I wondering how can I retrive data from a CheckBoxList in c#. and once I get the data I would like to store the data in a session so I can use the data from a session on a another page
View 3 Replies I am somewhat new at C# so forgive me if I have something listed wrong. This is what I got:
I am working on a school project designing a car dealership website. I have an inventory list that allows you to edit any car in the inventory. When you click on the edit button it takes you to the edit page and populates the controls with selections from the database. I have an options table that stores the VehicleID and Option ID. When the page loads it fills all the DropDownLists for the vehicle info with the data and selects the correct item according to the database selection but the CheckBoxList does not select the items that are on the Options table. I checked the query in SSMS and it returns the correct data. I have stepped through the method and it works till the "(currentCheckBox != null) if statement. It doesn't throw any errors but it also doesn't select items when the page renders.
I thought it might have been something with the page life cycle since databound controls don't render until the end but the DropDown's I have fill and selects the correct item according to the database.
i am trying to develop forum page in asp.net using c#. I have listed forum threads lists as Title, Description, Posted On, Posted By like that using Listview. Now my idea is if the user clicks anyone of the title from the list the control will move to new page. there based on thread title selected from listview i would like to display the reply msgs posted for that. i am struggling lot here.
View 2 RepliesNeed a little guidance on handling selected items in a listview and sessions.
First, the CheckBoxList looks like this:
[Code]....
In the code behind for that page, I'm trying to put the store the selected values into the session like this:
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Finally, I want to retrieve the items and wind up with a string containing the items (I think I want a string--what I need to do is put the items into a variable so I can display them in a Label control and also include them in the text of an email that gets generated. Here is how I'm attempting to retrieve the items:
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But my variable "Opportunities" ends up with this value: "System.Web.UI.WebControls.ListItemCollection".
I am designing a page for my students to practice their Latin vocabulary. I am having two problems with the design: 1) working with checkboxes, and 2) display one returned row at a time. 1) First, students select from CheckListBox1 those parts of speech (nouns, verbs, adjectives, etc.) they want to review, and then they click Button1 ("Submit"), which fires off a SELECT statement against a table named CoreVocab in a SQLEXPRESS database. How do I pass each selected part of speech from CheckListBox1 as a variable into the WHERE statement when the user clicks Button1? Do I place this code in the Button1_Click on the .cs page?
2) the table returns the first row and Button1 changes to "Next," which the student then clicks to see the next Latin word. How do I get the Repeater table to show only one row at time until the Next button is clicked? And how do I get the same button to executed two functions (fire off the SELECT statement and then show the next row)? For what it's worth, I'm using the SqlDataReader command, since data will only be retrieved, not modified.
I have a GridView which I have a List bound to - I want to be able to allow filter of the data based on multiple CheckBoxLists. For arguments sake let's say I have a List of Jobs, and I want to filter the jobs by code - So I would have a CheckBoxList likeC#ASP.NETphpF#etc..If someone selects multiple codes, how do you pass the values into a List to rebind to the GridView? Is there a way to pass values as an array? Or maybe a comma seperated string?Any examples (I'm a C# boy) would be greatly appreciated, and I hope I have explained it properly :S
View 3 RepliesWhat is wrong with this code:
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I am getting error message:
C:ProjectsMattBookQuestExport.aspx(123): Build (web): Literal expressions like '<%$ ConnectionStrings:BookList %>' are not allowed. Use <asp:Literal runat="server" Text="<%$ ConnectionStrings:BookList%>" /> instead.
C:ProjectsMattBookQuestExport.aspx(124): Build (web): Literal expressions like '<%$ ConnectionStrings:BookList.ProviderName %>' are not allowed. Use <asp:Literal runat="server" Text="<%$ ConnectionStrings:BookList.ProviderName%>" /> instead.
C:ProjectsMattBookQuestExport.aspx(125): Build (web): Literal expressions like '<%$ Session["SelectCommand"] %>' are not allowed. Use <asp:Literal runat="server" Text="<%$ Session["SelectCommand"]%>" /> instead.
Without SelectCommand I can compile.
I need to charge my checkboxlist1 from database, eg load fruits and vegetables. When selecting fruits, new filter based on the previous selection in my checkboxlist2. for specific search.
View 1 RepliesIf I want to use a CheckBox control to set a parameter and pass it to another page in session, should my code behind look like this?
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OpenYearRound is the ID attribute of the CheckBox control.Is there a smarter way to do this?What would my code behind look like for a CheckBoxList control? Something like this?
[Code]....
How would I retrieve those values from the session? Like this?
[Code]....
I am reviewing some web code and I am not exactly sure how ASP.net session state works. If a User object is saved to the session state during login, and User.FirstName and User.LastName is set. If other web pages retrieve the user object from the session and set the FirstName to something else is that persisted on other web pages? Or, do you need to re-add the user object back to the session once it has been modified?
View 3 RepliesI'm having problems with retrieving multiple instances of a session variable from an InProc session state. In the following code I persist a simple BusinessObject into a session variable on the Page_Load event. On the click of a button I try to retrieve the object back into 2 new declared instances of the same BusinessObject. All works great until I change one of the properties in the first instance, it changes the second instance as well. Is this normal behaviour? I would have thought as these were new instances they wouldn't demonstrate static behaviour?
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
' create a new instance of a business object and set a containg variable
Dim BO As New BusinessObject
BO.SomeVariable = "test"
' persist to inproc session
Session("BO") = BO
End If
End Sub
Protected Sub btnRetrieveSessionVariable_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnRetrieveSessionVariable.Click
' retrieve the session variable to a new instance of BusinessObject
Dim BO1 As New BusinessObject
If Not Session("BO") Is Nothing Then BO1 = Session("BO")
' retrieve the session variable to a new instance of BusinessObject...............................
If a value is stored in a session object. How do I retrieve the session value in a function in javascript. I tried
var background1 = '<%=Session["test"]%>'
But I get blank
I'm building a web system and various clients will have alternate text for default instances throughout the site. One place is the main nav but there are others. The default may be "project" but they may want to call it "event".I'm heading down the road of calling all the terminology settings (there's a list of about 15) and creating an ArrayList that has the id and either the default or their replacement as the items in the ArrayList.I've also got a enum key list called TermKey that has the defaults and the corresponding ID number.
Throughout the code I'll reference TermKey.Project and then do one of these things that I see as options.
1-pull the text from the session (if the client has set it to "event" then the text "event" will be waiting for the call there)2-pull the text from the database every time I need it.3-pull the client's list each time a page loads.Some thoughts on the impact each way or if there is a best practice for
I need to retrieve Username from the login page in my ASP.NET application so that it is available in other pages also. I am using VS2008. Is there any other of getting the value other than storing them in session.
View 4 RepliesI'm trying to pass some variables from one page to another via the session state and then post those variables to labels on page 2. When I try to write the code for my labels on page2, I get an error of "Declaration expected"Here is my code from that page:
Partial Class Default2
Inherits System.Web.UI.Page
Dim firstname As String = CType(Session.Item("FirstName"), String)
[code]...
Am I missing a page_load event handler or what am I missing?
In C#, How do you pass the Session[] and Request[] objects to a method?I would like to use a method to parse out Session and Request paramaters for a .aspx page to reduce the size of my Page_Load method. I am passing quite a few variables, and need to support both POSTand GET methods. For most calls, not all variables are present, so I have to test every variable multiple ways, and the code gets long...This is what I am trying to do, but I can't seem to properly identify the Session and Request paramaters (this code will not compile, because the arrays are indexed by number)
static string getParam(
System.Web.SessionState.HttpSessionState[] Session,
System.Web.HttpRequest[] Request,
string id)
[code]...
I have a report number that is generated from a page, and I want to display that number in a popup window upon a button click that saves the report to a database. On the original page, here's the code that I am trying to use:
Code:
Private Sub saverpt()
Dim url As String = "popup.aspx"
Dim s As String = "window.open('" & url + "', 'popup_window', 'width=300,height=100,left=100,top=100,resizable=yes');"
ClientScript.RegisterStartupScript(Me.GetType(), "script", s, True)
Session("rptnum") = rptnum.Text
On the popup.aspx page, here's what I am trying to make the rptnum field appear on:
Code:
Private Sub popup_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim rptnum As String = CType(Session.Item("rptnum"), String)
Label1.Text = rptnum.text
End Sub
Currently, the popup will display "rptnum" rather than the actual generated report number.
I have two websites both of which will share the same users in a SQL DB for membership. The first site is the standard site while the other is a subdomain for admins.
If the admin logs onto the either site, I don't want that person to have to re log on to either site if he/she is sent there via navigation. To the user it would just seem like one site. Because user would be using same session, if they log off either site they would have to reauthenticate.
How would I go about passing this information?
I have a number saved in session and am using it in a bunch of pages right now, and I was wondering if I could somehow access this session in my WebService.asmx file? It would be great since then that way I can fix my auto complete extender. I know I can use contextKey, but I am using that contextKey for something else. If session isn't possible in web service, then is it possible to use two contextkeys in auto complete extender, and how?
View 1 RepliesI'd like to be able to reference the asp.net objects Session, Request, from a procedure without passing them in as parameters all the time. Is there a way to do this. For example, now I have
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I'd like to call it like this "ContextPT.GetSession()" and have GetSession know how to find the Session object. I know this does not seem like a big deal in this case, but I have reasons.
I have one ASP.Net web page dynamically loading any one of about twenty User Controls at a given time. Since each user control is somewhat different, I've implemented the following extension to me pass a variable number of parameters to custom user control constructors: [URL]It, by the way, works very well! However, I've now come across the fact that both the web page and the user controls will need to share a few Data Tables. In other words, both the web page and the user control will need to access and manipulate data in these data tables.
To implement this fact I've used the Session object to store each data table. Each of these data tables starts out empty and then starts growing as the user enters more data into the user controls. The initialization of the data tables has to be done in the web page for a series of technical reasons that I won't get into here but rest assured that it does have to occur there.
But I found that in order to ENSURE that the initialization was taking place, it was simplest to just pass a reference to each data table as an extra parameter in the LoadUserControl call. This does work but it seems like overkill to me because on the user control constructor side, nothing is actually done with the data tables at the time of instantiation of the user control.
This made me go back to basics, thinking, "Why include a parameter if you're not actually going to use it?" But yet, it does seem to be the most straightforward way to ensure the data table is initialized and stored in the Session object.
i am trying to pass a value, from my .aspx form to a ashx request via a session or a cookie,
the cookie exists but in the ashx it returns a null, and same with the session value.
in my button4 click event, i want to insert checboxlist items to data table. first i want to delete all of the exisiting and then insert again.
my code is below but it is not working if you could explain anyone ?
in page load I have written code so that existing checkbox items are selected.
[code]...
Scenario : I want to add data from database to checklistbox on page_load and checked data should be stored in other table.I want to bind data to checklistbox like a gridview, i m trying but i m not able to.
View 2 RepliesI can insert a checkboxlist selected value as comma delimited string into the database. But I have hard time to reload it in formview edit mode. I added a hidden label to retrieve the comma delimited string and try to use checkboxlist databound event, but it doesn't work. I don't know what problem is in my code.
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