Web Forms :: Using A Session Variable As Web Form Validator Control
Apr 13, 2010
I'm creating a session variable in my .vb file and I'm able to display it in my .aspx but I can't seem to use it as a control in my asp:CompareValidator. The only way I can think to reference it on the .aspx page is with <%=Session("MyVariable") %> but
such constructs are not allowed in a validator with runat="server". But it seems like the validator must have that attribute and value.
Really what I'm trying to do is validate a user-entered number in a textbox against the one populated in that same textbox from the database. If the user replaces the textbox value with a smaller one I want to show an error message and prevent submit.
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Similar Messages:
Mar 3, 2011
I am trying to use this query in a form view "Select * from actions where emp_id = " & session("emp_id") for the select command. This is the format I am used to in classic asp. How can I acheive the same results in asp.net.
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Mar 3, 2011
I am trying to use this query in a form view "Select * from actions where emp_id = " & session("emp_id") for the select command. This is the format I am used to in classic asp. How can I acheive the same results in asp.net.
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Nov 22, 2010
Currently in an .aspx file, I am storing a value (filename that was created in that session) in an hidden text box. When the user clicks on the "Print" labeled Hyperlink control, it opens the file that was stored in the hidden text box control. But when the user goes to different screen (in the same session), I loose the filename value that is stored in the hidden text box control. So I would like to store the filename variable in a session variable. So that if the user leaves this .aspx file and comes back to this .aspx file I can load the value into the hidden text box from the session variable.
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Mar 22, 2010
I have an ASP control custom built and I need to pass a value taken from a session variable to it like so:
<custom:control id='mycontrol' value="+Session['myControlValue']+">
...
</custom:control>
the above code obviously doesn't work, I need a way to insert the Session value in the control in this way somehow,
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Apr 15, 2010
I have a wizard control. When someone clicks a button within the wizard control I automatically advance to the next step (rather than forcing them to click next). However, this seems to cause the session state variable not to be saved. I've done some research and noticed that Response.Redirect does hard redirects that truncate page execution - and that you can add a false parameter to prevent this...what I'm wondering is if the wizard control is doing the same thing and if so, if I can add a parameter to this as well?
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Jan 27, 2011
the following web.config file is placed in a specific sub-folder on a website. It will allow the user John.Doe to access the pages inside the folder but will deny anonymous users
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.web> [code]...
Is it possible to replace users in the following web.config file with certain session variable for example getting the day(sunday, monday, etc) from date and storing it in session("DayVar")
then the code should be something like this for the subfolder monday
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.web> [code]...
is this doable ?
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Mar 4, 2010
I have a custom control which inherit from the Table class and in the constructor, it takes a an integer as an argument. There is no empty constructor.
Is there a way for the user to set that variable in the properties window after they drag the control onto a form.
I know some .NET controls, you can set the source for the parameter to different things like another control's property, QueryString using just the properties window.
Right now, I have to create the control dynamically. I read the query string and then created the object.
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May 18, 2010
I want to pass the string input from a text boxe in Form1 to appear in a specfic textbox field in form2.
I'm trying to do it via HyperLink in the source form:
NavigateUrl="~/PassVarTest.aspx?txtFirstName"
and this code in the destination form:
[Code]....
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Dec 9, 2010
can we grab a global variable or Session or View State variable in the javascript or using jquery?
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May 17, 2010
I have a web application which uses a session variable to store the logged in userid. If no user is logged in, of course this variable will be empty and the contents displayed on my website are meant for guests. If there is a user logged in, the user specific controls/access/links will then be a displayed.
I am now having issues with my hosting where on shared application pool, the worker recycle is triggered every 90 minutes, this will clear sessions causing all my users to be logged out. I opted for a dedicated application pool, which got worse because I am only allocated 50MB memory limit and if this is reached, the worker recycle is triggered and I lose my sessions again. I have tried as much as possible optimization techniques, e.g. dispose where possible, close connections, disable viewstate for static controls etc but my memory per instance keeps building up from page to page without any signs of improvement. I don't use loops nor store huge objects like bitmaps etc but my sessions are now gone even faster than 90 minutes in shared application pool before.
I have considered using SQL Session State but there isn't a simple guide on using this with MySQL. I am getting desperate and considering using a public variable, a string as a replacement to store logged in user id instead of in a session variable. I am pretty sure this will solve my issue with sessions being recycled but are there any negative consequences of doing this? One problem I can think of is if the user closes the browser, the system will never know that the user is now logged out and this public variable should be nothing. In this scenario, will the GC eventually clear this abandoned public variable.
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Dec 2, 2010
What would be the proper syntax in ASP.NEt 3.5 C# to assign a TextBox value to a temporary or session variable to be manipulated (added, subtracted, multiplied, divided) at different points in the application? I want to add a decimal number to this variable in almost every instance as well.
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May 25, 2010
I have the dataset. in this i am having total 20 tables with huge amount of data..I want use this data over all the page..so where i can keep this data..
before i used viewstate but the viewstate data is render to page every postback ..so this time the page size is increasing(interanlly viewstate is rendered to page)..so performence wise it was very slow..
Now i change my logic insted of viewstate to i used Globel Dataset on Page Level.. now the performence wise better than viewstate..
i used Like shared dsControls as Dataset at top of the page..so every time i use this dataset..
my quesation is session is better or Globel variable is better way use in my situavation..
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Sep 14, 2010
I added the following code to global.asax to load up several session variable when a session starts. I'm assuming that when a page goes to use the variable that I should be
1) checking at the page level that the value is valid not 0 when its not expected to be 0, not a zero-length string when its expected to have a length
2) have code at the page level that sets the values if the values have not been set as when the Session timeout, ideally putting the code in a class derived from Page and then deriving all of my pages from the new class so that the code does not have to be repeated in every page
[Code]....
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Nov 11, 2010
I have some code in my page load event where I just want to fire once when the user opens the Browser. The only issue is if you open a new tab with the same website the session variable does not reset. Is there a way to reset the session variable when you open a new tab or do you have to take the whole web browser down for it to clear the session variable.
In Global Page:
[code]....
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Aug 5, 2010
I have been spending a better part of a week trying to track down why I am not able to clear all session variables in a web app (vs 2010, vb.net). What I have tracked it down to is that when I remove or abandon sessions that my html pages or codebehind access, it works, but for some reason in any of my class files where I use "Public Shared strConnection as String = HttpContext.Current.Session("strConnection").ToString" to access a session variable, it finds the old one and not the current one. I have to wait for it to time out, go in again, and it will find the new one.
I do not use Linq, and there is only one place in the whole web app that I place the connection string in a variable whcih is when a person logs in. It points them to the correct database. The sqlconnection is set for all of my listviews in Page_Init to make sure that they aren't using any session variable that they create on their own. Interestingly enough that if I use debug to go in each time, exit debug, enter debug again trying to access a different database, it works correct each time. I assume that debug is correctly killing the session variable for the classes for me.
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Jul 6, 2010
I have a form that contains several textboxes and each one paired with a required validator. Each box reads a value from a dataset, and on submit click, update the database with the new value. For some reason, one of the validator always returns the error message even if I enter a value in the textbox. My code is something like this.
[Code]....
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Jul 29, 2010
I have some cascading dropdownlists using the ajax toolkit I have a set up datatables in an xsd file. Then use these in a webservice to populate all the fields ... this all works great but now i need to pass an additional paramter to the first dropdownlist ( a date) but don't know how to do this? The method is below...
[Code]....
The other code is:
[Code]....
The first change would be to the tableadapter to add a param to the code i.e
AuditWebDS.TeamsDataTable teams = teamsAdapter.GetTeams(calldate);
but how do i get the calldate param to the webservice method... i tried a session variable but it comes up with session is null ? Is there another better way?
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Jun 15, 2010
I'm working on converting the TailspinSpyworks shopping cart Joe Stagner wrote in C# to VB using an evaluation version of VS 2010. I have the following public function:
Public Function GetShoppingCartId() As [String]
If Session(CartId) Is Nothing Then
Session(CartId) = If(System.Web.HttpContext.Current.Request.IsAuthenticated, User.Identity.Name, Guid.NewGuid().ToString())
End If
Return Session(CartId).ToString()
End Function
For Session in Session(CartId) I'm etting the following error: 'Session' is not declared. It may be inaccessible due to its protection level. For User in User.Identity.Name I'm getting the same error: 'User' is not declared. It may be inaccessible due to its protection level
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Jan 2, 2011
I'm trying to add a regular expression validator to verify the email text box that is within a Create User Wizard. The form that I'm working with is called Register.aspx, and is the form that is auto generated when you start a new web application found under the Account folder.
For some reason the code below is not firing off when I enter an email address that is incorrectly formatted. I have a feeling it's because I manually added the code within the form but that's just my guess.
[Code]....
[Code]....
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Apr 21, 2010
I am new to asp.net Can you please guide me what is session and session variables ? Please I don't need a comparision of asp session and asp.net session because I don't know anything about asp. I have saw many articles on types of session as well. But still I cant understand exectly what is session and what are session variables in asp.net ?
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May 27, 2010
I have new web form and I'm trying to send a value of label into the body area of an email when the form is submitted. my aspx and aspx.vb code is below -
The form only works when mail.body = "msg in quotes" but not when mail.body = TextBox1.text
.ASPX CODE:
<%@ Page Language="VB" Inherits="unclaimedTest" Src="unclaimedTest.aspx.vb" %>
<%@ import Namespace="System.IO" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-
[code]....
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Feb 22, 2012
Currently I have
string[] coln = m_data.Split(',');
But if I use session variable
Session["m_data'].Split(',');
How 2 use split function...
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Jan 26, 2011
I use a form variable to sore USER_ID and pass it in various sub and function at the same page.
Is form variable unique for each user? That is, if more than one user open this page at same time, will app cause problem?
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Jun 30, 2010
Initially before page load I declared list string variable
List<string> Emails = new List<string>();
Then I am adding value in for each as
Emails.Add(Convert.ToString(item["E-mail Address"]));
I checked value are ading properly. Then on btn_click event I am retrieving value as
foreach (string emailid in Emails
{
Response.Write(emailid .ToString());
}
Nothing is displaying, it seems on form submit list string is initializing.
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