WebMethod Not Working When Returning Relatively Large String?
Jul 6, 2010
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].....
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Dec 9, 2011
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?
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Jul 30, 2011
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?
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Jul 12, 2011
My app is a Bible Reader. At load up I can choose Genesis Ch1 and its entirety pops into a rtb. I enter a word to search for like 'God' and hit the SEARCH button. The results I get are initially what I want. I get the verse 1:1 In the beginning God created the heaven and the earth. But then the app replaces the script with other words containing God, but all jumbled up. Here is the code I am using: Private Sub ToolStripButton2Search_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton2Search.Click Dim stSearch As String stSearch = Me.ToolStripButton2Search.Text For Each Line As String In File.ReadAllLines(Path.Combine(Application.StartupPath, "Bible VersionsKJV 1611King James Version of the Holy Bible.txt")) If Line.Contains(Me.ToolStripTextBox1.Text) Then Me.RichTextBoxViewer.Text = (Line) End If Next LineBryn Ryver
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Jan 4, 2010
I have this function correctly linked in an external .js file...
function SubmitAge(age, UpdatePanelID, HiddenAgeID) {
$get(HiddenAgeID).value = age;
__doPostBack(UpdatePanelID);
}
and am calling it like this from an onClick of an a href="#" ... html tag (tags removed, please scroll right as stackoverflow has the greatest difficulty in displaying simple content, 7th display related edit,
[Code]...
Why on earth is HiddenAgeId, clearly passed just like UpdatePanelID, is returning an "Undefined identifier Error"??? its perplexed me to the point where i have no room to move! have i missed something guys?edit: Update: turns out it works perfectly (as it should) when i load it up in FireFox, but has the resulting error in Internet Explorer, this is not a browser compatibility issue, it should also work in IE, but it doesn't!
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Feb 18, 2012
[Code]...
The loop will run about 3 times then overflow. I guess no matter what u do xor will result in Byte,Integer or Long. CDec(Key) will not work I need a way to bypass this so i can Xor large numbers.
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Oct 25, 2010
How can I calculate 2^ 3333 in vb.net it calculates up to 2^ 60 it says infinite for this calculation. Is tehre any way to work with really large numbers?
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Jun 9, 2009
I have this function correctly linked in an external .js file...
function SubmitAge(age, UpdatePanelID, HiddenAgeID) {
$get(HiddenAgeID).value = age;
__doPostBack(UpdatePanelID);
}
and am calling it like this from an onClick of an a href="#" ... html tag (tags removed, please scroll right as stackoverflow has the greatest difficulty in displaying simple content, 7th display related edit, thanks stackoverflow)
a href="#" onclick="SubmitAge(24, 'ctl00_MainContent_arFrom_upAgeRange', 'MainContent_arFrom_HiddenAge')" runat="server" 24 /a
yet, i am getting this error, and its being called on the first line of the SubmitAge function (line with $get(HiddenAgeID)... etc...)
Error:Microsoft JScript runtime error: 'null' is null or not an object
i've copied and pasted my WATCH windows in visual studio .net (vs2010 beta 2 using vb.net & c#) while the execution breaks inside teh SubmitAge .js function...
age 53 Number
UpdatePanelID "ctl00_MainContent_arTo_upAgeRange" String
HiddenAgeID Undefined identifier Error
Why on earth is HiddenAgeId, clearly passed just like UpdatePanelID, is returning an "Undefined identifier Error"???
edit: Update: turns out it works perfectly (as it should) when i load it up in FireFox, but has the resulting error in Internet Explorer, this is not a browser compatibility issue, it should also work in IE, but it doesn't!
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Jun 30, 2010
In wndProc method WM_MOUSEACTIVATE is not working. When I click on Toolstrip button m.Msg is not returning the value 33 and m.Result is not returning value 2. know how to handle the WM_MOUSEACTIVATE
[Code]...
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Apr 28, 2011
For example, to calculate this:(22 ^ 29) Mod 57Supposedly there is a way to get around overflows and do these calculations, but I can't find much online. Now, the person who said this was doing VBA in Excel and said that there was about 4 lines of code which could handle the overflow so it wouldn't happen.
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Oct 1, 2011
I use the following Rijndael code to do encryption without fail for many times. But why it can not encrypt an ISO file with 4.2 GB? In fact my computer has 16GB memory and it should not be a memory problem. I use Windows 7 Ultimate. The code is compiled as winform (.Net 4) using Visual Studio 2010 (a VB.NET project).
I have checked that the ISO file is OK and can be mounted as virtual drive and even can be burnt to DVD rom. So it is not the ISO file problem.My question: Why the following code cannot encrypt an ISO file with size of 4.2GB? Is that caused by the limitation of Windows/.NET 4 implementation?
[Code]...
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Apr 29, 2011
I am uploading a file from a C# application to an ASP.Net website, both written by me so I have access to the code.But, it is working for a text file (1KB) but not for a MOV file (77MB).
In both cases, I am using UploadProgressChanged to get the progress. The TXT file goes to 100% while the MOV file goes only till 50%. When done, I only find the TXT file saved on the server but not the MOV file.
Why is this happening? How can I get it to work?
[Code]...
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Apr 25, 2011
I recently wrote a program that collects information from the network can displays it in a DGV for the user to see. I tested this on networks where I would end up with several thousand items brought back and all worked fine, very little memory increase and once the search had finished the memory usage went back to pretty much what it was before the search, so I assume I have no major memory leaks that I should be concerned about (I'm careful to always dispose of things and clear large variables where possible).
However, a new company has now started using my application and they have several hundred thousand items that my program will find. They reported that they leave the program running its search for a few hours and most of the time it crashes with an Out Of Memory exception. Now I did have my app do some caching of certain information to avoid querying the network more than was necessary so I thought well maybe this is what is causing it but I added an option to turn that off and they say it still happens. So the only thing I can see it being is simply the amount of data that the program is finding and having to store in memory.once my application has gathered information about the items it stores them in a List(Of MyItemClass) and then when the search is complete the items are added to the DGV. So I'm thinking maybe its just the size of this List(Of MyItemClass) that is simply getting too large. Bear in mind that each instance of MyItemClass in this List can have quite a lot of information in it as it has several properties that are List(Of String) that may contain a few thousand strings in some scenarios.How do you deal with such large amounts of data without running out of memory?I'm assuming the only option I have got is to 'page' some of the data to a temporary file on disk once I get over a certain number of items in the List(Of MyItemClass)?
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Jun 27, 2012
I have built a DataTable from my database. Then I am looping through the rows and trying to access a string, however the value is being returned as each character in the string.
For Each theseRows In DisplayForm.MainTab.Rows
If theseRows.Item("Last_Name") = userLast And theseRows.Item("First_Name") = userFirst Then
[Code]....
The Trap_Code values are two or three letter strings, the returned value is each letter once at a time. The loop seems to cycle through the individual characters of the string as an array rather than display the entire value, which is what I was hoping for.
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Sep 21, 2009
G:DevelopmentDOT NET DevColony_4ImagesBattenhallAve_Plan.bmpand i want to find and return the value after the last '' for example in the string above i would want to return:BattenhallAve_Plan.bmp
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Oct 6, 2009
provide Vb6 sample code to conert this value 2450258259404013568 to Hex as &h220110E7A7BE4000. while trying from win calc it's returning correct value as required.
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Apr 24, 2009
I have a strange problem where CInt (as well as Convert.ToInt32 or even Val) return -1 for a string "500". Using Gurock's SmartInspect for logging, I've checked all values at runtime (SiAuto... logs something, I'm posting the log below the code).
[Code]...
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May 15, 2012
I have the following value 48.81, it comes as a string from the database, I need to convert it to decimal, I'm using:
Dim Seconds As Decimal = Convert.ToDecimal((Coordinate.Substring(4, 5)), CultureInfo.InvariantCulture)
I'm receiving 4881D and I need 48,81
I thought CultureInfo.InvariantCulture was going to help me with that
EDIT:The coordinate value is 675900.244.I'm "spliting" it like this:
Dim Degress As Integer = Coordinate.Substring(0, 2),
Dim Minutes As Integer = Coordinate.Substring(2, 2),
Dim Seconds As Decimal = Convert.ToDecimal((Coordinate.Substring(4, 5)), CultureInfo.InvariantCulture),
[code]....
This is the value of the coordinate in the database?
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Jun 27, 2009
I haven't programmed for some time, so I'm a little rusty Basically I'm storing HTML within a variable, and I need to count the amount of times a specific element appears e.g. <h3 class=r> for now.
I thought of using a for each loop, and passing the string above into the parentheses of the loop (using a variable ofc) however for many reason's, I don't think this has a chance of working (won't bother explaining why, as I assume you can guess). Then thought of using the .Contains method of the string class, but I simply can't think of how to use it with what I'm trying to do.
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May 2, 2012
I have created a function which essentially enables me to output anything I need from my database in a similar method to Facebook's FQL querying method as a JSON text result. I can also use the same function to get the output as a Dictionary, or List of(Dictionary) to use with VB functions for other purposes.
[Code]...
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May 5, 2011
I have a bunch of 10 digit integers that I'm passing in a URL. Something like: "4294965286", "2292964213". They will always be positive and always be 10 digits. I'd like to compress those integers into the smallest possible form that can still be used in in a URL (aka letters and numbers are perfectly fine) and then uncompress them later. I've looked at using gzipstream but it creates larger strings, not shorter.
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Oct 5, 2009
I try to remove empty space from a large string, using replace(), and using regex.
the replace method:
replace
Do While (stripped.IndexOf(Space(2)) >= 0)
stripped = stripped.Replace(Space(2), " ")
Loop
and with regex using its replace with : "/ss+/" - regular expression.
but I am still stuck with empty strings such as :
temp ""String
these string have lengths ranging between 3 and 8, so I have tried to adapt the replace function with something like this:
replace 2
Do While (stripped.IndexOf(Space(4)) >= 0)
stripped = stripped.Replace(Space(4), Space(1))
Loop
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Dec 5, 2011
This morning I was trying to work out how to update a User Control from a button on a page using jQuery.Refresh User Control with jQuery.From the info gleaned from this article: http [url]...I now have a method of loading a User Control as a page with jQuery using the converted .VB example from the codeproject.com article.However... this won't render into the browser, Firebug is giving the error "element must be contained within a form runat=server tag" So I posted this question:
re: better way to manage a dynamic select list using jQuery and User Control.Since posting that though,I have thought about it further, and believe it is the fact that the jQuery Handler class created by the codeproject code is send the browser a complete page.Given that I sadly don't really understand what that codeproject code actually does I am having trouble working out how to alter it.What I need it to do is not return a Page at all, but I guess, an HTML string, which can then be pasted directly as HTML into the div as required.how to alter that code to return an HTML string?
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Nov 22, 2010
I'm trying to create a ntier desktop application using vb.net 2008.I'm trying this [code]...
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Nov 22, 2010
I'm trying to create a ntier desktop application using vb.net 2008.[code]...
By the way what i want to achieve is how to get the data as a List(Of String),because if i put the getMenu function into the presentation layer directly,it gives me the data as i expected..Also if i return as a string instead of List(Of String),it gives me the single data.
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Nov 17, 2010
i've done some basic parsing with text files before.
Scenario is i have 4 textboxes String (which contains the string i'm wanting to parse) sub1, sub2, and sub3. so the string is ex. 500000-1-2
- is the char that is the seperator
so the aim here is to get
500000 into sub1
1 into sub2
2 into sub3
the real string i'm wanting to parse is much more complex, but i'm keeping it simple here for a jumping off point so i can figure the rest out.
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Apr 12, 2010
I have the following code to generate combinations of string for a small list and would like to adapt this for a large list of over 300 string words.Can anyone suggest how to alter this code or to use a different method
[Code]...
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Jun 6, 2012
Basically this is my problem, showing the results of a string. I am making a program for a customer and he wants to be able to extract a string or set of emails from a large group of text. In this case he wants to be able to copy a webpage and extract all the emails out of the webpage. The problem i am having is showing the results of the List(of string) Function. So far, I can copy the page, paste the content to a textbox and then i have a function that is supposed to filter out the emails and paste or Show them in a list box.
I dont know why but no matter what I do I always get this error:
Error1Value of type 'System.Collections.Generic.List(Of String)' cannot be converted to 'String'.
This happens when I try to output the return results to a textbox or list box.
Here is the code for the whole program:
Entire Program Code:
Imports System.Text.RegularExpressions
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code] .....
I have tried almost everything I could do, I am relatively new to string functions so that is my main problem.
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Mar 17, 2010
I have a text box that a bunch of information in it. Is there a way to grab specific text from a large textbox? Here is my example textbox and the text that is stored in it:
[Code]...
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May 16, 2012
I have a Client/ server application where the Server is in java and Client is in Vb.net.When i send large string from client to server am not receiving complete text.code attached below.
client-- VB.net-
Try
Dim clientSocket As New System.Net.Sockets.TcpClient()
[code].....
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