Invalid postback or callback argument. - ASP.NET Discussion Boards

suggest privileges and permissions module.

Moustafa Safwat2-Sep-11 8:19

2-Sep-11 8:19

Dears,

I need from you to share thoughts and experiences with me about the following case:

I have a project it's business logic serves 3 entities, each entity should view some pages according to the business needs and may share some pages with the others entities.

Also inside the entity we have different types from users so some controls on the page should be accessed by some users and other not according to the role of user.

What I need exactly is to get the best architecture module for privileges and permissions and how to deal with menus, controls, files accessing, session issues and etc,.

Note: I use MS Membership and Role Provider. "You could suggest any other solution if it is better"

Best Regards

Re: suggest privileges and permissions module.

javadhelali5-Sep-11 18:42

javadhelali

5-Sep-11 18:42

i don't think there is better solution than asp.net membership provider for you !!
you need to use some asp.net controls to solve your problem :

ASP.NET

<asp:LoginView ID="LoginView1" runat="server">
    <RoleGroups>
        <asp:RoleGroup Roles="admin,fileadmin,contentadmin">
            <ContentTemplate>
                hello group 1 !
            </ContentTemplate>
        </asp:RoleGroup>
        <asp:RoleGroup Roles="admin">
            <ContentTemplate>
                hello admin !
            </ContentTemplate>
        </asp:RoleGroup>
    </RoleGroups>
</asp:LoginView>

for controlling file access you can use global.asax file to deny some users accessing to some files ...

custom controls and session object

Professional manpreet1-Sep-11 23:43

Professional manpreet

1-Sep-11 23:43

hiiiii i am manpreet
i m doing asp.net with c# web base applications
plz tell me about custom controls
and session objects and data with an example
, also tell me how to kill user session in asp.net Smile | :)

Re: custom controls and session object

koolprasad20032-Sep-11 21:28

koolprasad2003

2-Sep-11 21:28

Professional manpreet wrote:
how to kill user session in asp.net

user session can be kill using Session.Abandon()

Rating always..... WELCOME

The only reason people get lost in thought is because it's unfamiliar territory.

how to dir html text in rdlc report in correct format

md_refay1-Sep-11 21:57

md_refay

1-Sep-11 21:57

iam working in rdlc vs 2010
i have table in db tht have ntext column
that i stored text formatted in it something like that

'SAGJSHAGJAS GHDGJSAD SAFDHGFDHGD SDGDGDSFDHFD'

when i try to add this column in rdlc report it dir it not formatted
it dir it like
'SAGJSHAGJAS GHDGJSAD SAFDHGFDHGD SDGDGDSFDHFD'
so how i dir it formatted

md_refay

Re: how to dir html text in rdlc report in correct format

md_refay2-Sep-11 18:16

md_refay

2-Sep-11 18:16

double clickon the filed value for example say we want to dir address filed formated after we drag address filed into our report double click on it not in the textbox we 'll find markup type chnage to html

md_refay

repeate header doesn't repaet && no footer row

md_refay1-Sep-11 21:56

md_refay

1-Sep-11 21:56

this is my first use for rdlc in 20vs 2010
i used to work on it on vs2008
but it's differnet on vs2010
i have some problems
first i have note that when yiu drag table to rdlc it's create default group with header & no footer
i create group in my tabe
but i need reoprt page header & footer that repeat each page
but i can't do it

md_refay

Invalid postback or callback argument.

monu3646071-Sep-11 19:14

monu364607

1-Sep-11 19:14

Hi my code in asp is as follow

XML

<%@ Page Language="C#" MasterPageFile="~/loginmater.master" Title="Content Page" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    <script runat="server">

        protected void Button1_Click(object sender, EventArgs e)
        {
            if (uid.ToString() == "munna" && pwd.ToString() == "monu12345")
                Response.Redirect("loggedin.aspx");
            else
                Console.Write("invalid user or password");

        }
</script>

my aim is when we click on the button the script should execute by accepting the values and validate there itself.
but i'm getting an error " Invalid postback or callback argument". wat sholud be done to run the script and get the result

thanks & regards
pradeep.

How to enabled the dialog box in toolbox in asp.net

sathyan_82941-Sep-11 16:44

sathyan_8294

1-Sep-11 16:44

hai all,
I am using visual studio .net 2008,the dialog box are font dialog,color dialog are disabled in toolbox.How to enabled this?
Regards
D.Sathyanarayanan

http 400 error when trying to upload an Excel spreadsheet with macros

JimmyRopes1-Sep-11 3:07

JimmyRopes

1-Sep-11 3:07

I am receiving a HTTP 400 error when trying to upload an Excel spreadsheet with macros.

I am using an asp FileUpload control with the following server side script on the page:

ASP.NET

<asp:FileUpload ID="myFile" runat="server" Width="600"/>

<script runat="server" type="text/C#">

     protected void UploadFile(object src, EventArgs e)
     {
        Session["FileName"] = "";
        if (myFile.HasFile)
        {
            String strFileName = myFile.FileName;
            myFile.PostedFile.SaveAs(Server.MapPath("~/_systemname_uploads") + "/" + strFileName);
            Session["FileName"] = strFileName;
        } // if (myFile.HasFile)
     } // protected void UploadFile(object src, EventArgs e)
<script>

Spreadsheets with macros are a requirement for this application.

I am able to upload Excel spreadsheets without macros, but when the spreadsheet contains a macro the operation results in a HTTP 400 error.

Does anyone know how I can resolve this problem?

Simply Elegant Designs JimmyRopes Designs
Think inside the box! ProActive Secure Systems

I'm on-line therefore I am.
JimmyRopes

Change favicon doesn't work

md_refay31-Aug-11 23:04

md_refay

31-Aug-11 23:04

I have favicon on my website on the root.
I add this code to master page.

I change the favicon file, but it still shows the old icon. What is the problem?

this code in master page
iam working now on local host i didn't upload site yet

md_refay

Re: Change favicon doesn't work

Abhijit Jana1-Sep-11 1:05

Abhijit Jana

1-Sep-11 1:05

It could be the browser caching issue. Just close the browser and try it on new one. Or use Ctrl + F5.

Cheers !
Abhijit Jana | My Blog | @Twitter | Daily .Net Tips

Re: Change favicon doesn't work

GenJerDan1-Sep-11 4:06

GenJerDan

1-Sep-11 4:06

And, if not the browser itself, maybe a caching proxy server.

Just like that old Carly Simon song...
"You're so funny,
You probably think this joke is about you"

My Mu[sic]
My Films
My Windows Programs, etc.

Search Engine Controls With custom indexing

skampo31-Aug-11 22:43

skampo

31-Aug-11 22:43

Hi
Can anyone recommend a custom search engine control which allows you to specify the indexing. Namely has the ability to search through entire documents, just titles and possibly just authors. But must have the ability to search by all (like a standard search aswell). Some of the tools I've already been trying are the Keyoti Search for ASP.net which is great for general search btw. Also Karamasoft and findinsite but none have the options I require. Namely search just by title and then also be able to optionally search through content aswell. Also cannot be hosted!

I'm on the brink of building it from scratch but I want to exhaust all other options first.

Cheers

Re: Search Engine Controls With custom indexing

Mehdi Gholam4-Sep-11 6:44

Mehdi Gholam

4-Sep-11 6:44

If you feel adventurous you can implement search with lucene or my own hOOt project found here, the sample application is self explanatory and it is easy to get it up and running for a web site.

Its the man, not the machine - Chuck Yeager
If at first you don't succeed... get a better publicist

ASP.NET and DotNetCharting - Empty images created when using UpdatePanel

User 628146631-Aug-11 4:08

User 6281466

31-Aug-11 4:08

I have a aspx page with a number of DotNetCharting charts on it, some of these have controls to allow the source data on the chart to be changed causing a PostBack.

As only some of the Charts have this functionality they are in UpdatePanels so I don't have to re-create all the charts each time a PostBack occurs.

All the Charts are initialised by a common sub that sets their "TempDirectory" property to a directory under my app's root.

When the Page_Loads all the Charts are created correctly with their assoicated images in the TempDirectory I have specified.

Whenever a PostBack occurs to update the data in a Chart that Chart's Image is re-created in the TempDirectory as one would expect and the Chart is updated in its UpdatePanel - perfect.

However, empty "No Data" chart images are created at the app root for all the other charts each time an UpdatePanel is refreshed and DotNetCharting's housekeeping is not deleting them, as such a large number of "No Data" image files are accumulating in my app's root.

Any ideas anyone????

XML Data Source Control

trims3030-Aug-11 16:12

trims30

30-Aug-11 16:12

I have 3 different xml files .
I would like to be able to click on button 1,2 or 3 to display the contents of the corresponding xml file in a gridview control.

I have a string variable FILENAME that gets set in code on the appropriate button_click event to the proper xml file name.

The standard code for the xml data source is:

<asp:XmlDataSource ID="XmlDataSource1" runat="server"  DataFile="~/eqlist.xml">

The above works correctly but I want to swap data files.
I've tried the following method for changing file name with no success - just gets a Path Error:

<asp:XmlDataSource ID="XmlDataSource1" runat="server"  DataFile=<%"=FileName"%>>

I realize there's more to this project than I'm explaining here but this is current stumbling block.

Any suggestions as to what I'm doing wrong?

Lee

Re: XML Data Source Control

David Mujica31-Aug-11 9:14

David Mujica

31-Aug-11 9:14

In your code behind button click event, you can change the datafile for the XMLdataSource like this:

me.XmlDataSource1.DataFile = "myfile.xml"

Will that work for you ?

How to preview image before uploading..???

Tejas Vaishnav30-Aug-11 1:42

Tejas Vaishnav

30-Aug-11 1:42

I wanted to preview an image before uploading it to the server.
i used file upload control of asp.net

Re: How to preview image before uploading..???

Strange_Pirate28-Sep-12 3:16

Strange_Pirate

28-Sep-12 3:16

May i suggest you to do so .? Poke tongue | ;-P

Strange_Pirate

Child project not seeing web.config from parent

byka30-Aug-11 1:36

byka

30-Aug-11 1:36

Child project not seeing web.config from parent project

row clickable

netJP12L29-Aug-11 10:15

netJP12L

29-Aug-11 10:15

Hi,

I have hyperlinks in each of the table rows and user is tranfered to a different page upon clicking. What I would like to have instead is that they click on the row rather than the hyperlink. How could I do it, while still keeping those hyperlinks.

Thanks

Re: row clickable

Morgs Morgan30-Aug-11 4:54

Morgs Morgan

30-Aug-11 4:54

There other ways you could achieve this but it will mostly revolve around setting an onclick for your row(s). You could call a function javascript way or jQuery way thats ya choice.

ASP.NET

<table>
    <tr onclick="window.location='test.aspx'">
        <td>
            <asp:HyperLink NavigationUrl="test.aspx"></asp:HyperLink>
        </td>
    </tr>
</table>

Re: row clickable

mneale131-Aug-11 12:10

mneale1

31-Aug-11 12:10

Can you use the onselect action and determine the row you are on and then take the url from link cell in that row and go to that link?

Brother Miles

Re: row clickable

Morgs Morgan5-Sep-11 21:22

Morgs Morgan

5-Sep-11 21:22

Hi,
if you take a look, the tr onclick will take you to the link in the hyperlink below it.

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