ASP.NET

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ViewState Problem RoyRose784-Sep-07 6:41 RoyRose78 4-Sep-07 6:41  Hey all, I'm having this weird problem with an aspx page. In this page I have 2 dropDownList controls: _TableDropDown - has items that I entered at design time. the items are: Cities, Titles etc.. _RowsDropDown - filled after _TableDropDown is autoPostBack to server from DB(when selecting Cities of _TableDropDown the _RowsDropDown is filled with YNC, Paris etc.. and when selecting Titles of _TableDropDown the _RowsDropDown is filled with Manager, Developer etc...) everything is ok until I press the back button. this is what I did from IE: 1. got the page the first time - the _TableDropDown with Cities and _RowsDropDown with the data from DB. 2. changed the _TableDropDown value to Titles - postback occured and the page got back to me with the right data. 3. press back button - now the _TableDropDown is set with Titles value BUT _RowsDropDown values filled with cities data.. I know that when pressing back button of IE there is NO postback to the server so I guessed it's something with the viewState... Is someone familier with the problem? What should I do to get over this? Thank you very much, RoyRose Re: ViewState Problem Christian Graus4-Sep-07 6:56 Christian Graus 4-Sep-07 6:56  If there is no postback, then viewstate cannot have anything to do with it Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum ) Re: ViewState Problem RoyRose784-Sep-07 8:16 RoyRose78 4-Sep-07 8:16  There is no postback & it's find with me cause I don't need anything from the server. All I want is that when I press IE's back button it'll go to the state it was and not to an imposible state! Re: ViewState Problem Christian Graus4-Sep-07 8:29 Christian Graus 4-Sep-07 8:29  The way to do this, is to store the value in the URL, and to do a redirect to that URL, on postback. Otherwise, the step where you changed the value of one, but the other was not changed, is a page in IE's history. That's what you're stepping back to. Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum ) e-commerce functionality ASP.NET shopping carts SAS254-Sep-07 6:19 SAS25 4-Sep-07 6:19  Hi all, I followed up a response to another discussion with regards to e-commerce shopping cart solutions. My question is regards to using shopping carts in particular the downloading of software or files once payment is recieved notably though an e-mail. This is common with Software companies who allow the purchase of e-products where no shipping occurs. The solution I require is as follows. 1/ My client requires a web application which allows customers to select from 10 excel sheets to add to basket 2/ Basket functionality should allow for adding/deleting products i.e. these excel sheets 3/ Checkout option which redirects to Secure area of site through the use of SSL Cert will capture payment details which is authorised through payment merchant/gateway 4/ Once payment is authorised redirect to another page for "success order, you will be sent an e-mail with download instructions, blah blah blah" 5/ Online customer receives e-mail with links to the files to download. They are given two chances to download the file then it becomes locked! 6/ E-mail should also generate invoice to customer in image/pdf format which cc to administrator of site also. 7/ Site should also have a history of orders which can be exported for financial system Question 1 - Does anyone know of an ASP.NET e-commerce solution that can produce these results Question 2 - Any code snippets or complete solutions that anyone has come across on any websites Any advice would be greatly appreciated. All the best, SAS 25 Re: e-commerce functionality ASP.NET shopping carts Lucky Sheikh5-Sep-07 0:34 Lucky Sheikh 5-Sep-07 0:34  hey guy don,t waste ur time this statement company have many employees n working at different platform if u want to do first create a website then link the email to server site u know when u register ur web email is free it goes automatically to the server side. database never respond automatically it help form server administrative done this type of work ok hope u understand and tell which type of web u want to create i help u if u r interest i m a software engg work as a post of project developer in .net all components ok byeeeeeee hope u understand lucky SSO and Debugging on XP Pro - domain issues davidhart4-Sep-07 6:06 davidhart 4-Sep-07 6:06  I develop on XP Pro. I am setting up SSO (single site login). I want to debug my website and authenticate through the main server running on Win2k3. The main server has a domain full domain (www.sample.com). I can authentiate and redirect to my XP Pro site. However, when I check Request.IsAuthenticated it is false. I believe this is because my host header is localhost on my XP Pro box. I have tried setting my host file to be the same domain as the main server. The host file change has no effect. I have also tried setting the host header in IIS. The host header change causes an error "unable to start debugging on web server. the web server could not find the requested resource". I was wondering if someone has figured this out. If so, please let me know. Thanks. how can i show a pdf file in asp.net ? B.A4-Sep-07 5:52 B.A 4-Sep-07 5:52  hi i store some pdf file in a folder in my ASP.NET solution. and now want to insert a link to a page that user click it , show pdf file how can implement it ? tanks . Re: how can i show a pdf file in asp.net ? Christian Graus4-Sep-07 6:01 Christian Graus 4-Sep-07 6:01  Just link to the PDF, IE will display it. Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum ) Re: how can i show a pdf file in asp.net ? B.A4-Sep-07 6:17 B.A 4-Sep-07 6:17  tanks Christian Graus it is very simple than i think. but now have a question : i have installed acrobat reader in my computer and now that view a pdf in a browser show correctly. how about in a machine that has not acrobat reader ? is it show correctly ? Re: how can i show a pdf file in asp.net ? Christian Graus4-Sep-07 6:33 Christian Graus 4-Sep-07 6:33  Of course not. It will probably prompt the user to download the reader. Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum ) Re: how can i show a pdf file in asp.net ? B.A4-Sep-07 20:31 B.A 4-Sep-07 20:31  tanks so much Re: how can i show a pdf file in asp.net ? Lucky Sheikh5-Sep-07 1:02 Lucky Sheikh 5-Sep-07 1:02  hey don,t make a file in pdf because when user click on this file adobe acrobat must be install on their computer so make a file in ms-office it can be help to all users ok byeeeeee if any doubt mail me lucky CSS sheets in folder TAK784-Sep-07 5:21 TAK78 4-Sep-07 5:21  I wrote a code to check for Browser version and to set the Stylesheet accordingly. Now if I leave the Stylesheets at the root the code works perfect and selects the right style, but if I create a folder like "CSS" and put the styles in there and redirect the link to this folder than it want recognize the styles anymore. Can anyone tell me why? Here is my code: Public Function getStyle() As String Dim browser As Object = Request.Browser.Browser.ToLower.ToString() Dim bc As HttpBrowserCapabilities = Request.Browser Dim str As String = "" Dim Style As String = "" 'check browser and set appropriate stylesheet If browser = "ie" Then 'check for version of IE (6 or other) If bc.MajorVersion = "6" Then Response.Write("<link href='StyleSheetIE6.css' rel='stylesheet' type='text/css' />") 'Response.Write("<link href='CSS/StyleSheetIE6.css' rel='stylesheet' type='text/css' />") 'this line want work Else Response.Write("<link href='StyleSheet.css' rel='stylesheet' type='text/css' />") 'Response.Write("<link href='CSS/StyleSheet.css' rel='stylesheet' type='text/css' />") 'this line want work End If Else Response.Write("<link href='StyleSheetFOX.css' rel='stylesheet' type='text/css' />") 'Response.Write("<link href='CSS/StyleSheetFOX.css' rel='stylesheet' type='text/css' />") 'this line want work End If Return Style End Function code in Html header: <head runat="server"> <title>Untitled Page</title> <% getStyle() %> </head> I appreciate any suggestion. Thanks Re: CSS sheets in folder ToddHileHoffer4-Sep-07 8:08 ToddHileHoffer 4-Sep-07 8:08  Did you view the source on your rendered page to see where the link was pointing? If you are using a master page, try "~/CSS/StyleSheetFOX.css" I didn't get any requirements for the signature Executing stored procedure peacefulmember4-Sep-07 5:15 peacefulmember 4-Sep-07 5:15  Hi all, Could anybody please help me with the following lines of code to execute stored procedure that takes one parameter and returns a number...I tried all oraclecommnad class methods to execute this SP, I get error all the time. Dim cn As New System.Data.OracleClient.OracleConnection(connStr) Dim cmd As New OracleCommand cn.Open() cmd.Connection = cn cmd.CommandText = "{? = call Employees.EmpDept('" & empID & "')}" cmd.CommandType = Data.CommandType.StoredProcedure cmd.Parameters.Add("retVal", OracleType.Number) cmd.Parameters("retVal").Direction = Data.ParameterDirection.ReturnValue cmd.ExecuteNonQuery() --- this statement creates following error PLS-00103: Encountered the symbol "{" when expecting one of the following: ( - + case mod new not null <an identifier=""> avg count current exists max min prior sql stddev sum variance execute forall merge time timestamp interval date pipe <an alternatively-quoted="" string="" literal="" with="" character="" set="" specification=""> Re: Executing stored procedure Christian Graus4-Sep-07 5:26 Christian Graus 4-Sep-07 5:26  replace your command text with the name of the proc only ( EmpDept, from the look of it ) and add your ingoing parameter to the parameters collection. Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum ) Re: Executing stored procedure peacefulmember4-Sep-07 5:31 peacefulmember 4-Sep-07 5:31  Thanks for quick response. I will give it a try...but what is wrong with specifying input variable like this. I used to do the same in asp. Re: Executing stored procedure Christian Graus4-Sep-07 6:03 Christian Graus 4-Sep-07 6:03  This is not asp, this is a real framework. Your asp code just executed SQL, these classes are taking the proc name and attempting to run a proc named exactly what you typed in, with the parameters you provided. This allows the framework to do things like sanitise the input to protect from injection attacks. Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum ) Re: Executing stored procedure peacefulmember4-Sep-07 6:49 peacefulmember 4-Sep-07 6:49  Great!..Thanks for the explaining it in deatil. Now I understand. Well, I tried the way you have suggested. I still get error . I have defined parameters like cmd.CommandText = "Employees.EmpDept" cmd.CommandType = Data.CommandType.StoredProcedure cmd.Parameters.Add("userid", OracleType.VarChar) cmd.Parameters("userID").Direction = Data.ParameterDirection.Input cmd.Parameters("userID").Value = sUserID cmd.Parameters.Add("retVal", OracleType.Number) cmd.Parameters("retVal").Direction = Data.ParameterDirection.ReturnValue Now I get following error ORA-06550: line 1, column 17: PLS-00306: wrong number or types of arguments in call to 'EMPDEPT' ORA-06550: line 1, column 7: PL/SQL: Statement ignored I checked the definition of procedure, its like CREATE OR REPLACE PACKAGE BODY EMPLOYEE IS FUNCTION EMPDEPT(sID IN VARCHAR2) RETURN NUMBER IS vDept NUMBER; BEGIN ...select statement here ... END EMPDEPT; END; / Now, what I am missing here? Re: Executing stored procedure Christian Graus4-Sep-07 7:07 Christian Graus 4-Sep-07 7:07  peacefulmember wrote: cmd.CommandText = "Employees.EmpDept" Again, don't scope it, put EmpDept. It's not a proc, it's a function ? Not sure if the syntax is the same then.... It does look like you're claiming your variable called userID, when it's in fact called sID. Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum ) Re: Executing stored procedure peacefulmember4-Sep-07 7:28 peacefulmember 4-Sep-07 7:28  Yes, you answered it right. I changed the variable from userID to sID, w/o changing the scope or syntax, it worked. Thanks a lot for your help. Validating with out Validators Muntyness4-Sep-07 5:09 Muntyness 4-Sep-07 5:09  Hi all, I have a number of text boxes that the user can fill in. I want to make sure that the user can only use the following characters: . + - _ ( ) A-Z a-z 0-9 Unfortunately asp:validators are not working. (And I don't know why, as they used to work before importing the project from vs2003 to vs2005. Plus I don't know how to set this in the validators anyway...) I'm guessing that regular expressions are the way to go in this case (using Regex.Match(inputString, Pattern), but I don't know how to make a working regular expression. (The patterns I've been trying have ended up crashing when I include a character such a # or ' at the end of the input string.) So, any suggestions? - Munty Re: Validating with out Validators Christian Graus4-Sep-07 5:19 Christian Graus 4-Sep-07 5:19  Muntyness wrote: Plus I don't know how to set this in the validators anyway...) How can you know they are not working, if you don't know how to use them ? A validator validates AFTER text is entered, so you could use a regex validator, but your box will still accept other characters. www.expresso.com[^], or search this site for Expresso, a tool for building regex. But, if you want to not allow those keypresses at all, you need to write javascript code that does that directly. Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum ) Re: Validating with out Validators Muntyness4-Sep-07 5:53 Muntyness 4-Sep-07 5:53  Because the validators I do know how to use are no longer working. So far I've tries two different types of validators that used to work under 2003. This bit I don't know how to do via asp validators is limiting the accepted character sets. Thanks for the Expresso comment. I'll try that out. (The link you point to leads to a parked domain, but I was able to find it here) - Munty

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