iframe and codebind - Web Development Discussion Boards

8-Jun-02 23:12

What limitations exist for an ASP.NET webapplication as ragards a straight C# application.

I am trying to learn C# but I also need to know more about ASP.NET and since I can do the server side stuff in C# I thought I could combine the two tasks.

however I suspect that the c# in webapplications would be limited in someway - maybe not - but I'd like to know before I start racking my head over something I can't do

Shaun

Limitations

8-Jun-02 23:12

Help Deploying ASP.Net app

7-Jun-02 19:06

I am trying to deploy an ASP.Net project from my 2000 Pro box to my XP Pro box using the copy feature of VS.Net. I have successfully moved it to a 2000 Advanced server box. The problem is that when I try and move it to the XP box I am getting permission errors.

Now I have tried opening up the anonoymous access, logging on as Admin, etc and every conceivable thing I can think of with no luck. .Net simply refuses to allow me to copy the ASP.net app to this IIS server.

I have also verified that the 2000 Advanced server has the identical IIS settings as the XP box except for those settings that Advanced server provides which are not on the XP Pro version of IIS such as Operators.

Any thoughts as to why this is causing me such grief and how to fix it would be greatly appreciated

Re: Help Deploying ASP.Net app

SimonS11-Jun-02 5:46

SimonS

11-Jun-02 5:46

Have you tried making a 1 page ASP.NET project and seeing if you still get the same errors?

Cheers,
Simon

"Every good work of software starts by scratching a developer's personal itch.", Eric S. Raymond

Re: Help Deploying ASP.Net app

11-Jun-02 7:15

Actually the test case I am trying is a single ASPX file. It works if I pull the data to the server as opposed to puching it from my development box. Unfortunately I wouln't always have that luxury if I need to push to a third party host.

Enumerate bound columns in a datagrid?

Todd Smith7-Jun-02 12:38

Todd Smith

7-Jun-02 12:38

I have a datagrid with a lot of columns that I need to creat a sql update statement from. Most of the examples do something like the following:

TextBox hours = (TextBox)objArgs.Item.FindControl("hours");
TextBox days = (TextBox)objArgs.Item.FindControl("days");
TextBox userid = (TextBox)objArgs.Item.FindControl("userid");
.... repeat for all controls in the grid

string sql = "update userinfo set hours = " + hours.Text + ", days = " + days.Text + " where userid = " + userid.Text;

As you can imagine this take a lot of code for a table with a lot of columns.

Is there a way to enumerate the bound columns of a datagrid? Something like:

string sql = "update userinfo set ";

foreach (BoundColumn column in myDataGrid)
{
    sql += column.Name + " = " + column.Text ", ";
}

would be really nice.

Todd Smith

Re: Enumerate bound columns in a datagrid?

Not Active8-Jun-02 13:55

Not Active

8-Jun-02 13:55

I believe you need to do it this way.

private void OnUpdate(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
  TextBox text = (TextBox)e.Item.FindControl("Edit1");
  Label label = (Label)e.Item.FindControl("Label1");
}

iframe and codebind

Peter Marino7-Jun-02 9:31

Peter Marino

7-Jun-02 9:31

Hi all,

I have one iframe element on my aspx page. I want to pass the content of the
iframe back to the
codebehind file for saving to the database. Is there any way to grab this
information and post back?

Peter Marino
IO Interactive

is there an equivalent to C++'s #define with ASP?

LukeV7-Jun-02 4:34

LukeV

7-Jun-02 4:34

Like subject says... I have problems when including a file more than once,
so having something like a #define would avoid including a file twice.

I'd also like to use that for creating a language file, so to translate my
website, I'd only have to modify that file...

Thanks!

I just found out that Const would do that for me, but now I need an equivalent to #ifdef, #else and #endif...

---------------
http://www.edovia.com

Printing from a webpage

Gavin_Mannion7-Jun-02 0:47

Gavin_Mannion

7-Jun-02 0:47

Hi All,

I am using ASP.NET and C#

I would presume this is an easy question but I can't seem to find any information about it.

I would like to add a button to my webpage that when clicked acts just like the print option of Internet Explorer. ie. Brings up a box to ask you what printer you want to print.

I'm sure there must be a straight function that I can call, something like Document.Print?

Thanks,
Gavin

Re: Printing from a webpage

Remco V7-Jun-02 2:07

Remco V

7-Jun-02 2:07

code example:

<SCRIPT Language="Javascript">

/*
This script is written by Eric (Webcrawl@usa.net)
For full source code, installation instructions,
100's more DHTML scripts, and Terms Of
Use, visit dynamicdrive.com
*/

function printit(){  
if (window.print) {
    window.print() ;  
} else {
    var WebBrowser = '<OBJECT ID="WebBrowser1" WIDTH=0 HEIGHT=0 CLASSID="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2"></OBJECT>';
document.body.insertAdjacentHTML('beforeEnd', WebBrowser);
    WebBrowser1.ExecWB(6, 2);//Use a 1 vs. a 2 for a prompting dialog box    WebBrowser1.outerHTML = "";  
}
}
</script>

<SCRIPT Language="Javascript">  
var NS = (navigator.appName == "Netscape");
var VERSION = parseInt(navigator.appVersion);
if (VERSION > 3) {
    document.write('<form><input type=button value="Print this Page" name="Print" onClick="printit()"></form>');        
}
</script>

source: http://www.dynamicdrive.com/dynamicindex9/other1.htm

Re: Printing from a webpage

Gavin_Mannion7-Jun-02 3:52

Gavin_Mannion

7-Jun-02 3:52

Thanks a million,

Works like a treat

Connection Pooling

Mr. Bill6-Jun-02 13:30

Mr. Bill

6-Jun-02 13:30

I was wondering if anyone knew if connection pooling will work with an as/400 backend?

Thanks

Best ASP.NET sites?

Todd Smith6-Jun-02 10:56

Todd Smith

6-Jun-02 10:56

What are your favorite ASP.NET sites for learning more complex stuff?

Todd Smith

Re: Best ASP.NET sites?

Rama Krishna Vavilala8-Jun-02 17:04

Rama Krishna Vavilala

8-Jun-02 17:04

Start with www.asp.net? It is a Microsoft maintained site

Thirty For Free Web Hosting ???

Romeo6-Jun-02 6:20

Romeo

6-Jun-02 6:20

There are many web hosting provider, but they don't support ASP ?.If you know any please tell me.

Thank you very much.

Re: Thirty For Free Web Hosting ???

KoalaCowboy6-Jun-02 7:02

KoalaCowboy

6-Jun-02 7:02

My "preferred" Hosting provider for ASP.NET is WebStrikeSolution.com! They offer a nice package for ASP.NET and the price is hard to beat! Check it out: http://www.webstrikesolutions.com/windows.html

I had been using the Web Hosting provided by my ISP (included with the service, however, the ISP Tech's just weren't up-to-speed with ASP.NET and I don't want to have to teach them as well as myself. So, I chose to switch and have been happy so far!

Cool | :cool:

Regards,

KoalaCowboy
Knowledge Monster Extraordinaire

Re: Thirty For Free Web Hosting ???

Not Active7-Jun-02 9:38

Not Active

7-Jun-02 9:38

I've been using Site Plot

SQL Server API problem...

6-Jun-02 4:24

Hello;

I have trouble with SQL Server 7.0 API. I'm getting following error at link phase. Source code at below; (VC++ 6)

// SmcDatabase.cpp: implementation of the CSmcDatabase class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "smc_client.h"
#include "SmcDatabase.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

#define MAXBUFLEN 255

#include <stdio.h>
#include <string.h>
#include <windows.h>
#include <sql.h>
#include <sqlext.h>
#include <odbcss.h>
#include <afxpriv.h>
#include <afxdisp.h>

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CSmcDatabase::CSmcDatabase()
{

}

CSmcDatabase::~CSmcDatabase()
{

}

HRESULT CSmcDatabase::Connect(char* server, char* uid, char* pwd)
{
SQLHENV henv = SQL_NULL_HENV;
SQLHDBC hdbc1 = SQL_NULL_HDBC;
RETCODE retcode = 0;

// This format of the SAVEFILE keyword saves a successful
// connection as the file Myfiledsn.dsn in the ODBC default
// directory for file DSNs.
SQLCHAR szConnStrIn[MAXBUFLEN] =
"SAVEFILE=MyFileDSN;DRIVER={SQL Server};SERVER=MySQL;"
"NETWORK=dbmssocn;UID=sa;PWD=MyPassWord;";

SQLCHAR szConnStrOut[MAXBUFLEN];
SQLSMALLINT cbConnStrOut = 0;

// Allocate the ODBC Environment and save handle.
retcode = SQLAllocHandle (SQL_HANDLE_ENV, NULL, &henv);

// Let ODBC know this is an ODBC 3.0 application.
retcode = SQLSetEnvAttr(henv, SQL_ATTR_ODBC_VERSION,
(SQLPOINTER) SQL_OV_ODBC3, SQL_IS_INTEGER);

// Allocate an ODBC connection handle and connect.
retcode = SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc1);
retcode = SQLDriverConnect(hdbc1, // Connection handle
NULL, // Window handle
szConnStrIn, // Input connect string
SQL_NTS, // Null-terminated string
szConnStrOut, // Addr of output buffer
MAXBUFLEN, // Size of output buffer
&cbConnStrOut, // Address of output length
SQL_DRIVER_NOPROMPT);

return(retcode);
}

Error message;
--------------------Configuration: smc_client - Win32 Debug--------------------
Linking...
SmcDatabase.obj : error LNK2001: unresolved external symbol _SQLDriverConnect@32
SmcDatabase.obj : error LNK2001: unresolved external symbol _SQLSetEnvAttr@16
SmcDatabase.obj : error LNK2001: unresolved external symbol _SQLAllocHandle@12
Debug/smc_client.exe : fatal error LNK1120: 3 unresolved externals
Error executing link.exe.

smc_client.exe - 4 error(s), 0 warning(s)

Thank you for helps...

Re: SQL Server API problem...

Remco V6-Jun-02 5:53

Remco V

6-Jun-02 5:53

Sounds you're not linking odbc32.lib.

Don't know right now how to add it exactly (in .NET -> project properties, Linker, Input, Additional Dependencies)

Succes!

Re: SQL Server API problem...

Orkun GEDiK6-Jun-02 8:55

Orkun GEDiK

6-Jun-02 8:55

Thank you.

Ahmet Orkun GEDiK

Hiding user controls vs dynamic creation

Senkwe Chanda6-Jun-02 4:04

Senkwe Chanda

6-Jun-02 4:04

Hi all, I need a second opinion on this. Recently I've been struggling with trying to load user controls dynamically. Simple right. Well not if those user controls also host other user controls that are loaded dynamically. It's technically possible but all solutions I've seen so far haven't worked and they have been hacks. The main problem with loading user controls dynamically is keeping track of view state and wiring up events.

Now, one workaround I thought of was loading all the user controls at compile time (so that they are actually part of the page) and hiding/showing the desired controls depending on user input. I had thought that the resultant html source produced would end up becoming bloated with hidden controls. A quick test however, showed that the source ends up excluding all invisible controls, ie they are simply not rendered. So the resultant page is NOT bloated.

To prevent too much work being done on the server however, I thought you could test to see if the control was visible in which case you could safely call your data binding code for example, and if not, you simply do nothing when the control loads.

Well, what do you guys think? Is this how you do it as well? I'd like to hear pros and cons.

Regards

Senkwe

Just another wannabe code junky

Stupid WebForm Designer Behavior

Jamie Nordmeyer5-Jun-02 12:16

Jamie Nordmeyer

5-Jun-02 12:16

Why in the HELL does WebForm designer restructure my nicely formated code in to a bunch of table tags?!?!

Original Code:

<DIV style="WIDTH: 873px; POSITION: relative; HEIGHT: 320px" ms_positioning="GridLayout">
	<asp:button id="cmdUpdate" style="Z-INDEX: 101; LEFT: 584px; POSITION: absolute; TOP: 264px" tabIndex="10" runat="server" Width="80px" Height="24px" Text="Update"></asp:button>
	<asp:label id="Label8" style="Z-INDEX: 102; LEFT: 400px; POSITION: absolute; TOP: 16px" runat="server" Width="136px">Welcome Message:</asp:label>
etc...

After changing just ONE item in the designer:

<DIV ms_positioning="GridLayout">
	<TABLE height="320" cellSpacing="0" cellPadding="0" width="873" border="0" ms_2d_layout="TRUE">
		<TR vAlign="top">
			<TD width="0" height="1"></TD>
			<TD width="8"></TD>
			<TD width="8"></TD>
			<TD width="168"></TD>
			<TD width="88"></TD>
			<TD width="16"></TD>
			<TD width="112"></TD>
			<TD width="184"></TD>
			<TD width="88"></TD>
			<TD width="201"></TD>
		</TR>
                <TR vAlign="top">
			<TD width="0" height="15"></TD>
			<TD colSpan="3" rowSpan="2">
				<input id="hdnID" type="hidden" runat="server" NAME="hdnID"></TD>
			<TD colSpan="8"></TD>
		</TR>
		<TR vAlign="top">
			<TD width="0" height="24"></TD>
			<TD rowSpan="10"></TD>
			<TD colSpan="2">
				<asp:label id="Label1" runat="server" Width="152px" Height="16px">Client Name:</asp:label></TD>
etc...

This makes no sense to me, and is EXTREMELY frustrating, because when I go back to the designer, everything is completely misplaced.

Thanks in advance for any ideas.

Jamie Nordmeyer
Portland, Oregon, USA

Re: Stupid WebForm Designer Behavior

Senkwe Chanda6-Jun-02 4:10

Senkwe Chanda

6-Jun-02 4:10

Hmmm, I've never experienced that.But I always use a simple HtmlTable for layout. If push comes to shove, you can try that instead.

Senkwe

Just another wannabe code junky

Re: Stupid WebForm Designer Behavior

Jamie Nordmeyer6-Jun-02 5:47

Jamie Nordmeyer

6-Jun-02 5:47

Thanks, Senkwe. Actually, I figured it out last night. Turns out that I'd somehow set my WebForm to target Internet Explorer 3.0 or below, and since those browsers don't support controls being layed on top of one another, it wraps them in table tags. None of my controls were overlapping, so I guess the designer was just playing it safe.

Jamie Nordmeyer
Portland, Oregon, USA

Last Visit: 31-Dec-99 18:00 Last Update: 30-Sep-24 18:15

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