Re: call a function from aspx in vs2008 - ASP.NET Discussion Boards

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Re: Problem loading a user control dynamically into a gridview and the controls events not triggering

Christian Graus11-Jun-08 5:24

Christian Graus

11-Jun-08 5:24

If you load a control during page load or later, then it won't exist early enough for viewstate to be restored, so no events will fire.

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Problem consuming a web service in C# :nullable object must have a value

highjo11-Jun-08 3:10

highjo

11-Jun-08 3:10

hello!
i'm trying to consume a web service writing by a friend in a networking environment.The web service is on the server (main) i tested it there and it is working.
the web reference was done withtout a single problem.
my code takes data from the request either post or get.
to make sure it's working i pass the data that is supposed to be collected by the request object and that one is working to.i also display the value of the querystring passed in my codewith the response.write and is all fine there too.but each time i'm passing the value to the function i see the error Nullable object must have a value.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: Nullable object must have a value.

Source Error:

Line 49:                    // responsemessage = "Dear Customer, bla bla bla";
Line 50:                     //sendResponse(number, responsemessage);
Line 51:                     decimal resp = (decimal)serv.getBalance(num, pin);
Line 52:                     Response.Write(resp);
Line 53:                     Response.Write(pin);

i debug it i they are not null and have the expected value.
i'm a lilte bit lost.and have this thing done before night. So i'll to have your opinion.
what do you think guys?

this are the codes

<br />
 protected void Page_Load(object sender, EventArgs e)<br />
    {<br />
        <br />
        string text = Request["text"];<br />
        string number = Request["number"];<br />
        //string responsemessage = "";<br />
       <br />
        string[] t;<br />
        //decimal resp =0;<br />
   <br />
        t = text.Split(new Char[] { ' ',',' });<br />
        dreamserve.iWalletMobileBasic serv = new dreamserve.iWalletMobileBasic();<br />
        if (t[0].Trim() != "")<br />
        {<br />
            if(t[0].ToLower() == "foo")<br />
            {<br />
                if(t[1].Trim() !="" && number.Trim()!="")<br />
                {<br />
                    string num = number.Trim();<br />
                    string pin = t[1].Trim();<br />
                    //Response.Write(serv.getBalance(num,pin));<br />
                   // responsemessage = "Dear Customer,bla bla bla";<br />
                    decimal resp = (decimal)serv.getBalance(num, pin);<br />
                    Response.Write(resp);<br />
                   <br />
                }<br />
            <br />
            }<br />
        }<br />
    }<br />

even if i use number and t[1] directly itsthe same i tough it's due to empty space,casting that why i created pin and num.i really don't know what is wrong Cry | :((

please if it's possible get to me as quick as possible.Thanks guys!

eager to learn

Re: Problem consuming a web service in C# :nullable object must have a value

Christian Graus11-Jun-08 5:26

Christian Graus

11-Jun-08 5:26

highjo wrote:
(decimal)serv.getBalance(num, pin);

Use decimal.TryParse to convert without it ever blowing up.

highjo wrote:
if (t[0].Trim() != "")
{
if(t[0].ToLower() == "foo")
{
if(t[1].Trim() !="" && number.Trim()!="")

Wow - this is messy.

how to host dropdown list in gridview?

Denver Thomas11-Jun-08 2:57

Denver Thomas

11-Jun-08 2:57

hi friends ,
In my current project I have to host a dropdown list in gridview control.How to do that ?.It will be very helpful if you are providing some codes or links.Thank you all in advance
Big Grin | :-D

Re: how to host dropdown list in gridview?

eyeseetee11-Jun-08 3:55

eyeseetee

11-Jun-08 3:55

Just include the following in your gridview:

<asp:TemplateField HeaderText="Update" Visible="true">
<ItemTemplate >
<asp:DropDownList ID="" runat="server" />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
<HeaderStyle HorizontalAlign="Center" />
</asp:TemplateField>

We are not a Code Charity

call a function from aspx in vs2008

thedom211-Jun-08 2:47

thedom2

11-Jun-08 2:47

can someone help with useful code i have the following in my codebehind

Public Function GetCust() As String
       Return Session("CustCode")
   End Function

And this in the aspx page

<asp:Label ID="Label1" runat="server" Text=<%# GetCust() %>  ></asp:Label>

Can someone please tell me how to fix this and not to do it another way as i have to implement this method. I have simplified the above to get the point across.

thanks i hope someone can help its annoying me badly..

Re: call a function from aspx in vs2008

Christian Graus11-Jun-08 5:27

Christian Graus

11-Jun-08 5:27

You should use <%= to get a string, <%# is for data binding statements.

thedom2 wrote:
Can someone please tell me how to fix this

Of course, you haven't said what needs to be fixed, so I am guessing blindly.

Anotehr thing is, don't ever do this:

thedom2 wrote:
Return Session("CustCode")

If you can't factor out all session access to a class, at LEAST store things like CustCode as constants, so you don't get a weird bug b/c somewhere else you typed Custcode instead.

Re: call a function from aspx in vs2008

thedom211-Jun-08 12:58

thedom2

11-Jun-08 12:58

thanks mate

Does images will be compressed while storing in database

rubobby11-Jun-08 2:47

rubobby

11-Jun-08 2:47

Hi all!

I had a doubt Sleepy | :zzz:

, Does images will be compressed while storing images in to the database?

iam using file upload control to upload the images into the database.
while uploading iam converting the image into byte streem.

AND ALSO TELL ME WHAT IS THE COMPRESSION RATIO(IF COMPRESSED).

AND TELL ME WHAT IS THE DEFAULT IMAGE SIZE IN SQL SERVER?

PLEASE GIVE ME THE INFORMATION.

raj

Re: Does images will be compressed while storing in database

eyeseetee11-Jun-08 3:53

eyeseetee

11-Jun-08 3:53

If I were you, I would store the file location of the images rather then the actual images in the datavbase. You will very quickly find that your database size balloons.

Im not sure if it compresses them, my guess is they wont compress

We are not a Code Charity

Re: Does images will be compressed while storing in database

Ashfield11-Jun-08 4:58

Ashfield

11-Jun-08 4:58

.netman wrote:
If I were you, I would store the file location of the images rather then the actual images in the datavbase

Definately the best way. Also saves the work of getting them back out of the database and displaying them.

Bob
Ashfield Consultants Ltd

Re: Does images will be compressed while storing in database

SteveNY11-Jun-08 5:44

SteveNY

11-Jun-08 5:44

No they don't. You would have to run your own compression method on the byte stream before stored into the db and reverse for retrieving them.

Re: Does images will be compressed while storing in database

Guffa11-Jun-08 8:35

Guffa

11-Jun-08 8:35

rubobby wrote:
Does images will be compressed while storing images in to the database?

The data that you store in the database will not be compressed, but for most common image formats (like jpeg, gif and png) the data is already compressed so you don't need any further compression.

rubobby wrote:
PLEASE GIVE ME THE INFORMATION.

Stop screaming.

Despite everything, the person most likely to be fooling you next is yourself.

Send mail with System.Net.Mail

Phrone11-Jun-08 2:44

Phrone

11-Jun-08 2:44

Hi.

First of all I think that I have to let you know that I never made any page in ASP.NET Smile | :)

We are running a XML based site on the local network and I will create a feedback form with XSL.
We have ASP.NET 2.0 running on another network server and I'm thinking of making a script that can send the mail from the form.
But I have no idea if this works?
How do I catch the data from the form?
The form method is POST.

Re: Send mail with System.Net.Mail

eyeseetee11-Jun-08 3:52

eyeseetee

11-Jun-08 3:52

Phrone wrote:
First of all I think that I have to let you know that I never made any page in ASP.NET

I guess you want to send simple e-mail using .net, try this:

http://www.aspheute.com/english/20000918.asp

We are not a Code Charity

Re: Send mail with System.Net.Mail

Phrone11-Jun-08 7:57

Phrone

11-Jun-08 7:57

That part is no problem, but I will use System.Net.Mail instead of System.Web.Mail that you linked to.
But how do I catch the POST variables in ASP.NET?
In PHP I can get them with $_POST['myFormField'] and I suppose that there are some way to get them in ASP.NET (C#) also.

Multiple Columns in ASP.Net Drop Down List ?

manish.singhal11-Jun-08 2:36

manish.singhal

11-Jun-08 2:36

hi frnds. I want to have a multiple columns in drop down box. It must give look of gridview in dropdowndox.........................
no shortcuts ..................like
select id + ' ' + name as idname from.............then binding
or value1 + value2 into dropdown box ...............................any one plz get some code...................plz try for c# if not possible then vb.net .........thnks a lot guyz ....................

Re: Multiple Columns in ASP.Net Drop Down List ?

eyeseetee11-Jun-08 3:50

eyeseetee

11-Jun-08 3:50

cant do this, Ive tried putting multiple columns in a dropdown and never found a way to do it.

We are not a Code Charity

Re: Multiple Columns in ASP.Net Drop Down List ?

manish.singhal11-Jun-08 23:18

manish.singhal

11-Jun-08 23:18

But i found some articles they have given some way i implement it its not working ............................thanks a lot for ur concern

Thanks & Regards
Manish Singhal
Software Engineer
Maxworth systems(Delhi)

popup window

trilokharry11-Jun-08 2:26

trilokharry

11-Jun-08 2:26

hlnkPhoto.Attributes.Add("onclick", "openwin('ZoomTemplates.aspx?TemplateId=" + dtTemplate.Rows[TblRowCnt]["StandardTemplateId"].ToString() + "&Type=Standard');");

hlnkPhoto.NavigateUrl = "#";

It is working fine means opening popup window but when I use above code in popup page then it is not opening popup page again.

thanks

You get the best out of others when you give the best of yourself.

Re: popup window

eyeseetee11-Jun-08 2:32

eyeseetee

11-Jun-08 2:32

Do you just want to refresh the same page again?
What are you trying to achieve?

We are not a Code Charity

Re: popup window

trilokharry11-Jun-08 2:38

trilokharry

11-Jun-08 2:38

again different page as popup window

You get the best out of others when you give the best of yourself.

Re: popup window

SomeGuyThatIsMe11-Jun-08 2:35

SomeGuyThatIsMe

11-Jun-08 2:35

you're probably bieng blocked by a popup blocker, IE has one built in and i've noticed that you can usually only open one popup, mabye 2 from a certain page. We have popup Help, and examples on our site and if you open help then try to view the examples, the code should open another window, but the examples page renders in the tab previously occupied by the Help. You could try disabling your popup blocker and see what happens, but i doubt you'd be able to get your users to do that for very long.

Alcohol the cause of and solution to all of life's problems.

Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Re: popup window

trilokharry11-Jun-08 2:41

trilokharry

11-Jun-08 2:41

popup is allowed in my browser.

You get the best out of others when you give the best of yourself.

Re: popup window

SomeGuyThatIsMe11-Jun-08 2:49

SomeGuyThatIsMe

11-Jun-08 2:49

In that case i'm nto sure, i havnt been able to get our site to show more than one popup window/tab(IE 7) per page. are you trying to automatically popup the new window, or is it a link...ctrl+clicking the link may work(sometimes IE and MS products ignore user settings and do what they please anyway) My only other idea is to make sure the javascript is bieng called correctly, i've had functions not be called because i forgot a capital C in the event name, but all other functions worked and were set up the same way on different controls. Sorry i couldnt be more help.

Alcohol the cause of and solution to all of life's problems.

Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

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