Asp.net - Updating A Div Section On A Content Page From An Event Handler Within App_code?
Nov 3, 2009
My current problem, as stated in the title, is that I am trying to create a series of buttons from a custom class within app_code and place them on a master page. The whole reason for this is I do not want to have to copy and paste event handlers on the content pages.
However, upon the click of these buttons I need for a method on the content page to be called and update html within a div of the content page.Is there any way to accomplish updating the div of the content page from an event handler in the custom class? Remember, the method that updates the div exists on the content page.
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Dec 30, 2010
I have a sample app here I could use a hand with Basically I'm trying to update the TextBlock on the main page using MVVM when the content the frame updates the the property. Please find the code attached below:[URL]..How do i get the button inside the frame to change the variable and update the TextBlock on the parent control?
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Dec 29, 2010
Can we use Content place holder within the head section of a master page?
For example :
<head runat="server">
<title>Untitled Page</title>
<asp:ContentPlaceHolder id="ContentPlaceHolder2" runat="server">
</asp:ContentPlaceHolder>
<link href="StyleSheet.css" rel="stylesheet" type="text/css" />
</head>
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Nov 4, 2010
HOW TO RUN THE JAVASCRIPT FUNCTION ON PAGE ONLOAD EVENT IN CONTENT PAGE OF MASTER PAGE.? means i have masterpage and the content page of master page namely default.aspx in vb.net.i wanna run javascript function in Default.aspx and i have called the function body onload in master page.when i run my website it shows the error "" Microsoft JScript Runtime Error : Object Expected ""
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Nov 11, 2011
Everyting is OK, but when I click on F5, it refresh the page and run the code another time. This means a new record is added to the data base on each F5.This is my code, do you have any advices?
Imports System.Data.OleDb
Partial Class Default2
Inherits System.Web.UI.Page
[code]....
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Apr 13, 2011
For several days now I've been messing around with Ajax calls using different combinations of javascript, ASP controls, and regular controls. I've gotten a bit of understanding about what's going on, but using ASP controls still hides too much of the machinery, and I want to have a deeper understanding. With that aim, can anyone tell me why the following setup doesn't quite work?I have a file "Testy.aspx" with the following:[code].....
So, I hoped to make my .aspx file do double-duty both as the regular-page request handler as well as the Ajax request handler. However, when I click the button ("baroo") to generate the Ajax request, the result that ends up written back to the "testytext" div is the raw html for the entire page, as if under normal request conditions. Clearly, my attempt to override the page request by making the code-behind implement IHttpHandler and supplying an "Overrides Sub ProcessRequest" method is not working. The server is still treating the Ajax request as a normal request, and in fact my own "ProcessRequest" method is never even called.Is it possible to build a page/handler like this? How can I intercept the incoming request from the client and respond accordingly?This is how Ajax works, right? So it must be possible.Again, I'm deliberately doing this as an excercise to avoid the use of "magic" ASP controls like UpdatePanels,
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Dec 14, 2011
I am trying to learn Visual Basic and am working through a text book that my son used for a class. Each time I create an event handler by double clicking on the design page, the code that automatically populates is almost identical to the code in the book, except the byval portion is omitted from the code.[code]
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Oct 24, 2009
I have a windows application that has a tab control with 5 different tabs. Each of these tabs has a datagrid view that is populated with data on form load with data from SQL Server. I have an event handler for the datagrids for CellValueChanged that appends an asterisk, "*" to the tab, when a change is made, this is meant to mimic the same behavior in VS or SSMS. The issue that I have just realized is that on page load as the datagrids are populated this event handler is raised thousand of times. I have included an If Then statement to exit the sub if it occurs during page load, but am concerned about the performance implications, if any. Is there a better way to handle such functionality? Possibly a way to ignore the event handler on form load? If not is there a negative impact leaving this functionality in?
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Apr 18, 2011
The event handlers in my parent class are never called though the events are raised in the child class.
The Code:
Public Class childForm
Public Event checkboxchangedEvent(ByVal checkbox1 As Boolean, ByVal checkbox2 As Boolean)
Private Sub checkboxchanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged, CheckBox2.CheckedChanged
[code]....
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May 2, 2012
I am creating a custom config section that will allow me to manage what ELMAH exceptions I want to ignore from my VB.NET/ASP.NET app. Here's my code. I made it easy to paste in a blank code file if anyone's up to the challenge of diagnosing the problem.
CODE:
When I execute this code:
CODE:
I get the error An error occurred creating the configuration section handler for IgnoredExceptionSection: Could not load file or assembly 'WEB' or one of its dependencies..
What boggles my mind is that this all works fine in my C# console test app after I convert the code from VB.NET using a web utility. However, when I paste the VB code from my web app into my VB.NET console test app, it doesn't work there, either, so it appears to be a C#/VB issue. What am I doing wrong here?
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Nov 2, 2010
I have put together a custom configuration section handler (vb.net), based on gleanings from a variety of sources (including stackOverlflow), however when I come to use it, I get the following error message "The Configuration property 'deviceconfig' may not be derived from ConfigurationSection." The app.config file looks like this:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
[code]....
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Aug 27, 2011
How do I get a Event Handler to fire from within a nother Event Handler?
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Mar 21, 2012
remove an event handler from within the event handler?
I have a class that gets data from a hand scanner. When the scan is complete and the data is validated, the class fires a custom "ScanComplete" event and returns the data in a custom EventArgs.
In the calling program, I'm creating an instance of the scanning class and adding a handler for the "ScanComplete" event. In the event handler I get the data that was scanned and then remove the handler.
It seems to be working but it feels wrong to remove the handler while I'm running inside the handler. Will this cause a problem?
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May 11, 2011
The thing is i have a Master page and a Content Page. I have a LoadComplete in Content Page and a PreRender in Master Page. The problem is one of my htmlcontrols on content page i change on the LoadComplete event server side of the content page. I also have some code for disabling controls on the Master Page PreRender event. For some reason all controls on the aspx side go through the Master Page prerender except the ones that i change on the LoadComplete side. How can i make sure the entire content page loads and then the Master Page PreRender event is called, making all the controls go through that event.
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Jul 2, 2011
I have master page in ASP.NET. I have added two asp controls to master page i.e. _EmpDROPDOWN and _findBUTTON.I have one content page. FindEmployee.aspx which shows result list of employees (Gridview) based on the selection made in _EmpDROPDOWN when _FindBUTTON is clicked on Master Page.I dont know how to read Master Page button click evenet in Content page.How to read master page button click event (VB.NET syntax) in Content Page?
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Mar 3, 2010
How to Update a div tag in Master Page using a button click in Content page? or Wise versa?
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Jun 17, 2010
Can I use a link label to go to another section of the page similar to HTML
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Nov 5, 2010
I can add NavigatorMenu item in Master Page like this:
Partial Class Site
Inherits System.Web.UI.MasterPage
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[code]....
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Apr 13, 2010
i have a page called a1.aspx, with the Masterpagefile = a1_master.master. Now the master page has its own divs and images for design purposes. I want a way where when i load a1.aspx, certain chosen 's and images should be hidden (visible=false). how can i do this? how can i change the visibility of a div or an image in the master page from the content page?
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May 11, 2011
Just as the title says. I have code that disables all controls that runat=server. Its as follows
Dim c As Control
For Each c In pc
If c.HasControls Then DisableAllControls(c.Controls)
[code]....
But I have a couple of href's in there that i want to disable also. I know they dont runat server, so how can i catch these?
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Sep 6, 2010
I have an web application of 200 web pages and all has a single master page. Most of the content pages use AJAX controls so most of content pages has its own ScriptManager. Now I have a requirement to add a link with HoverMenuExtender control and for that I need to put ScriptManager in the Master page, but it is working only in the content pages where there is not ScriptManager.
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Aug 18, 2011
I am printing reports as tables in .aspx pageNow i want to print that section containing table. how can i print that section only?As I got javascript function to print the whole page with window.print() but I want only some section to get printed.
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Nov 27, 2010
I'm trying to complete this airline reservation application, but having a problem in this part of the question:Creat an event handler for the FlightBindingSource's PositionChanged event: select FlightBindingSource in the class Name combobox then select position changed in method name combobox to creat the FlightBindingSource's PositionChanged event handler. Write a code to access the currently displayed flight object and pass its flightNumber to method DisplayPassengers as a decimal.This Is my code so far:
HTML
Public Class AirlineReservationForm
Private database As New ReservationsDataClassesDataContext()
Private Sub FillAll()[code].....
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May 13, 2009
I'm just starting to learn vb.net and have never worked with cookies. I'm wondering if I can store an array of name value pairs in a cookie, so they can be retrieved by index number. I'm not really even sure if that's the best way to handle the issue. I basically want to have three things: an 'add/delete' page that has a text box for creating new favorites, along with a list of their current favorites, with the ability to individual delete favorites from the list.be able to display their existing favorites from the cookie on a separate page and a button I can put on all my pages for 'add this to favorites'I don't mind doing the research, of course, but really need direction on what will be required. Having never worked with cookies, I don't really know the limitations.
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Oct 20, 2009
Below I create an array of labels. I would like to add an click event to my labels. Can someone point me in a direction?
[Code]...
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Sep 24, 2010
When I utilize AddHandler in VB to add my own method to the Click event :
AddHandler Button.Click, AddressOf myButton_Click
I see that my code executes last - after other event handlers for the Button_Click event. Is there a way to insert my event handler in front of other events so that it executes first?
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Jan 6, 2011
I am struggling with changing the Page Orientation of a WORD document I am creating programatically using VB.NET 2005.I need to change the orientation from Portrait to Landscape after the first page of the WORD document is created.I create a WORD document (2007) successfully and then begin to populate the WORD document with report information (taken from reading a text file and writing some if it to the WORD document)...I am using COM Microsoft WORD 12.0 Object Library....After the first page, the document needs to be changed from a PORTRAIT orientation to LANDSCAPE orientation.Since my application is generating several WORD documents from this one text file, it needs to be done programatically.provide assistance with small example of (writing text to word...page break...change orientation to landscape)?
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Dec 28, 2009
I have written a Windows GUI ( using VB.NET) -> Which updates some values into MySQL DB through webrequests. During this process I am updating some richtext data into mysql DB. It is storing the data in the DB along with rich text tags. Is there any way to avoid them
HTML
<pre>{
tf1ansiansicpg1252deff0deflang1033{fonttbl{f0fnilfcharset0 Microsoft Sans Serif;}{f1fnilfcharset0 Times New Roman;}}
{colortbl ;
ed0green0lue0;
[Code]...
INSERT INTO {TARGET REGION}.(TARGET TABLE} ( SELECT * FROM {SOURCEREGION}.{SOURCE TABLE})How can I avoid the above problem. So that only actual content is updated in the DB instead of the data with richtext tags.
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Jul 21, 2009
I have created a service which correctly starts in the services section in windows. Now I am trying to get it to trigger an event.I put a message box in the timer section just to experiment with getting it to pop up and it does work when I run it within vb but when I deploy it as a service it no longer pops up.
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Jan 10, 2010
I'm having trouble getting a datagridview to update into an access db.Here's the code, from what testing I have done it is telling me that there are no rows in the datagridview (datagridview1.rowcount returns 0) when I can visibly see that there are many rows:
[Code]...
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