ASP.NET

Re: How to avoid reinitialization of variables in page load

6-Sep-09 18:28

Once your page has done it's work ( such as deleting a row ), redirect it to itself. That way, if you refresh, it will reload the page without regenerating the event.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

amittinku6-Sep-09 18:52

amittinku

6-Sep-09 18:52

I am trying to implement your idea but does not work.
Can u give an example or 1-2 liner snippet of code.
Again summarizing my requirement:
1. I should be able to delete the rows one by one in disconnected mode.
2. After deleting one row from disconnected, I am not making any chnages to live(connected) database.

Re: How to avoid reinitialization of variables in page load

Christian Graus6-Sep-09 19:22

data insertion in gridview

6-Sep-09 19:22

Oh - I see. You want to delete lines from visibility, but NOT from the database AT ALL ? How bizarre.

I guess you need to transfer your data to viewstate on first read, and then manipulate it from there, without ever referencing your data source again.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

swtlibra6-Sep-09 17:28

swtlibra

6-Sep-09 17:28

i m using C#.net application with access database

i want display the data in grid view from multiple tables

like

the column should display "serial number" from table1 and second column sholud display "Name" from table2 and so on

any idea how to cater multiple tables with the gridview

thanks

Abhijit Jana6-Sep-09 18:16

Abhijit Jana

6-Sep-09 18:16

swtlibra wrote:
how to cater multiple tables with the gridview

You have to write a simple query for that, which will retreive data from two table based on join condition. Output of the query would be the source of GridView.

Thanks !

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.

Christian Graus6-Sep-09 18:19

6-Sep-09 18:19

You should buy a basic book or two before attempting this task, you need to cover some basics, or you're going to keep hitting the same brick walls.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

mylogics6-Sep-09 20:10

mylogics

6-Sep-09 20:10

just use join query n make bnind it with grid view....

Vimalsoft(Pty) Ltd6-Sep-09 20:21

Vimalsoft(Pty) Ltd

6-Sep-09 20:21

look at this

Coding an N-Tier Application in C# Without Any Wizard: Part II[^]

Vuyiswa Maseko,

Few companies that installed computers to reduce the employment of clerks have realized their expectations.... They now need more and more expensive clerks even though they call them "Developers" or "Programmers."

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.com
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

webservice

farokhian6-Sep-09 11:22

farokhian

6-Sep-09 11:22

I create a webservice and when i build it , "Build Succeeded"
but when i run it it has a error in IE .what shoud i do?
The error in IE is :

The XML page cannot be displayed
Cannot view XML input using XSL style sheet. Please correct the error and then click the Refresh button, or try again later.

--------------------------------------------------------------------------------

A name was started with an invalid character. Error processing resource 'http://localhost/TemperatureWebService/Convert.asm...

<%@ WebService Language="C#" CodeBehind="~/App_Code/Convert.cs" Class="Convert" %>
-^

Abhishek Sur6-Sep-09 12:15

6-Sep-09 12:15

Does it consumed properly by any client? Confused | :confused:

I think there must be some problem with the WSDL. Check the WSDL generated with the web service, and find if there is something missing. Also check the WebService interface.

Abhishek Sur

My Latest Articles
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C# Uncommon Keywords
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farokhian6-Sep-09 21:00

farokhian

6-Sep-09 21:00

yesterday i ask you about the webservice and you guide me to this link:

//msdn.microsoft.com/en-us/library/8wbhsy70%28VS.80%29.aspx#Mtps_DropDownFilterText

I do steps but when i run .asmx it has error that i said in my main question.
additionally when i want to open my webservice it has some erorr:

configuring website with asp.net2 failed.you must manually configured this site for asp.net 2 in order for the site to run correctly.

if WSDL has some problem how can i solve it?

Abhishek Sur6-Sep-09 22:00

Re: webservice [modified]

6-Sep-09 22:00

Is it possible to show us what you did to build web service. I think it shouldnt have any problems. Frown | :(

Abhishek Sur

My Latest Articles
Create CLR objects in SQL Server 2005
C# Uncommon Keywords
Read/Write Excel using OleDB
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farokhian6-Sep-09 23:54

farokhian

6-Sep-09 23:54

I send my webservice and my website that use webservice to your email.
I run conver.asmx (it is class in my project)
I thank you that you answer me.

modified on Monday, September 7, 2009 6:14 AM

Christian Graus6-Sep-09 12:19

UserControl and javascript.

6-Sep-09 12:19

You realise that you don't 'run' webservices' as such, although it SHOULD show you an interface if you browse to it. What if you view the source ?

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Matt Cavanagh6-Sep-09 8:05

6-Sep-09 8:05

Im using AJAX to load the HTML from usercontrols through a webservice.
My webmethod returns a string(which is the resulting html from the ascx) and then in javascript i add it to the page. To test, in my usercontrol i have this:
<pre>
<script type="text/javascript">

      function meep() {
            alert("heeeeelllooooha");
      }

</script>
<a href="#" onclick="meep();">Click here</a>
<pre>

Which in my mind should add a javascript function to the page. But when i click the "ClickHere" link it says meep is undefined(i know this thanks to the firefox webdeveloper toolbar)

Thanks Smile | :)

Strive to be humble enough to take advice, and confident enough to do something about it.

Abhishek Sur6-Sep-09 10:55

6-Sep-09 10:55

If you read about web tech you might come across, anything that implements IHttpHandler, can only handle Requests from the client. ASCX or rather UserControl is not inherited from IHttpHandler, so it cant be called directly from the client. You need to add the user control inside a page (which implements IHttpHandler) and then call the page from the client.

I guess you are using XMLHttpRequest object to make request. When you get the response, you need to place the responseText a div or any container of your wish.
Generally if you set innerHTML you are actually stripping out the <script> elements from the request. So you need to eval Scripts before you place the innerHTML. Rather than doing so, I would recommend to place all the javascript blocks into a javascript file and then from html you call the function.

I think this way your problem will be solved. If you find any more problem, just paste your client side code here to help you. Rose | [Rose]

Abhishek Sur

My Latest Articles
Create CLR objects in SQL Server 2005
C# Uncommon Keywords
Read/Write Excel using OleDB
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Matt Cavanagh6-Sep-09 11:24

6-Sep-09 11:24

Sounds perfectly reasonable. I would prefer to eval them to keep everything in one file(without having to call external js). So how would i go about that? Im using normal asp ajax webmethods with a webservice. And yes im using innerHTML. So what do i need to do just before setting the innerHTML?

Also, if I did decide to have external js files then how would i include those? Because surely when i sent through the <script> tag to include it it would be stripped out too when setting innerHTML?

Thanks alot

Strive to be humble enough to take advice, and confident enough to do something about it.

Abhishek Sur6-Sep-09 12:12

6-Sep-09 12:12

Well,

Just use this :

function sethtml(div,content) 
{ 
    var search = content; 
    var script; 
          
    while( script = search.match(/(<script[^>]+javascript[^>]+>\s*(<!--)?)/i)) 
    { 
      search = search.substr(search.indexOf(RegExp.$1) + RegExp.$1.length); 
       
      if (!(endscript = search.match(/((-->)?\s*<\/script>)/))) break; 
       
      block = search.substr(0, search.indexOf(RegExp.$1)); 
      search = search.substring(block.length + RegExp.$1.length); 
       
      var oScript = document.createElement('script'); 
      oScript.text = block; 
      document.appendChild(oScript); 
    } 
    var container = document.getElementById(div);
    if(!!container)
    {
       while(container.firstChild)
         container.removeChild(container.firstChild);
      container.innerHTML = content; 
    }
}

Now once you receive the response, instead of directly setting the content to the innerHTML, pass it to this function:

say the id of the div is dvResponse, then

setHtml('dvResponse', ajaxResponse);
The function will find each script blocks using RegEx pattern and add them at the end of the page. If you want the script in head sectionn, just replace the line
document.appendChild(oScript); with document.getElementsByTagName("head").item(0).appendChild(oScript);

roguemat wrote:
Also, if I did decide to have external js files then how would i include those? Because surely when i sent through the tag to include it it would be stripped out too when setting innerHTML?
</blockquote>

Yes.. you are right.. In that case you need to add the scripts on the original page where the container div is.

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Matt Cavanagh6-Sep-09 19:53

6-Sep-09 19:53

brilliant, works perfectly Smile | :)

One more question if you dont mind. At the moment if i add two of the same control they obviously have the same javascript functions. So when i do a function it will run the wrong one etc. Is it possible to encapsulate these controls like [if they were c#]they were two seperate classes with private methods, but still with access to my main classes(the javascript variables and functions on the asp.page that werent added by any contols) pubic methods.

If not, how would i do it? I messed around with dynamic functions and incrementing an int for each function name but thats plain messy.

Thanks

Strive to be humble enough to take advice, and confident enough to do something about it.

Abhishek Sur6-Sep-09 22:14

6-Sep-09 22:14

Thanks ..
Well.. If you are unsure that the same script may come twice to the page, I think you have to name each script block using ID.

use <script id="srpt">
and before doing appendChild(oScript) just do a call

var scrElem = document.getElementById("yourId");
if(!!scrElem)
document.appendChild(oScript);

Hope you can do it now. Just need to alter the script a bit.

Thanks again for appreciating.. Dont forget to click "Good Answer" if you like my solution. Cool | :cool:

Abhishek Sur

My Latest Articles
Create CLR objects in SQL Server 2005
C# Uncommon Keywords
Read/Write Excel using OleDB
Don't forget to click "Good Answer" if you like to.

Matt Cavanagh6-Sep-09 23:09

6-Sep-09 23:09

Ok I know what you mean but I didnt explain properly.
Lets say i load the same control twice and each one outputs the same javascript:

function doSomething()
{
//something
}

function doSomething()
{
//something
}

And then in each control if i have <a onclick="doSomething">click</a> it wont neceserily run the function that was generated by it.
This is why i was asking about encapsulation, so if each control could only have access to its doSomething function it would always call the right one.

I dont really want to got the route of dynamically making doSomething1(), doSomething2() etc for each control thats added. That seems sily.
Thumbs Up | :thumbsup:

Strive to be humble enough to take advice, and confident enough to do something about it.

Abhishek Sur8-Sep-09 13:44