Say I have a simple web app written in asp.net/vb.net. The web page has one button. When you click it, it does some junk in the code behind. What I would like to do, is when the page reloads, after the server has done its thing, to execute a JavaScript function.
Now the only stipulation is that it can only happen if the button was clicked. Not just on any page load. Is there a simple way to do this?
I have web page with four grid views. Each grid is hidden under a div tag. Whenever user clicks on div the data grid corresponding to the div is shown. I have binded data to the grid views at the page load only, since the data size is huge I cannot load the data binding at the page as the time taking to page load is huge. I was thinking a way that grid view gets data loaded only when user clicks on the corresponding div tag
View 2 Repliesi have this question i was trying to find a way to call a javascript function from asp controllers and i did here is the code :
<script type="text/javascript">
function hello() {
alert("hello world")
[Code]....
and i want to call it from a javascript function so it will be like controller----call---> javascript ---call--->code behind
I have a VB.NET function which looks like this:
<WebMethod()> _
Public Shared Function AuthenticateUser(ByVal UserInfo As String, ByVal Password As String) As Boolean
Dim UserName As String
[code]....
It calls the function, but won't return a value. When walking through the code, my VB function does fire (it will return true so long as the correct password is typed in), but the javascript 'authenticated' value remains 'undefined'. It's like you can't return values from VB functions to javascript.
I also tried
if PageMethods.AuthenticateUser("UserName", "Password")
{
//Stuff
}
But still no luck.
I need to find a way to call a vb.net function in my aspx page from javascript. I have a Jquery function that makes the .drop class .droppable, and whenever I drop a .draggable onto a drop target, my Jquery code successfully fires a java alert statement. All in pure javascript. What I need to do is some heavy math!
[Code]...
I want to calling a javascript function from a asp.net modal window using vb. The javascript function is to close the same modal window. The function I want call is: function CloseModalWindow(winName)
I tried Page.ClientScript.RegisterStartupScript
but that does not work. How can I do that from vb.net code behind?
I'm trying to do something which i am not sure is possible, im hoping someone will be able to prove me wrong.I have a desktop application written in VB .net which needs to post to google analytics, the interface they provide is javascript based. At the moment my application opens an internet browser, goes to a specified URL which in turn executes the javascript contained within, this is cludgey and memory gobling!
Is there any way of importing a javascript file and calling a javascript function without opening a third party browser? would preferably not want to use the browser control either.Is there a way of instantiating for instance a javascript engine and passing it the commands?
I have an aspx page populated with data from an access database using this code:
<asp:datalist id="bookData" runat="server" RepeatDirection="Horizontal" RepeatColumns="3">
<ItemTemplate>
[Code]....
I would like each entry of data to have a button associated with it that could call a server function to submit data to a database. I currently have the button implemented, but no idea how to go about calling a function that would be able to detect what button was clicked.
I have to call a Javascript function that takes 2 parameters and opens a new window. I need to call this function from VB.Net code-behind and I'm not sure how to do this. I can't find any examples of how this is done. Anyone have any ideas?
View 7 RepliesI am calling a javascript in the onclick event in ASP.NET sourcecode, as follows:
onclick='open popuplistitems("ct100$contentplaceholder..........")
how to do the same in vb.net ?
I have the following click once link I'm trying to call from a window.open code in javascript.strURL = 'http://www.methodintegration.com/MethodIntegrationXora/MXConnect.application';window.open(strURL, 'NewWindow')In Firefox its fine, but in IE the popup appears and then disappears after a split second without any download starting. Is there some kind of security on IE to that is preventing the download? Are there any solutions or best practices for downloading click once applications from javascript?
View 2 RepliesI'm currently working with a client's VB.Net code, which was developed for them by a small development shop a few years ago and which they purchased and have been maintaining and uprgrading since. This client's primary developer is out on indefinite (likely permanent) medical leave and I'm now filling in until they bring in a full timer (as I'm a contractor here). My current task is to add some functionality to a the VB.Net code they purchased. I'm finding practices and techniques in the code that absolutely baffle me and can't make the code do what I want. I'm starting to wonder if it's me and was hoping to get some thoughts on the code I've encountered.
For example: Setting a variable to accept the result of a function by calling the function with many parameters, clearing the parameters in the function, setting them to some value, calling another function with those new values, then never using the values returned by the functions. I'll add a code snippet in the first comment since this is already getting long.
I wrote the below function to sleep, while processing the window events. It works well enough, but I'd like to improve the accuracy of the sleep. Example - If you call it with 10 msec (0.010), it can take up to 15 msec of real time before it exits. How to make it closer to 10 msec?
Public Sub Spin(ByVal TimeInSec As Double)
Dim tsStart As TimeSpan = Date.Now.TimeOfDay
Dim tsNext As TimeSpan = tsStart
Dim TimeSlept As Double = tsNext.TotalSeconds - tsStart.TotalSeconds
'wait for Time seconds
[Code] .....
I have a function where I am performing a lot number of database operations inside a Sub. The operation when called directly like:ExecProcess()
takes about 11 seconds to run.However, if I create a Delegate, and call the sub using BeginInvoke(), the very same process takes over 40 seconds to execute.Here's the threaded code:
Protected del As ProcessDelegate
Protected Delegate Sub ProcessDelegate()
del = New ProcessDelegate(AddressOf SELocal.ExecJob)
Dim cb As New AsyncCallback(AddressOf Me.ExecJobComplete)
del.BeginInvoke(cb, del)
Anyone know what may cause a function to take longer inside a new thread, rather than calling directly?
I just noticed it last night, Anyway, let's get to the interesting case here. I have a ButtonField within DataGrid, and if you notice it here... The Interface of that ButtonField is looks like a LINK. But if we hover on it, it appeared as Javascript's call. Here is the Image ScreenShot
[Code]...
I have ...
Private Sub TestTask()
Debug.Write("Running")
For i As Integer = 0 To 60
[code]......
I am having a problem with the BackOrdered Function of my program. I can`t get it to say anything but 0 when I run the program. Another problem I am having is the input box pops up like 6 times and it`s only suppose to once. [Code]
View 9 RepliesI am connecting to my mail server using IMAP and Telnet. Once I am connected I am marking all items in the inbox as read. Some times the inbox will only have a couple of e-mails, sometimes the inbox may have thousands of e-mails. I am storing the response from the server into a Byte array, but the Byte array has a fixed length. [code]...
But the response from the server varies based on how many e-mails are successfully marked as read since I get one line of confirmation for each e-mail processed. There are times where the response may contain only 10-20 lines, other times it will contain thousands of lines. Is there any way for me to be able to get the response from the server in its entirety? I mean it seems like I would have to know when the server was done processing my request, but I'm not sure how to go about accomplishing this.
So to reiterate my question is: How can I check in my program to see when the server is done processing a response?
I have an application that gets terms from a DB to run as a list of string terms. The DB table was set up with nvarchar for that column to include all foreign characters. Now in some cases where characters like ä will come through clearly when getting the terms from the DB and even show that way in the table. When importing japanese or arabic characters, all I see are ? Now I have tried converting it using different methods, first converting it into utf8 encoding and then back and also secondly using the httputility.htmlencode which works perfectly when it is these characters but then converts quotes and other stuff which I dont need it to do. Now I accused the db designer that he needs to do something on his part but am I wrong in that the DB should display all these characters and make it easy to just query it and add to my ssearch list. If not is there a consistent way of getting all international characters to display correctly in SQL and VB.net
I know when I have read from text files I just used the Microsoft.visualbasic.textfieldparser reader tool with encoding set to utf8 and this would not be an issue.
Possible Duplicate:
calling ASP function from javascript
okay running this code :
<script type="text/javascript">
[code].....
how can i call a VB function - deleteevent() in usercontrol.ascx.vb from a javascript function in clickhandler(e) in usercontrol.ascx. The call should cause a postback because i need the usercontrol to display the changes. i am currently trying to do it by using a linkbutton with style display:none, and calling its click event from the javascript function. But i dunno how to call the click event.
[Code]...
I just learned some basics of multi threading in VB.net recently as I came across processing a large List of records and inserting them into SQL database one by one.
I have code look like this:
Private Sub btnLoadNow_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLoadNow.Click
Dim autoLoad1 As New Thread(AddressOf AutoLoad)
autoLoad1.Start()
[CODE]...
Itemlists is a global lists i retrieved from database, everything looks fine to me but when i run this program, I found that the threads are inserting one records 9 times into the database(I have 9 threads in total), which makes me think that maybe i need to specifically assign 1/9 of a list to each thread? Is there another way to do it which doesn't require the splitting of the list, if not , how do i split it then assign?
2008 Array Processing and Sequential File Processing
View 14 RepliesIm a college student and this is my first programming class, i am having extremely diffcult time with arrays and sequential file processing. Im not asking for the whole program, just something to get me started and hints along as i progress with it. Please help me get started on my program, its due in 2 days.
Here are the requirements....
1. The program must input any number of individual�s last and first names using two separate textboxes.
2. The array of names must be sorted by the last name using a bubble sort. You must code the sort.
3. The program must be able to recall the names from the file and add to the existing list of names so that more names can be added to, sorted, and written back to the file in sorted order.
4. Sort in ascending order: A to Z
5. All names must be displayed in a listbox in sorted order when the user wishes to see them.
6. In the listbox the last and first names must be separated by a comma and a space. Example: Smith, Mary
7. The user must be able to search for a name in the array, using the binary search algorithm. You must code the search.
8. Do not use module-level variables. Instead you may choose to use Static.
9. The program must be designed using Visual Basic 2008
Say if you had two private subs on a form, how do you ensure the first sub called has completed it task before the second is run.
[Code]...
i have a java script function which help to calculate the total cost by taking the price * by the quality
<script type="text/javascript">
$("[id*=txtQuality]").live("change", function () {
if (isNaN(parseInt($(this).val()))) {
[code]....
I am using textbox(txtFileType) with event OnFocus=("this.blur();"), so I can't use textchanged event for this textbox, I have written a vb code to calculate my FileNumber using Storeprocedures based on the value of textbox(txtFileType). Can I call this vb code from javascript which can be used in clientside.. please help with an example..
View 2 RepliesHow can I call a javascript function at the end of a vb.net S
View 3 Repliesi make a program use javascript to call VB.Net function..but it doesn't work...can somebody help me to check this code...Imports System.Runtime.InteropServices
[Code]...
I have used the PInvoke Signature Toolkit to create VB.NET function definitions for three fairly simple C functions contained in an external DLL. The problem is that two of the parameters are structures so pointers need to be sent and one structure (fileview) is undefined.
OpenFileView(filename, &fileview_ptr)
ReadFileInfo(fileview_ptr, &fileinfo_ptr)
The structure of fileinfo is defined so I can create a structure definition in VB.NET and create an IntPtr to that structure with Marshall.AllocHGlobal. And then I can use Marshall.StructureToPtr to copy the data and do the inverse when the data is returned.
[Code]...
