regarding validating. I face with a problem when I implementing them.
if I use the following code there is no problem.easily I can raise the error.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;
using System.ComponentModel.DataAnnotations;

namespace MvcApplication1.Models
{
    public class GuestResponse
    {
        public string _email;

        [Required(ErrorMessage = "Please enter your email address")]
        [RegularExpression(".+\\@.+\\..+",
        ErrorMessage = "Please enter a valid email address")]
        public string Email
        {
            set { _email = value; }
            get { return _email; }
        }

         public GuestResponse()
        {
        }
        
        public GuestResponse(string email)
        {
            this._email = email;
        }       
    }
}

I am using another approach which is attribute and methods. when I defined a class through an exception I validate my data.but the problem is I cant show them on the screen. when the exception raise it goes to the line of exception while I wanna show the message on the screen.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;
using System.ComponentModel.DataAnnotations;

namespace MvcApplication1.Models
{
    public class GuestResponse
    {
        public string _name;

        public string Name
        {
            set 
            { 
               
                if (value == null)
                {
                    throw new ArgumentException(string.Format("Enter a value."));
                } else
                     _name = value;
            }

            get { return _name; }
        }

        public GuestResponse()
        {
        }
        
        public GuestResponse(string name, string email, string phone, Boolean attend)
        {
            this._name = name;

        }
   
    }
}

Could you please help me out how to fix this problem?
thanx in advance.

Re: Validation

Sandeep Mewara7-Aug-10 7:12

Sandeep Mewara

7-Aug-10 7:12

1. Remove your previous question before someone replies to it. Looks like by-miskate you posted that.
2. You need to catch the exception and then show it a messagebox or a label (on screen.)

future38397-Aug-10 10:17

future3839

7-Aug-10 10:17

thx for your reply. I went through an article. but its different apart from what you said.could you please have a look to this article and then give me an example.
in this article it talks about validation's approaches.
http://imar.spaanjaars.com/477/n-layered-web-applications-with-aspnet-35-part-2-introducing-the-validation-framework[^]

MasterPages and Flash menu

Farraj7-Aug-10 5:31

7-Aug-10 5:31

Hello,

I have a flash menu that includes category links to my aspx pages(and sub-categories). This flash menu is located on a MasterPage, and all of my content is inside a content place holder.

Whenever i click an item in the flash menu, the flash reloads itself while entering the page, which is absolutely normal.

I tried using Frameset in .Net it didnt work for me. tried also the UpdatePanel also didnt work, maybe I've done something wrong in there or whatsoever.

Can anybody tell me please how to do this so the flash menu wont reload each time i click an item?

Thanks.

Not Active7-Aug-10 11:01

7-Aug-10 11:01

How are you using the iframe and UpdatePanel? Anything that causes a postback will of course cause the page to reload and hence the Flash.

I know the language. I've read a book. - _Madmatt

Farraj7-Aug-10 11:21

7-Aug-10 11:21

i used the UpdatePanel by draging it to the masterpage and inside of it i draged my flash control, and pointed a trigger to the contentplaceholder. but that didnt work for me
about the Iframe.. im not sure if i did it the right way.

Not Active7-Aug-10 11:30

7-Aug-10 11:30

Farraj wrote:
im not sure if i did it the right way

Neither am I, my mind reading ability is only good within 3 meters of someone. Roll eyes | :rolleyes:

Perhaps if you showed some code we could help.

I know the language. I've read a book. - _Madmatt

Farraj7-Aug-10 12:05

7-Aug-10 12:05

update panel:

masterpage cs code

protected void Page_Load(object sender, EventArgs e)
   {
       if (!IsPostBack)
       {
           ScriptManager1.RegisterAsyncPostBackControl(ContentPlaceHolder1);
       }
   }

aspx code:

<form id="form1" runat="server">
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <uc2:menu1 ID="menu11" runat="server" />
    </ContentTemplate>
    <Triggers>
        <asp:AsyncPostBackTrigger ControlID="ContentPlaceHolder1" />
    </Triggers>
</asp:UpdatePanel>
</form>

hmm...?

Not Active7-Aug-10 12:35

7-Aug-10 12:35

"Controls that are triggers for an update panel cause a refresh of the panel's content after an asynchronous postback." http://msdn.microsoft.com/en-us/library/system.web.ui.asyncpostbacktrigger.aspx[^]

So what you have configured is having the ContentPlaceHolder trigger a refresh of the UpdatePanel; however, I believe you want the reverse. Also, since ContentPlaceHolder has no events that can be triggered, nothing will happen. Finally, RegisterAsyncPostBackControl is the code behind is unnecessary since you have already specified it in the markup.
As a matter of convention ScriptManager is usually added to the top of the form.

<form id="form1" runat="server">

      <asp:ScriptManager ID="ScriptManager1" runat="server">
      </asp:ScriptManager>

<uc2:menu1 ID="menu11" runat="server" />

      <asp:UpdatePanel ID="UpdatePanel1" runat="server">
          <ContentTemplate>
      <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
      </asp:ContentPlaceHolder>              
          </ContentTemplate>
          <Triggers>
              <asp:AsyncPostBackTrigger ControlID="menu1" />
          </Triggers>
      </asp:UpdatePanel>

      </form>

I know the language. I've read a book. - _Madmatt

Farraj7-Aug-10 12:53

7-Aug-10 12:53

im trying this. but at the Triggers i cant point it to the Menu, i only can point it to the content placeholder

..?

Farraj10-Aug-10 5:24