while comeing back from page2 to page1 I need to load the checkboxes in the same state when the page navigated from Page1 to page2.Below is the code that I have written.All the loops and conditions get executed as expected,but when the page loads all the checkboxes are unchecked,even thouse which were checked.I am not able to understand why the code is not giving the expected result?
[Code]....
I am dynamically binding a typed list to a GridView control.
The Grid View Control is in an asp.net page that is wrapped in an asp:UpdatePanel (Ajax).
The first column contains a checkbox control.
Only one checkbox may be checked in this column.
If the user checks a checkbox, all other checkbox must be unchecked.
I am trying to achieve this using client-side script without success.
In the handler for the GridView's RowDatabound event, have attempted to add an attribute to the CheckBox contained within the cell.
[code]....
Related to this thread: Gridview CheckBox Persist in Paging
Is there any other option than ViewState or Session to save the datatable ?
I have searched and searched and unable to find an easy to understand answer with a sample of what I am after. Apologies I am new to ASP and programming VB.
View 5 RepliesI want to select all checkBox in Gridview when click to header checkBox.I have created design such that CheckBox is not available to header of Gridview.It is in other table. Below is design of gridview.
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when i checked the checkbox in parent gridview, all checkbox in child gridview will be checked.
how can i select the checkbox of child gridview checkbox in the when i select the checkbox from the parent gridview?
code behind
protected void OnCheckedChanged(object sender, EventArgs e)
{
[Code].....
I'm facing a very serious issue like application is throwing an error "Operation is not valid due to current state of an object" when have a post back. My page has a grid view with text box inside without paging because it's a delivery page, I was googling and understood this error can over come by addingÂ
<appSettings><addkey="aspnet:MaxHttpCollectionKeys"value="2001"/></appSettings> in web.config file, I added the same with more value, but system is still throwing the same error.
In my asp.net +vb+access web i have made a login page and the code is as under
Dim connectString As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=C:webauth.mdb"
Dim con As OleDbConnection = New OleDbConnection(connectString)
con.Open()
Dim cmd As New OleDbCommand("select * from Users where userid =@userid and Password=@password", con)
cmd.Parameters.AddWithValue("@userid", txtUserName.Text)
[Code] ....
I am getting error The connection was not closed. The connection's current state is open.
How to maintain selected CheckBoxes' states in different pages inside the Repeater control and list out the selected checkboxes values.
View 2 RepliesI would like to ask why I encounter this error when multiple user accessing in my online page.
Here is the error message.
Execute Reader requires an open and available Connection's current state is connecting.
I am using dot net 3.5.
I have a grid in which there are text box and check box as template column.
But when I move from one page to another the value of checked check box is lost.
How to maintain the value through all the pages in grid.
I've created a visual webpart .My user control is gridview,in which one of the column is checkbox.The checked state of my checkbox within a gridview get disappeared during postbacks. I want to maintain the checked state.
View 1 RepliesI in page load i change the checkstate of checkbox false to true or true to false, in turn which i expect to fire the check_change state but seems not firing the event
protected void Page_Load(object sender, EventArgs e)
{
chkDegisim.Checked = true;
chkDegisim.Checked = false;
}
protected void chkDegisim_CheckedChanged(object sender, EventArgs e)
{
int a = 1;
}
when i put a breakpoint to chkDegisim_CheckedChanged, it does not fall into the event chkDegisim_CheckedChanged.
chkDegisim's autopostback is true and i have declered chkDegisim_CheckedChanged event in aspx.
why it does not fire chkDegisim_CheckedChanged event?
I have a multiView control within which I have 3 views as part of building a customer order.
Step 1: Customer is selected from gridView and Customer Name is saved in MultiView Session.
Step 2: Products are chosen from gridView. The grid is re-bound depending on which product category is selected in a dropDownList. The product details are also stored.
Step 3: All of the details required to build the INSERT query are passed to labels on a form to be reviewed before committing to db. The next stage, now that I have managed to select multiple rows, will be to display this data in another gridView.
Everything works fine, except for the paging and dropDownList which is causing the checkbox state to be lost after postBack.
I've read a few articles on this, but I think I have made the task more complicated due to the dropDownList in addition to paging. Essentially the customer will be able to select various product lines, across various bindings of the gridView so I need to persist the checkbox state and retain the data for the INSERT query.
I have a GridView that I was previously populating via an ObjectDataSource, and this code was working perfectly (ie, when the checkbox was checked Checkbox.Checked = true):
CODE BEHIND:
[Code]....
[Code]....
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkRDR1" runat="server"/>
</ItemTemplate>
</asp:TemplateField>
=========================================================================================
Dim checkbox As CheckBox = CType(row.FindControl("chkRDR1"), CheckBox)
I am trying to write a code that I can attach to a .aspx page using <!--#include file="newcode.aspx"-->. What I am trying to do is check to see if they have an current or active session and redirect them if they don't. It seems like this should be pretty
simple, but I have not been able to get anything to work. This is only being used on One page. What I have tried is:
[code]...
I have a section in my web app that displays the user's name, the current datetime and a logout link. What i would also like to display is the time left for the session.Is this possible? I'm using an ajax timer to give the user the real time, so if i could display also the time that is left for the session to end would be great.
View 6 RepliesI made some adding of dynamic checkbox and it would be located in the panel. And at the same time the checkbox would be save also in my List(Of Checkbox).
BTW, my checkbox is not the HTML control (if that's how you call it). Now i made some function wherein Im going to get all the state of my checkbox in that particular panel. This is how I do it:
Code:
For Each ctrl As Checkbox In listControl
if ctrl.checked = true then
' code here
end if
Next
Unfortunately nothing happen. So how am I going to check the state of my checkbox. I already test all the checkbox saved in my list(of T) and also tried looping "Me.pnlControl.COntrols"
I would like to know if anyone knows of any way or software that will give me a count of the number of unique users to use my site in the last 5 minutes. I want to make some updates to my site during the day but I want to check to see if there is slow traffic then I can do it but if it's busy I can wait till a later time.
View 7 Repliesin storing the checkbox list items in session. I have a checkbox list as follows
asp:CheckBoxList ID="cblScope" runat="server"
onselectedindexchanged="cblScope_SelectedIndexChanged">
asp:ListItem ID="liInScope" runat="server" Value="true">In Scope (Monitored)</asp:ListItem>
<asp:ListItem ID="liOutOfScope" runat="server" Value="true">Out of Scope (Unmonitored)</asp:ListItem>
/asp:CheckBoxList>
I have to store the value of the checkbox in session when they are cheked.
When I use Viewstate in another cs class file it showing error,.The Name Viewstate does not exist in the current context .
View 5 RepliesIn a page (not default) I have:
Protected
Sub Page_Load(ByVal sender
As
Object,
ByVal e
As System.EventArgs)
Handles
Me.Load
Try
loginRep = BusinessLogic.SR.GetUserName("99999")
System.Web.HttpContext.Current.Items.Clear()
System.Web.HttpContext.Current.Items.Add("RepId",loginRep)
I don't any errors and when in the run in the immediate window:
? System.Web.HttpContext.Current.items("RepId") in the immediate window on THAT page I get the OBJECT.
Then I have a hyperlink with navigateurl to the next page "~/ActCnt.aspx"
On that page, ActCnt.aspx, when in the code I have:
Protected
Sub Page_Load(ByVal sender
As
Object,
ByVal e
As System.EventArgs)
Handles
Me.LoadIf
Not Page.IsPostBack
Then
Dim loginRep
As BusinessLogic.SalesRep = System.Web.HttpContext.Current.Items("RepId")
In the immediate window ? System.Web.HttpContext.Current.Items("RepId") returns a String that is equal to "RepId".
Even if I change it to not be an object, but a string I only get the Name "RepId" of the keypair. I have NEVER gotten the actual value.
I am using JavaScript's PageMethod functionality where I am invoking a PageMethod which works like a gem. However I am having an issue in accessing the HttpContext's state which returns me a value "SYSTEM" for
HttpContext.Current.User.Identity.Name
which is not the actual current User Name.
I know there are couple options like storing HttpContext.Current in a Session or saving Context's state in some other custom container but given a web farm environment I am assuming that this will not work as expected.
Here is the code I am working on with
function MyFunction(){
PageMethod.MyPageMethod();
}
here is the signature of the server method
[System.Web.Services.WebMethod()]
public static void MyPageMethod()
{
// gives me "SYSTEM"
var user = HttpContext.Current.User.Identity.Name;
}
Also if I use the above code to access user name in OnLoad event of the page then it works fine and returns me the CurrentUserName.
I am trying to get the above code to work in an ASP.NET Webform... :)
So I am wondering if there is a way to access the current actual user in page methods without making use of sessions.
We've got a fairly large, complex web application that uses Forms Authentication to authenticate users. Throughout the application we store and retrieve information about users in the Session object, and in some cases in cookies. In a couple places we check for the existence of the context, and if it's null we send the user back to the login page to re-establish the session. Just a quick run-down of this web app: C#, .NET 3.5, IIS 6, ASP.NET State Service to manage sessionAs for the session timer, we use our own home-grown timer, which is basically a client-side timer, which is backed up by a check to the SQL database to see when their last activity was. This seems to work well for us. It's not perfect, but it allows us to notify the user before the session times out, and allows us to be certain we're not logging a user out before their 60 minutes of inactivity is up.What's happening is that certain users are being logged out after just a few minutes. We've eliminated the timer as a cause and believe what's happening is the HttpContext.Current is null, so the user is logged out. We do not know why the HttpContext.Current is null, and I understand there are many reasons that may occur. What I'm trying to figure out is, is there any way to re-establish the context once it is null? If not, is there anything I can do at this point other than have the user login again? We're also trying to figure out a better way of managing user information (preferences, roles, flags, history, etc), but everything needs context to use, right? Cookies, sessions, cache, etc. all require a response or request, correct? hope this makes sense, because I really need help with this. I've searched the forums here, and found many posts about HttpContext.Current going null, but not a lot of solutions for this...
View 14 Replies
