XMLDocument Load Taking Too Long On Certain Machines
Jun 3, 2010I have developped a piece of software which needs to load in an XML file stored locally, I do this using the following [code]...
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PrintDocument Taking Way Too Long?
Dec 13, 2009The problem I'm facing is that PrintForm has a shoddy quality while getting the printouts and PrintDocument takes way too long to get on receipt printed (Almost 5-10 Seconds!)I'm either looking for an alternative for PrintDocument or somehow make the PrintDocument run faster
Dim
printFont As
New
[code].....
Long A Group Of Method's Are Taking To Complete?
Jun 10, 2011What tools can be suggested to identify how long a group of method's are taking to complete? I have a large math calculation engine that calls multiple classes. I need to track down which ones are the highest cost of time.
View 3 RepliesFront End - Record Updation Taking Long Time
Jul 6, 2009I have a backend database in MS access, which is updated using excel as front end. Due to network issues the record updation takes lot of time. Would it be faster if i use VB.net as the front end.
View 1 RepliesGenerateResource / CoreResGen Suddenly Taking Almost 30 Times As Long?
Aug 8, 2010Starting a few weeks ago, compiling a project (VB.NET, .NET 2.0, VS 2010) has taken several times as long as before. In Task Manager, I noticed ResXtoResources.exe taking lots of CPU for a while. I've finally been able to get some data on this using MSBuild's 'Diagnostic' output setting, and comparing that output to what I see in a branch from a few months back. Most striking are the final lines, which give timings. Before:
Target Performance Summary:
[..]
1395 ms CoreResGen 1 calls
1930 ms CompileLicxFiles 1 calls
2135 ms GenerateApplicationManifest 1 calls
2844 ms CoreCompile 1 calls[code].....
Both projects were compiled on the same system with the same settings. We've made numerous changes, to be sure, but nothing to the order of magnitude that would justify such a change in timings (and only for this one task!). I assume resource generation is getting stuck on something — a circular reference, a missing one, etc. I have been unable, however, to find anything useful on how to trace such a problem down to what I assume is just a single resource file.Short of looking through thousands of checkins or temporarily removing some forms (and thus, their resource files) from the project, is there anything else I can do to figure out the issue? I can't seem to find individual per-resource file timings.
Findings so far:I've created a new, empty project with all the same .resx files in place.The issue is not reproducible in .NET 4.0: compiling the exact same test project takes less than a second.The issue is reproducible in .NET 2.0 as soon as I also add one of the forms from the original project; apparently, it will otherwise not compile the resources "properly".Removing individual .resx files will reduce the timings 'proportionally'; that is: I have unfortunately not found a single file that is the culprit.
Inline Aray Initialization Is Taking To Long Time?
Jul 6, 2009I am on one asignment of convering C# to VB.net and stuck up with this problem.C# application has one class having inline two dimensional array initialized with size 168X168. I converted same class to Vb.net. Now whenever I create instance of my this VB.net class, It take almost 3 minute.
To figure out problem, I put break point on sub new() (first line of my constructor), and behaviour is realy strange because it takes 3 minutes to reach at first point of my constructor.Whenever I comment out my large size array initialization code, It works perfect. Now please note that same code is working fine in C#. It is not taking even few millisecond to initialize that class.
Taking To Long To Display Excel Spreadsheet On Datagrid?
Jan 11, 2010I have the following in my little program:A form containing a button and a combo box where each item is a "year" ex. 2009,2010,2011...
When the user selects an item from the combo box, and clicks a button, an excel spreadsheet is displayed in a datagrid.
- Depending on the item selected, a different file is opened.
Now, my problem is as follows. Every time the user press the button, it takes like 50 seconds to open the file and display it in the datagrid.
- The file range is from A1 to J393 (a lot of cells)
The procedure reads every cell from A1 to J393 and puts it in a multidimensional array. Therefore, I would like to know if there is a way to speed up this process.Another thing, lets say I selected year=2009 and press the button.I wait 50 seconds approx.Displays the spreadsheet (corresponding to the year 2009) on the datagrid.
Then
I select year=2010 and press the button.
Wait another 50 seconds approx.
Displays the spreadsheet (corresponding to the year 2010) on the datagrid.
AXWindowsMediaPlayer Taking A Long Time To Release File On Close
Aug 29, 2011I am writing an application for managing mp3 files. I use AXWindowsMediaPlayer1 for playing files and UltraID3 for reading and writing ID3 tags. Every time the user selects to switch to next song, the ID3 tags of the current file need to be updated. My problem is with Media Player taking a long time to release a file for access after doing a "close". Currently I need to add a 6 seconds delay between the "Close" method of the media player and the ID3 tag "Write", otherwise I get the error saying that the file is currently in use. Anything less than 6 seconds does not work...
I attached a short version of my application which focuses on the issue.
Call The XmlDocument.Load Method Asynchronously?
Aug 31, 2011I have working code to read an RSS feed that uses:
Dim doc As New XmlDocument
doc.Load("http://...")
Dim channel As XmlElement = doc("rss")("channel")
Dim items As XmlNodeList = channel.GetElementsByTagName("item")
Unfortunately the doc.Load call causes the rest of the program to become unresponsive until it finishes.What's the best way to perform the load asynchronously and have a callback function to process the data?Edit: Here's the code I've tried using WebClient - the Load method is still lagging:
Private Sub checkResults()
'request rss feed
Dim w As New System.Net.WebClient
[code]....
The rssReadCallback method is executed fairly quickly after calling checkResults, but then the UI freezes during the Load method.
XmlDocument.Load: Unexpected End Of File Has Occurred?
Jun 21, 2010I'm attempting to load an xml document from an XML column in MSSQL 2008, into an XmlDocument (see code below).
Sometimes the code will break at the xdoc.Load(xr) line with the error "Unexpected end of file and occurred". After breaking, the XmlReader has a value of "None".
While researching the problem, I saw posts that referred to a 4Kb limit on StreamReaders and figured this may be related somehow. So I cut down the size of my document (to around 4Kb) and everything worked fine.
On average, the XML documents I'm importing from the database are 20Kb.
how to get a 'large' amounts of XML from the database into my XmlDocument?
Dim xr As XmlReader = ExportAdapter.GetEditedCheckXML(chkId)
Dim xdoc As New XmlDocument
xdoc.Load(xr)
[Code].....
XML Exception When Using Xmltextreader To Read Webresponse And Then XmlDocument.load?
May 5, 2011I am currently facing an issue when i get response from webservice, after reading response in response stream i want to load this response stream using xmltextreader. but when Load(xmlTextreaderObj) is called, it raises an exception displaying that "Root Element is Missing". Here is code which am using.
Dim wResp As HttpWebResponse = CType(wReq.GetResponse(), HttpWebResponse)
Dim respStream As StreamReader = New StreamReader(wResp.GetResponseStream())
Dim Resp As String = respStream.ReadToEnd()[code]....
File I/O And Registry :: File Founder - Taking Long Time?
Apr 26, 2010I'm writing a program to search files.The result is saved in a text file.Everything it's working fine, but when I say to look for files/folders in C:* the process takes long time and in task manager it's displayed as "Not Responding", this is not true because I see that CPU and RAM are working with this process.I've disabled in DEBUG OPTIONS the line "ContextSwitchDeadlock" just to prevent the error message "this operation require long time ... bla bla bla".Is there any way to display a progress bar or something like that that shows the program is running and it isn't "hang"?Here's my code (in red the line where the program hangs):
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim cartella, scelta, cosa As String
[code]....
I think that it's like when you type in the command prompt "tree" it doesn't hang... I know... it's not the same thing but...I'm using Visual Basic 2008 Express?
BG Image - Taking Too Much Time To Load Application
Apr 17, 2010I am using vb.net in which I have put the background image to every form. The image size is 1024X768. When I open the form it is taking too much time to open. and screen is fluctuate.
View 1 RepliesConnect Client Machines With Sql Server Machines?
Dec 7, 2011How to connect client machines with sql server machines ?Vb.Net as front end.
View 8 RepliesVS 2008 Published App Takes A Long Time To Load?
Feb 10, 2010Whenever I publish my app, or when I run the exe from teh debug folder it takes a couple of seconds before the splash screen shows.However, when I run it from within VB (by pressing the "play" button) the splash screen shows immediately.
What could be the cause of this?
C# - License.licx File And Licensed/Unlicensed Machines - Error 1 'Could Not Load File Or Assembly
Dec 1, 2011In a VS2010 solution I have a license.licx file that contains:
DataDynamics.ActiveReports.ActiveReport, ActiveReports6, Version=6.1.2814.0, Culture=neutral, PublicKeyToken=cc4967777c49a3ff
DataDynamics.ActiveReports.Web.WebViewer, ActiveReports.Web, Version=6.1.2814.0, Culture=neutral, PublicKeyToken=cc4967777c49a3ff
DataDynamics.ActiveReports.Export.Pdf.PdfExport, ActiveReports.PdfExport, Version=6.1.2814.0, Culture=neutral,
[code]....
If I build the solution on a machine that HAS a license for ActiveReport then everything is fine. If I build the solution on a machine that DOESN'T have a license for ActiveReport I get:
Error 1 'Could not load file or assembly 'ActiveReports6,
Version=6.1.2814.0, Culture=neutral, PublicKeyToken=cc4967777c49a3ff'
or one of its dependencies. Operation is not supported. (Exception
from HRESULT: 0x80131515)' LC
On the machine that DOESN'T have a license for ActiveReport if I remove the above lines from the license.licx file then everything builds fine. I always thought that if the license couldn't be found then the unlicensed version will be used but it wouldn't kill the build. How do I get this solution to build on any machine whether it has a license or doesn't?
Vb6 Migration - .net Taking Too Much Time To Load User Control Containing Label Control Array?
Dec 22, 2011I am upgrading user control from vb6 to vb.net.In the vb6 application I am loading 3000 labels using a label control array.In vb.net I am doing same but it's taking too much time to load.In vb6 it's taking 1-2 seconds, but in vb.net it's taking 30-40 seconds for same work. Why does it take too much time in vb.net for same work?Code is given below, here Led is the label control array.
For l = 1 To 3000
Led.Load(ledCounter)
ColLed.Add(Led(ledCounter))
[code]....
VS 2008 Way Of Coding In Stead Of Writting Long Long Paragraphs
Sep 18, 2011Is there a easer way of coding in stead of wrighting long long paragraphs like this in one line [code]All of this is on one line and i got lots of info to put down.."The game will begin on your 16th birthday with your mother waking you up. Today you are to go to the castle for the first time. Leave your bed and open your dresser for a Strength Seed. "
View 2 RepliesPrivate Declare Function BlockInput Lib "user32" (ByVal FBlock As Long) As Long?
Dec 26, 2009In Visual Studio 2008 I am using :Private Declare Function BlockInput Lib "user32" (ByVal fBlock As Long) As Long To stop input from occuring during a search-replace operation.
BlockInput(True) ' do not allow input during search and destroy
Dim cursorIcon As Cursor
cursorIcon = Cursor
Cursor.Current = Cursors.WaitCursor
Then setting it to false at the end of the operation. It did not work, so I thought maybe it was because I was calling it from a child window, so I created a function in the mainwindow, and ran it like this:
FrmMain.BlockFrmMainInput()With these functions is the Main window:
[Code]...
It did not solve the problem. I thought maybe it was because I was running under the debugger, so I tried compiling and running it debugger-free, but that did not do any better. I am still getting input when I double-click the mouse on either form.
Write XML Using XmlDocument?
Mar 31, 2010I've reached a point where it's time to learn how to Read/Write XML files properly and I'm really confused to how we're supposed to do this. I've been reading up on using the XmlDocument, but all I'm finding is how to use it to read xml files. Right now I need to Write them, later I'll code the reading of them.
The data for the XML file comes from a couple of tables in a database too, I've got a Master/Child table (actually there's 5 child tables). I've got the data coming into DataTables and I've got the loops set up already, I'm just stuck to how do I take the Master table's row and store that data as an XmlNode then loop each of the 5 child DataTable's and add each row as a child node to the master's node.
Xml - How To Remove All In An XmlDocument
May 29, 2012and other non-visible characters such as whitespace in XmlDocument?I tried PreserveWhiteSpace = False and IgnoreWhiteSpace = True for XmlReaderSettings, but those didn't work.
View 1 Replies.net - Selecting Nodes From XMLDocument Using Asp.net
Jan 31, 2012I have following xml:
[Code]....
and I need to pick node from Id 25 to id 75. It is a portion of XML. Original XML is very long. How to do it without XPath? Dim nodeList As XmlNodeList = xmlDoc.SelectNodes("//Node[@id >" & 25 & " and @id <" & 75 & "]") Dim sb As StringBuilder = New StringBuilder For Each childNode As XmlNode In nodeList sb.Append(childNode.InnerText) Next but it is not working ...
How To Use XmlDocument.GetElementById Method
Jan 8, 2010How can i use XmlDocument.GetElementById method? It is always return Nothing
Code:
Private mXmlDoc As XmlDocument
Public Sub Read(ByVal strFileName As String)
[code].....
Specifying System.xml.xmldocument Codepage
Dec 13, 2010I have a really simple example that reproduces an error that I'm seeing.
Module Module1
Sub Main()
Dim TransDoc As New System.Xml.XmlDocument()
[Code].....
VS 2005 Read XML Using XmlDocument?
Apr 7, 2010This is a spin off of my other thread: Write XML using XmlDocument
Now I have it creating an xml file and everything's good, I'm working on the the reading of it now. Here's my current
Try
Dim XmlDoc As New XmlDocument
XmlDoc.Load(m_ImportOpenFile.FileName)
[Code]....
XMLDocument And Network Stream?
Jul 17, 2010I'm trying to send a XML serialized class over a network stream the send is working
Dim IP As Net.IPAddress = System.Net.IPAddress.Parse(IPAddress)
Dim IPE As New Net.IPEndPoint(IP, 10003)
Dim TCPClient As New Net.Sockets.TcpClient
[code].....
Xmldocument To Datatable Or Dataset?
Mar 16, 2009I am ably to load a XML file (via a filepath) to a datatable. See code below.However, I'd like to be able to load a in-memory XML document to a datatable.
Code: Public Function XmlToDataTable(ByRef filePath As String) As DataTable
Dim ds As New DataSet Dim dt As New DataTable ds.ReadXml(filePath) dt = ds.Tables(0).Copy()
Return dt
End Function
Asp.net - Add XML Nodes To Specific Node In XmlDocument?
Jun 19, 2012I have two XmlDocuments that both have a namespace attribute specified. Both documents have the same structure, but contain different data. I can't seem to get a specific node tree from one document added to the end of the same node tree in a second document. Here is an example of my two documents:
Document #1:
<?xml version="1.0"?>
<rootnode xmlns="http://www.mynamespace.com/Service/2012-06-18">
[code]....
I certainly know this is wrong... I've tried serveral different approaches. This particular approach adds all <Item> nodes to the destination document, but it adds them to the very bottom of the document instead of after the last <Item>. how to add a specific node tree an XmlDocument to a specific position in another document? Again, there is a namespace involved and the <Item> nodes have nested nodes/elements under each one.
NOTE: The <Id> nodes have example data to show uniqueness only. I can never count on any kind of numbering. The order of each <Item> node is totally unimportant. I'm just assuming it will be easiest to add additional <Item> nodes after the last one in the destination document.
C# - Building SOAP Message With XMLDocument
Jul 20, 2010I am having some problems building a properly formatted SOAP message using XMLDocument in VB.NET(C# answers are fine though). I am using the following code to manually create my SOAP message, what is happening is that the namespace prefix of the soap:Header and soap:Body are being stripped in the output XML:
[Code]...
C# - Xpath Expression To Loop Through Xmldocument?
Feb 19, 2012trying to parse this:
<?xml version="1.0" encoding="UTF-8"?>
<directoryresponse xmlns="https://www.sisow.nl/Sisow/REST" version="1.0.0">
<directory>[code]......
Here's my code:
XPath = "//directoryresponse/directory/issuer/issuerid"
Dim nodeList As XmlNodeList = XML.SelectNodes(XPath)
but nodelist.count=0...why?