I load a C++ DLL using DLLImport in my C# ASP.Net web application. The DLL basically reads some CSV files, and manipulates them and creates new files.
After I ran the method successfully, and run it again then I get C++ exception back.
I want to unload the C++ DLL from the website so a user can re- load the DLL and re run the method. Do you know how to either eliminate this error or get rid of this error message so the DLL can be unloaded after its run?
I am adding a usercontrol dynamically in my page, problum is this when i click the save button on the user control it unload itself, how do i sustail on the page untill i himself unload it??
In our WCF service we use a third party product (product C) for querying an external database. We can not change the code in this third party product.
The library is imported for exemple via Declare Function vbPriopti Lib "PRIMCSAM.dll" (ByVal a As String, ByVal b As Integer) As Integer Declare Function vbConnectionClose Lib "PRIMCSAM.dll" () As Integer etc
The problem we face is that the product C keep connections in memory and refuses more connections from the same user/ip address. And their "vbConnectionClose" subroutine does not do proper clean up, something is left in memory and we can therefore not do a new connection.
The only thing to do a new connection is to restart the wcf servcie appliaction on the web server. But I do not want to close my whole app and restart it because of errors in the product C, instead it would be better to just reload the imported dll again?!
What is the easiest way to handle this problem? Restart/close the imported dll? Work with appdomain?
I tried the FreeLibrary method but it did not work, [URL]
When my asp.net aspx page unloads i am trying to check if the current session is expired. I have this code in the Page_unlaod and i get a "Response is not available in this context" error. What is the problem placing this code in the Page_unlaod?
[Code]....
the page is in a frame with 3 other pages so when the page is doing a postback, there is client side code that will the page 2 in the frameset to 100% visible, then when page is laoded and the document is ready it sets itself 100% visible in the frame. I have tried placing the code in page_load but when the session has timedout the pageload is never executed again. I have tried to place the code in the pageload of page 2 in the frameset but that causes some funny behavior and unwanted redirects.
It is a header with two columns: On left column there is a TreeView, and on the left there is nothing (now there is a label to try the thing that I want to do).
When user select a node on treeview a click on Edit button. Code for click event is:
protected void Edit_Click(object sender, EventArgs e) { if ((DestinationTree.SelectedNode != null) && (DestinationTree.SelectedNode.Depth > 0)) { BaseControl baseControl = new BaseControl(); UpdatePanelRight.ContentTemplateContainer.Controls.Clear(); switch (DestinationTree.SelectedNode.Depth) { case 1: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control1.ascx"); break; case 2: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control2.ascx"); break; case 3: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control3.ascx"); break; } UpdatePanelRight.ContentTemplateContainer.Controls.Add(baseControl); } }
Depending on node selected depth is going to load a custom control dynamically. It works, but when the user select another node on treeview, the original label is reloaded on right column.
I have a web application which hangs after clicking a checkbox which is set to autopostback. This checkbox is supposed to do some process.
When I did the breakpoint, the application does not go to the On_PageLoad event but goes directly to the On_Unload event. After that, it hangs. It does not go to the On check changed of the checkbox.
Here are the events that are only called after the checkbox has been ticked.
I have ajax modal popup for Questionnaire for my website and i want to show it on when user leaving the website.
it is working well with page load event. but i want to call it at the time when user want to close website page.
i have tried with page_unload and dispose event but the page was closed directlly without displaying the popup.
Code:
<script runat="server"> Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) mdl1.Show() 'chkbox1.Attributes.Add("onclick", "checkBoxListOnClick(this);") End Sub
[Code]....
dispaly above modal popup on leaving of the website?
In my project i have used master page.In one particular page , i want a function to be executed on page unload(javascript event) event of that particular page.To achieve this i have written
It is a header with two columns: On left column there is a TreeView, and on the left there is nothing (now there is a label to try the thing that I want to do).
When user select a node on treeview a click on Edit button. Code for click event is:
protected void Edit_Click(object sender, EventArgs e) { if ((DestinationTree.SelectedNode != null) && (DestinationTree.SelectedNode.Depth > 0)) { BaseControl baseControl = new BaseControl(); UpdatePanelRight.ContentTemplateContainer.Controls.Clear(); switch (DestinationTree.SelectedNode.Depth) { case 1: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control1.ascx"); break; case 2: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control2.ascx"); break; case 3: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control3.ascx"); break; } UpdatePanelRight.ContentTemplateContainer.Controls.Add(baseControl); } }
Depending on node selected depth is going to load a custom control dynamically. It works, but when the user select another node on treeview, the original label is reloaded on right column.
On my parent page I added a script which ask confirmation befor page unload (On every button press) using window.onbeforeunload, The problem i use to open a subPage on this parent page, and on closing of the subpage i use to reload the parent page, but it ask confirmation and I dnt want that....
Have been stuck with this issue for a few days now, and really need, and would appreciate some help. My requirement is that I want to make a server side callback to clear off some objects when the user navigates away from our page, without clicking logout. For business reasons, our ASP.NET session timeout has to be set to a very high value. Further, I do not want to popup a alert/dialog to force the user to return to the page and click Logoff.The solution I have arrived at thus far is to make a AJAX callback by embedding this javascript in the page.
window.onunload = pageleave; function pageleave() { alert('test');
I've got an website that needs to know when someone has closed a details page. Is there a way to fire a post back using Javascript to call a particular Sub or Function on the Unload event?
