Running ADO Along Side ADO.NET?
Apr 18, 2009
We have a three tier windows app:
- data layer
- Business layer
- Windows Forms
We've half upgraded to .net from vb6 the only thing left to upgrade is the datalayer. They datalayer still uses VB6 ADO.For a smooth transition can we have both the OLD ADO VB6 and ADO.net libraries worlk along side each other:
- Could they use the same connection Object?
- Will using both mean I have to have two active connections?
Your probably thinking why do we want to use both?
- Its mission critical code so the old stuff must still use ADO VB6
- all new classes will use the ado.net objects
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Sep 23, 2011
I've been researching for days and I've gotten to the point where my WCF service creates an Access object via com/interop.I've ran the Open Current Database call for the Access object without an error but Application.CurrentDB is still nothing/null. If the CurrentDB is nothing then I surely can't call Application.Run "myFunction" I realize WCF services aren't meant to be user interactive, but it's a long story why I'm trying to go this route. Basically I need to have a proof of concept ready sooner rather than later and the alternative (correct) route involves the complete re-writing of a large complex access VBA application. It's not a permissions issue, I have the IIS user names added to the security tab. What I really need is a way to set Environment.UserInteractive to true so my WCF service can create an instance of Access on my server machine, run the VBA functions, close out, return true.I'm using VS 2010 for the WCF, IIS 7 for my server, Access 2010 for the VBA application.
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May 23, 2011
Can I send an object from client-side javascript to server-side code via ASP.NET ?
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Apr 13, 2010
I know this defeats the purpose of client side vs. server side (refer to title of this thread). What I would love to do is build my own custom progress indicator on the client showing how far a server side code has progressed. I figure if I could only get a JavaScript to fire and render a value of some control at pre-defined intervals while the server is working I could make it happen - but alas I'm beginning to believe that this is impossible. Below is some code that performs three 2 sec loops. At the end of each I want to change the visible value of a control on the browser. [Code]
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Feb 23, 2012
I have a basic asp.net web page. I have a menu bar divided into 3 columns. Each column displays an xml file. However instead of showing them side by side it displays them one on top of each other. i think it might be to do with my css?
My asp.net web code:
<div class="menubar">
<div class="menuleft">
[code]....
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Jul 13, 2011
Using the following script:
$("#some_button").click(function() {
var changed = [];
[CODE]...
I need to send back the id, the old value from _1 and the new value from _0 back to the server. What is the best way to format this data so I can easily extract the data from the server side so I can easily email someone for example to let them know which textboxes have changed, what the old values were, and what the new values are
At the serverside level, I am using .NET-3.5 (VB). I know how to send the data bacl. and how to email the data, I just wanted to know how to best format the data at clientside before sending it back. I could have upto 50 sets of id, old, and new values to send back. Sorry for not making that clear earlier.
Example:
How can I modify the script above to generate this?
[
{
"id": "name_0",
"new": "text",
[CODE]...
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Dec 18, 2011
I'm working on a 2d game. making a button that can move in a path random up,down, side -side, etc. in a selected space. and once hits end of the form to slide out and reappear at other side of the selected space and do same thing over.
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Oct 14, 2010
Here are my two grids -- they are ExtJs grids however we wrap the declarations in vb.net code:
Dim VehicleOptionsGrid As New Framework.WebControls.Grids.Grid
With VehicleOptionsGrid
.ID = "VehicleOptionsGrid"
.Title = "Vehicle Options"
[code]....
Using javascript, is there anyway I can add a bottom scroll bar to these grids? Doesn't seem like we have a wrapped command to do it...
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May 14, 2011
I currently have a parent Listview and its child Listview displaying in the centre column of an HTML page that consists of three columns left, centre and right. And all looks very good. However I would like to display the child list view in the right column beside the parent list view.
To do this it seems I must somehow generate from the code behind page a new row in the table every time the parent Listview displays a record of its data and then some column HTML so the first child list view will appear in the right hand column.
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Apr 22, 2011
I'm trying to, from a client-side piece, call off to a server-side piece. I need to do this synchronously. On my server-side code, though, I'm calling off to another piece of code, which I want to have a maximum of, say, 10 seconds to return a value. If I don't have a response within 10 seconds, I want to force my own server piece to set my result equal to 0, and return to the client.
Here's what I have on my server-side code so far:
Public Function GetWebResult(ByVal inputParameter As Object) As WebReturnObject Implements IWebInterface.GetWebResult
Dim result As New WebReturnObject
Dim webItem As WebItem = Nothing
[CODE]...
I realize this code is not functional. The problem is that I'm unsure how I would go about getting back into GetWebResult to set the appropriate return values before it is sent back to the client.
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Jun 22, 2011
I am struckup with a problem from last two days. I am creating a web application using VB.NET, Ajax & RAD Controls. When user clicks on a button I want to open a RAD Window and show the list of ledgers available to the user, so that he can select one from the list. And to open that window I have to call a java script function from client side, which is already achieved using the below code.
[Code]...
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Jan 25, 2012
I add an option to a select with jQuery. When I save with an asp button, I don't see the changes on the server side in the click event.
And the HTML is all correct after I add the option.
Is it a coding problem or I don't understand something?
$(selectCourant)
.append($("<option></option>")
.attr("value",$(dropdown).val())
.text($(dropdown + " option:selected").text()));
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Jun 18, 2012
I have an application which have multiple tab pages. On of these pages I have a group box with many controls that do something.Now the problem is I want to add exactly the same group box by the current one that can have different paparemeters.This is exactly the way that i want to add comparison capability between to set of parameters.I have more than 500 lines of code that responde to changes of these parameters and does something.Is there any way to replicate the the whole gropbox and use the same code for both and and being able to difrentiate between gropboxes.I think there was an array control in vb 6 but I am not sure if this the best way to do this in vb.net.What is the best way to do this for the least amount of changing the code and wasting time.
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Jul 3, 2010
I have form 1 and form 2 form 1 is already loaded. When i load form 2 i want it to apprear right next to form 1 on the right hand side. What code should i use to accomplish this.
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Jan 18, 2012
Basicly I have a program that retrieves data and parses it, which is fine, so it starts from:11:981.8 which equals to November 981.8 now what I have done is split the "November" and the "981.8" into 2 different arrays, with other similar data, now what I need to be able to do, is sort the array in either Ascending or Descending order, however keeping in tact, the November and 981.8 side by side in a list box.
My current code is:
Private Sub sortData(ByVal strYear As String, ByVal strSort As String)
lbDispData.Items.Clear()
Dim strData As String = My.Settings.usage2011
Dim arrRawData() As String
[Code]...
EDIT: Just to mention, there are many more values, not just November and 981.8, there would be for example December and 128.1, January and 191.1, etc.
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Jun 3, 2011
I am starting a butterfly program and having an issue and really just barely have it started and would like to get some helpfeedback on how to do this. The following is the instructions and I will make a second post on what code I have so far...The butterfly is going to be moving from side to side in a slightly upward assent when the animation starts. You need to build a set of controls that allow the user to control whether the butterfly ascends (up) or descends (down) and also allows the direction of the butterfly to change (left or right). The best way to implement this feature is through the use of keystrokes that when pressed act to control the direction of the butterfly. Whether you implement this feature through keystrokes or controls, make sure that the feature is communicated to the user.
Butterflies fly by opening and closing their wings. So it is expected that the butterfly will alternate between opened and closed as it wings its way across the form. If the butterfly is moving right, make certain the butterfly graphic displayed shows the butterfly as moving toward the right. If the butterfly is moving to the left, make certain the butterfly graphic displayed shows the butterfly as moving toward the left.
If the butterfly reaches the top of the form in its assent, it should wrap around to the bottom of the form. If the butterfly reaches the bottom of the form in its descent, it should wrap around to the top of the form. If the butterfly reaches the left edge of the form, it should begin flying toward the right side of the form. If the butterfly reaches the right edge of the form, it should begin flying toward the left side of the form. If the user changes the direction of the butterfly, insure that the correct graphics are used in relation to the direction of the butterfly and that the butterfly moves in the indicated direction. Please note that when the butterfly reaches the edge of the form, the butterfly must change direction regardless of any user input.
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Dec 28, 2011
Ultimately, what I want to accomplish is an AJAX-based messaging system. I already have a database table for messages, and an ASPX to add new messages (and declare old messages no longer relevant).
The current messaging system simply polls the server every 15 seconds, and re-pulls the current message set.
What I am looking to do is: On $(document).ready(), register an ajax callback function that listens for a server-side event (e.g., MessagesUpdated) On table insert/update, fire MessagesUpdated server-side.
This way, whenever the table is updated (or new records added), any clients listening know that new data is available and can re-poll the server then.
Ideally, I'd also like to make the new data available as an event argument (to minimize re-polling the db).
I can find references to something like this in other languages, but I cannot find any actual code examples to get me started.
Assuming this is possible to do via .Net, can anyone help get me started on this?
I'm using the 2.0 Framework. Also while I added a VB.Net tag, I can read C# reasonably well, so please feel free to post in either language.
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Dec 2, 2009
Im creating a space invaders game that has a group of "invaders" moving side to side and when i shoot one it gets destroyed, my invaders are in an array. So in order for the invaders to keep moving right until they get to the edge, i made a function that detects which invader is right most. But this was crudly done as I wa trying to make the opposite of my left most function which works. So my rightmost function dosent work
[Code]...
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Apr 24, 2010
I had done one application using api which send the message to given number. The working of software is very fine without any error working on windows XP SP2. I heard that vista already contain the .net frame work so didnt installed .net frame work in machine. I checked in vista it shows .net frame work is in machine. But when same code i tried to run on Vista it gives the error. Error is as follows
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
at SmsSendingApplication.frmSingleMessage.InternetOpenUrl(Int64 hInternetSession, String& lpszUrl, String& lpszHeaders, Int64 dwHeadersLength, Int64 dwFlags, Int64
[Code].....
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Jun 4, 2011
what account for this error message in ls beta 2?'' The last change wasn't successfully persisted.Please shot down the running application.
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Jan 20, 2010
I want to prevent my program from running when it is already running.How can I do that in my vb2008 Code?
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Dec 28, 2009
I have an ASP program that synchronizes 2 databases. I also have a VB.NET program compiled down to an EXE that fills the source database before the synch happens. In the back of my mind I know I should be able to link the VB & ASP .NET programs together since that's the power of .NET. Alternatively, if I could run the EXE from ASP it would be just as well for my project. I do have the source to both programs. The ASP script was written with a text editor - the VB was in VB 2008 Express.
assume I know nothing of linking assemblies and such because I don't - I just read that in an article. I'd prefer ASP but if necessary I could use the ASP.NET script to launch the EXE. The code is legacy ASP with VBScript so all our ASP.NET stuff is the VB flavor as well. C# makes my other programmer's head hurt so for his sake this will have to remain VB.
Is there a way I can relatively easily launch the EXE pre-sync program and have it run when the ASP synch script starts?
The server is MS Windows Server 2003 SP2 / IIS 6.0 / the .NET version is 2.0.50727.3603.
By the way - I'd love to "learn to use .NET properly" but time is short for this project and in-depth research will have to wait.
EDIT: Aaron's answer below gets me most of the way to the solution but I'm getting:
Exception Details: System.ComponentModel.Win32 Exception: Access is denied
Source Error: Line 17: process1.Start();
SOLUTION: Aaron's answer below plus the knowledge that ~/ in MapPath is the virtual root of the website and the file to run is relative to that.
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May 7, 2009
I am trying to write a Windows Script that will allow me to monitor the following: That 2 x seperate but specific processes within Component Services "Running Processes" list are currently running and have not reset within the past hour. If I already know the PID, then I can retrieve the CreationDate (I assume which I can use to check for restarts? or is this the actual process creation/installation date) for each specific process, however if a restart occurs the PID will change and my script needs to know what the new PID is without me telling it!
[Code]...
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Aug 27, 2010
We have a windows service running under a network account that calls and runs an ActiveX exe. The exe is running under the local system account, not the network account of the service.
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May 20, 2011
I wanted to build a front end web page so that I can start and stop various programs on my server remotely. I know that Shell will open something locally, but how can I make an ASP.Net page which activates programs server-side? Googling got me the "Shell" method, but I don't think that works server-side.
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Jul 28, 2010
i am using this code to print Its working but i want to take print on right side of the page how can i do this form width is '352' and form height is '498'.
Dim linesPerPage As Single = 0
Dim yPosition As Single = 0
Dim count As Integer = 0
[Code].....
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Feb 13, 2012
how can I use both the left and the right side of a toolstrip?I mean, f.e. on the left side are some buttons, on the right side two text fields.
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May 16, 2011
I know this has been asked a lot, but I have a server-side custom validator that is not being fired, and I cannot find why (also, I've copied examples that work from other places and cannot make it work...)
The code:
<asp:CustomValidator ID="MyValidator" runat="server" ErrorMessage="My error message" OnServerValidate="MyValidator_OnServerValidate" />
Validate function
[Code]...
EDIT 2: Added a Page.validate() on my button code, and it does not call the server side of the validator.Also, the custom validator is being called (at least the client/javascript side of it, but not the server side)
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Nov 8, 2010
I'm new to programming and I'm trying to create a hex editor. I got some source from internet which I want to modify to my needs. But this hex editor is opening the hex files in text box. I want to open it like a grid(Like Excel). Also I want to add the line number on the left side and I want to remove the right stuff info.
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Jul 26, 2010
I was having problems inserting a string into the following tag : <tr id="rowBulkOptions" style='<%# sBulkOptionsRowStyle %>'> Don't ask why I'm using tables sBulkOptionsRowStyle is a Public string in the aspx.vb file. Seemingly the only way I can get this to render is to put Page.DataBind() in the Page_Load, Page_PreRender etc.. However this causes me problems because Page.DataBind() binds all controls on the page. I could use <%= BUT another part of the code inserts controls into the page and apparently you can't use <%= and insert controls.Is there a way I can just say 'look, put sBulkOptionsRowStyle into the page
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