I know how to call a simple old fashion asmx webservice webthod that returns a single value as a function return result. But what if I want to return multiple output params? My current approach is to separate the params by a dividing character and parse them on teh client. Is there a better way.
[Code]...
In a page to create new user accounts, we have a database with a little of allowable users. To streamline getting the Email address of the new user correct, we want to use an AutoComplete extended textbox.Now I know that WebMethods are working because I have a cascading-drop-down tied to web methods in another page.As I'm just starting on this page, the code is simple.The page itself:
<cc1:ToolkitScriptManager ID="ScriptManager2" runat="server"/>
<p></p> Please enter new user's Email:
<asp:TextBox ID="txtUser" runat="server" />
<cc1:AutoCompleteExtender runat="server" ID="autUser" TargetControlID="txtUser"
[code]....
I'm not even getting to the LogDebug statement. I've used all the same boilerplate code (Inherits, the 'WebService' tags, etc) that worked in the other WebMethod with the appropriate changes to the Class name but this really has me stumped.
I'm trying to use an auto-complete, and it works fine if I call a function without a parameter in the web service:
<WebMethod()> _
<Script.Services.ScriptMethod()> _
Public Function GetCompanyNames2() As String()
[code].....
I'm converting some RDO code to ODBC Provider code in .NET.The problem is parameter names were not specified in the orignal code, but param values were retrieved by parameter name after the command was executed.Is there anyway to have parameter names populated by the provider once the command is executed so calling code can access params by name.Let me show you an example of the declaration of param and accessing of it.
[Code]...
You can now see how this "used to work in RDO/VB". For some reason it would accept this and know what the param names were after execution. I imagine it had to do another round trip to the db to get this info.
Is there anyway to mimic this behaviour in .NET for ODBC Provider (using Oracle)? Or am I stuck manually specifying the param names in the code (I understand this is the better option, but wondering what the alternative is to match the original code as closely as possible).
I am trying to service AJAX requests with a method in my .aspx page. For some reason I am not getting the data returned that I want.
mypage.aspx:
<%@ Page Language="VB" Title="My Page" %>
<%@ Import Namespace="System.Web.Services" %>
<%@ Import Namespace="System.Collections.Generic" %>
[Code].....
When I click mybutton I get an alert "error:" and then whole lot of HTML that says:
Unknown web method testmethod.
Parameter name: methodName
I am trying to use the simple ajax script to webmethod as follows[code]...
View 3 RepliesI'm trying to eliminate a VB.NET button on my aspx page. Trying to use javascript and ajax to execute the same code my vb had.I put in a script manager, set EnablePageMethods to true, added a static subroutine, and referred to it in my javascript function (BTW -- this seems a lot of work just to execute an existing subroutine). The javascript calls my code-behind and it almost works.Problem is, now I'm getting a NullReferenceException when SimulatePrintBatchClick tries to do anything with the controls.
Error is 'Object reference not set to an instance of an object', line is 'pnlVars.Controls.Clear'
Here's the code from UW.aspx:
<WebMethod()> _
Public Shared Sub PrintBatchFromJSWM()
Dim UWI As New UW
[code]....
when I run the above code in PrintBatch_Click it all executes just fine. I really don't understand why it bombs out as a subroutine.
Perhaps this is not the way to do this, but I'm at a loss for finding a different way. Originally this code was handled by an ASP/VB button, but the specs have called for it to be deleted.
I am using an ajax PageMethod to call an asp.net webmethod. From there I'm trying to pass a lot of XML back to a callback javascript function.
Currently I just convert the XML into a string and pass it in that format. But it seems that if the string is too long it causes an error.
[Code]...
So my question is: Is there a better way to pass the XML from VB to javascript, or a way to allow large strings to be passed without error?
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 am using Virtual Basic with ASP.NET in Visual Studio 2008. I am using Webmethod to communicate from/to the server with the client. Data can be queried and returned in small amount, but when I try get a relatively large amount of data, it's returning me a Server 500 error. My data is 226561 character long, so it's not that large, but it's relatively larger than my other working testing set, which are about 10k character long.
JavaScript:
PageMethods.my_func("context", success);
function success(result, userContext, methodName) {
[code]....
Is there anything I can change to increase WebMethod returned string length limit? Is there even a length limit or is it some other problem I could not see?
does it reload the entire page or does it have the intelligence to only send the necessary js to update the needed parts of the page that have changed?
if it does the latter that would be a god send, however im probably being dreamful. it probably returns the entire view without any regard, right?
edit: answer seems to be no, everything is returned.
edit added: do you think it would be difficult to write a framework where mvc compares last html it output to the current html we want to output, and instead of sending the entire html, figure out what has changed and generate js code that will do the updating as compared to previous html? (presuming nothing was manually changed on the client using js)... maybe an idea for a codeplex project? or maybe something like this exists?
I read alot about this on this forum, but I cant make it work.I want to use the ajax function on my asp.net web application
[Code]...
I have an ASP.NET application with a button that executes VB.NET on the server when clicked. Specs have changed, I've added a menu of sorts which is to replace the VB button. With some from S.O., I've managed to manipulate some javascript which does a postback and executes the button's code. I figured I could just make the button invisible and still be able to call it's on_click event from js. How wrong I was!
So now, somehow I'm supposed to call a VB sub from either javascript or (boss says) ajax. I have no idea how to do this. Could anyone give me a good direction as to how I can call a VB.NET subroutine from ajax on the client? Or javascript?
Searched a bit, couldn't find a clear answer.I have a big HTML table with numbers in it. I have a selector (radiobuttonlist) that the user can click if he wants to see the table in $ or days.Right now it works perfectly but the page refreshes because i'm calling a code-behind function (RefreshTable) everytime the user clicks on one of the two radiobutton since it changes the format and needs new calculation done by the RefreshTable function
. Is there any ways I can call that function without refreshing the page using ajax or something ?
The function has only one parameter : ProjectID, it's coded in VB.NET and we're using ASP.NET
Here's the table code from the .ASPX page, it's only the shell, everything is added thru a VB.NET method called when the RadioButton is changed (autopostback=true), so we check wich one is selected and execute the VB.NET method to populate the table. (code of the function is below)
[Code]...
[URL] Response when viewing URL: {"Status":"OK","Message":"0","Info":"(none)"} Using JQuery how do I pull from that? I get how you do POST and sending but little lost has to how to pull from that. Do I use GET? Am I doing something like $.get("URL HERE"...?
View 3 RepliesI am working on a frontend. I use Process.Start("file.exe", "arguments") to start the process.
Is there a simple way to get output by the process returned in a textbox?
The exe which is launched is a console program.
I have an ASP.NET MVC controller action with the following VB.NET signature:
[Code]...
If I'm trying to send an Ajax POST in jQuery to the ClosestCities action, what should my request look like? When I use the following code to POST to this action, in the debugger window of VS, position.longitiude and position.latitude are equal to 0.0 (0D):
[Code]...
I have a very simple stored procedure built in SQL Server 2008 that looks like this.
CREATE PROCEDURE [dbo].[usp_delBannedIP]
-- Set Required Parameters
@RowID int,
[code].....
I have problem setting up the mock to fail if the user has attempted to log in three time with failure. My code looks like this[code]...
View 2 RepliesThe scenario is that an ASP.NET webforms page will call a web service in an async manner to make about 8 web service calls to various providers for data. I would like to run them in parallel to speed things up. I also need to wait for them all to come back before moving on.
View 1 RepliesI had the idea of making a program that would take a list of URLs, display each one, and then let me save the web pages as they came up. So I wrote the following few lines of code. The interesting thing is that they don't work: (vb express 2010)
Imports
System.IO
Public
[code]....
We're working on a big ASP.NETVB.NET website project. I need to populate three dropdownlists. To last two are independent of the previous ones. The population data comes from an SQL Server. I'd have no problem doing this with code-behind with post back but we don't want any PostBacks so I started to develop this in AjaxjQuery.
[Code]...
after finally fixing many problems with my program, and finally fixing it so it could run in a backgroundworker... I started to learn INVOKE but a small problem with this. Im not sure.. do I have to INVOKE for EVERY component of a FORM I want to modify? or is there a way to group all the invokes into a single big one?or a groupbox could work?
If progreso1.InvokeRequired Then
progreso1.Invoke(New updateprogressbardelegate(AddressOf updateprogressbar), New Object() {Me.ProgressBar1, valorprogreso})
[code]....
I have a VB2008 music-player program with a listview that acts as a playlist. I created Windows Shell Context Menu entries in the registry for MP3 etc files, so if I right-click such a file in Windows Explorer it gives the option: Play in MyProg. If multiple files are selected in Windows Explorer and sent to be played in MyProg, the first one must be sent to the music player (part of same prog) and the others must be added to the playlist (listview). For this reason I must know whether a commandline call is just a single one or whether other context menu calls will follow.
[Code]...
I'm creating an application where I want to save a webpage to a file. The webpage has a Javascript function written into it. See below
<html>
<head>
<title>Javascript</title>
[Code]....
There is a reason for this. I will be required to retrieve data from a Javascript API. The API can only display data on the webpage and somehow I have to retrieve it from the webpage.
I'm using Visual Studio 2008 but with .Net Framework 2.0. Haven't tried out 3.0 or 3.5.
2. FunctionLayer -deals with Common Operations which get results from DataLayer and return results to Forms.3. User - deals with User. (For Reusing the User Class in other projects, i have separated this class)Here in Class2 - I have an instance of Class1( ie., DataLayer) for DB Operations.imilarly in Class3- I have an instance of Class1( ie., DataLayer) for DB Operations.Now in my form, If i create Instance of Class2. But When I need user functionality in this form, I have to create an instance of Class3 to this form.
View 6 RepliesI am venturing into WPF - first time in (VB).NET - and trying to re-create a project I started in MS Access VBA. It basically scrapes a series of pages within a web application. As you may have surmised I am having trouble with the LoadCompleted event.I have searched and found some information on it, but the "flow" of the code only lends itself to waiting for one page to load.url...All of the code execution is run in the DocumentLoaded event which works fine when you just need to navigate to one page and execute code. But I need to perform a series of these cycles for my application. How can I reliably wait for the document to fully load while still keeping the code execution in the same Sub AND not locking the UI thread? [code]That's it. Repeat for n times. my interactions with each DOM are significantly different.
View 2 RepliesWhat the Win32 API is? I have looked around but no where really outlines what it is. Is it basically a set of procedures, outlined by Microsoft for programmers in order to get services from the operating system? In essence is it the equivalent to making system calls abd and library calls in UNIX? And yes I now Windows makes library calls too.
View 2 RepliesI wrote a page Page method in my aspx page. in web service method I need to call FindControl method return textbox and get text box value. But my findControl will take MasterPage object to iterate.
see my code
<script type = "text/javascript">
function ShowCurrentDateTime() {
$.ajax({
[Code]....
How to pass Master Page object or Page to Page method?. So I can use in Sared method.
Is there any way I can access Textbox value directly in Page method? I need access couple of controls in Page Method.
I have been using DBTransaction for my current projects that access a single database. However, I read some documentation on TransactionScope and was wondering in which scenario would using TransactionScope be better? Or should I be replacing DbTransaction calls with calls to TransactionScope?
View 2 Replies