Threading - Snippet The Listview Refresh Part In The UI Is Running Synchronously
Mar 31, 2010Below i am giving a Code snippet and my question is specifier in the bottom.
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Webrequest & GUI Refresh (Threading?)
Mar 29, 2011I've got an problem with my GUI. My program has to request a couple of websites (POST) and then store the responses in local files.While requesting the sites, a GUI textbox (tbLog) should inform the user, what site actually is being requested and a "STOP" butten should enable the user to stop the whole process.Now, when I start work, the GUI freezes and the user cannot do anything until all websites are done. There is no update of tbLog.text at all and no stop button can be pressed.Me.Refresh() does not help, to.[code]
View 2 RepliesVS 2008 Refresh Part Of Code?
Jun 17, 2009I'm wondering if it's possible to refresh only a part of a code, the reason why is that I'm adding an item from Form2 to a listbox in Form1.The code in Form2 for adding is : [code]I need to press a button in Form2 to trigger the refresh in the code I posted above + it needs to do this action.[code]
View 5 RepliesReflection - Running Threading With Reflected Objects?
Sep 25, 2009Running into problems creating objects through reflection and then running them on multiple threads.
I just cannot seem to figure out what I need to here:
For Each WorkerNode As XmlNode In oRunSettings.GetWorkerValues
orkerName = WorkerNode.Attributes(SETTING_NAME_ID).Value
Dim oWorkerType As Type = Type.GetType(String.Format("Worker.{0}", sWorkerName))
Dim oWorker As Object = Activator.CreateInstance(oWorkerType)
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It is causing errors at the "AddressOf" because Object does not have a method called that. Do I need to do something with an interface?
Remoting - Threading Or Running Multiple Servers
Aug 20, 2009after my last post i dove into remoting to try to solve my performance problem in a client-server fashion.
This works very well, but i come across a big problem which i don't seem to get solved.
I made a well known singleton servicetype on the server that retrieve all customers. Whith 1 db connection this works fine. But very often customers and i use in 1 sql instance multiple databases (for each administration a separate db). so the whole purpose of a singleton object is hereby destroys as soon i connect in my class to a different db. Is there some way to overcome this for example threading or running multiple servers (for each db it's own server-application)?
VS 2008 UI Threading - Move/interact With Both Forms While The Loop Is Running ?
Oct 17, 2009When it comes to threading. I've managed to adapt one of JMcIllhinney's backgroundworker codebank examples to somewhat suit my needs, but not completely. I have a main form, and a second form that appears while I'm running through a for loop. It informs the user what is currently happening. I set up a backgroundworker that allowed me to continue to use the main form during the for loop, but the other "status" form was completely frozen, and any labels or graphics were shown as white boxes. I am struggling to figure out how to be able to move/interact with both forms while the loop is running.
View 4 RepliesHow To Refresh Listview In .net
Dec 15, 2011I have a listview wherein when I double click a student another form pops up where i edit the student info.When i click on cancel it goes back to the menu and when i click on the reports i want it to be able to refresh so that i wont have to close the program again.
View 15 RepliesRefresh / Update Text Field And Progress Bar While Running A Sub In Wpf Application
May 3, 2012I have several reports that all merge onto the same datatable. The user can click several to run and then hit the 'find records' button to run them all simultaneously. Since they each take so long, I'd like to update the user on the status bar as each of these stored procedures is called successfully. However, when I call the procedure, i only get one update at the very end listing evertyhing.
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Inherited Listview Control Could Have Built In Cross Threading Capabilities?
May 15, 2009I've not got any issues with Cross threading but I hate the amount of work involved in sorting cross threading issues out.I thought today that my inherited Listview Control could have built in cross threading capabilities; it would decrease the amount of work on the form, and tidy things up.I've got this to work (EnsureVisible method), BUT I'm a little stuck when it comes to the Items.add below is my example control.
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VS 2008 Listview Refresh?
Apr 29, 2012i have a list view that brings up data from a database, however, i want the list to be refined when i choose options from a number of combo boxes, i beleive that my sql code for this is corect as i implemented a go button to test this but i wish my code to refresh the list after an option is made,
View 1 RepliesRefresh Listview On Database Update?
Mar 15, 2012i am using a listview on my admin form to see those who are logged in. so i have a table which captures users logging in and logging out. this table data is reflected onto this listview. but i want the listview to refresh itself as soon as the user has logged out. this way the admin doesn't have to keep pressing refresh.so i want to know if there is way to refresh the listview on database update.
View 2 RepliesAuto- Refresh A Listview Using Timer For Every 5 Seconds?
Jan 31, 2012Is there anyway that i can auto refresh a listview using a timer for every 5 seconds or so?.
View 6 RepliesPossible To Update/refresh Listview On Button Click?
Jun 23, 2012Imagine you expand onto 'Sofas and armchairs' and click 'fabric sofas', it will redirect to next page on click and it will send data '10661' to the next page. Then the listview will updated with reference '10661'. After that click on another link, maybe leather sofas. The listview will re-update table with new reference '10662'
View 4 RepliesListView Update : Refresh The List Information Without Clearing First?
Nov 1, 2010My listview clears and updates every 2seconds. Is there an easy to refresh the list information without clearing first? Like taskmanager
View 2 Replies[2008] Get Part Of Background Image Covered By ListView Control?
Mar 10, 2008In my project, I have a form with a background pic that I like, but unfortunately, I also have a ListView on that form which covers most of the picture. Now, is there a way to find the part of the background image concealed by the ListView, and then display it as a background image of the ListView at decreased opacity? You know, like a vague image.Just one more thing, setting the form's transparency key to the background color of the ListView is not an option.
View 39 RepliesC# - Asynchronously Fired Event Run Synchronously On A Form?
May 17, 2010[VS 2010 Beta with .Net Framework 3.5]I've written a C# component to asynchronously monitor a socket and raise events when data is received. I set the VB form to show message boxes when the event is raised. What I've noticed is that when the component raises the event synchronously, the message box blocks the component code and locks the form until the user closes the message. When it's raised asynchronously, it neither blocks the code, nor locks the form.
What I want is a way to raise an event in such a way that it does not block the code, but is called on the same thread as the form (so that it locks the form until the user selects an option.)
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Upload And Download Files From A FTP Server Synchronously?
Dec 22, 2009Need to upload and download files to and from a FTP server Synchronously using vb.net.
View 3 RepliesVS 2010 Update Application Asynchronously Or Synchronously
Apr 6, 2010I have a program I would like to release, has 2 programs within it.1. The main program. 2. A resource utility.To release it, i'm going to package them both up using a 3rd party setup maker.Now, the question is this.I noticed in the snippets...theres 2 options.Update application synchronously or asynchronously.
First, whats the difference between the 2?Also, could I utilize that so it'll update from the clickonce, so I dont have to keep repackaging it?Also, I want all updates to be mandatory, vs optional like in clickonce default updates..where it gave the user the option to skip.Reasoning is, for cracks, hacks, etc, if it is modified, and i notice cracks, etc. it'll update and replace any cracks, etc. No "skip the update, so the hack/crack continues to work".
Forms :: Refresh Data In A Listview After Adding/deleting Or Updating A Record?
Jun 16, 2012I have designed a form which contains a listview(to see the list records) and textboxes (used for adding or updating).an already save record into table using this
cmd.Connection = con
cmd.CommandText = "INSERT INTO student_info_tbl VALUES('" & txtUserId.Text & "','" & txtFirstName.Text & "','" & txtMiddleName.Text & "','" & txtLastName.Text _
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Forms :: Listing All Running Processes In ListView (2010)
Nov 13, 2010I have created a client and server application where the clients will be run on multiple computers while the server application will be run on the host computer in the same network. So far I am able to list all the connected clients in a ListView on the server application with the IP addresses and computer names of the client computers.
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Calculate Running Total In Listview Group Extract From Database?
Dec 30, 2011I'm developing Asset Management System, it will compute for straight line depreciation, my problem is how to calculate running total on each group that I've extracted from my database.Here's a snippet for my extraction of data
Private Sub cboAType_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboAType.SelectedIndexChanged
ListView1.Items.Clear()
If Not cboAType.Text = "-" Then
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Multi Form / Part Application Need To Make Part Protable For Transfer
Feb 22, 2011im making an application in vb.net (duh!) anyway i have created and coded the whole project and it performs exactly as i want it to (i dont need code help). my problem lies with the fact that my project is 2-3 parts
1.a setup form that gathers inital data about the enviroment stores this data encrypted in a config file. after inital setup this form is not displayed again. but needs to be run on both computers
2. the second form is the real application form im in the process of turning this part in to a background service anyway this form is the one that establishes the connection between two nodes it works correctly
3. the config files
anyway here is my problem i want to make this application distributional with just one file the (.exe) and have this .exe make everything else happen. it runs the setup form and creates the first config file which it does then it needs to produce a copy of just the second form and the config file to transfer to workstation #2 that will run independtly without the whole application which i cant make happen then it needs to turn both workstations application on by only starting one on either computer and invoke the other computer to start its corrosponding app also no idea how to make this happen any ideas or suggestions as to where to look to try to find my answers.im thinking i might need to make two seperate applications (a setup app, and the running app) and include them both in a project and use the setup.exe to to package them together this is a little side project that im making for my self to use to make programming a little easier so i plan on giving it out to some fellow students to test and tell me what they think so im not really worried about ease of use or complicated procedures yet but if it turns out to work and actually be of use to anyone else i would be willing to rewrite it to distribute to the masses but for now i just want it to work for me.
Refresh Windows Form When Ever User Clicks Refresh Button?
Jun 5, 2009Lets say i label "label1" , and 2 buttons named "button1" and "btnRefresh " [code]So , when user press the button 1 , the text will change. But what should i put inside btnRefresh to reload the forms ? and display the default label.text = "Form Load" ???
View 9 RepliesForms :: Run Processes Synchronously From A Thread Or Backgroundworker Thread?
Sep 4, 2009How do run processes synchronously from a thread or backgroundworker thread? Is it even possible?We have program that allows the user to download several files from a remote server, compress them, and then email the files.It has several long running processes that must run in order. We want these to run on a separate thread so as not to make the form unresponsive. Does a way exist to do this? We attempted a rather clumsy way of approaching this problem by using background worker threads. When each thread is completed and returned back to RunWorkerCompleted, we start another background worker thread and repeat the the next process. It works somewhat but seems to take a lot of resources to run.
View 1 RepliesCompare Only Day Part And Month Part?
Jan 12, 2012my requirement is that i have to count occurrence of a certain date and between two months
suppose i have 10-jan-2012 now i have a date range 1-jan-2012 between 1-feb-2013 my requirement is that if i find 10-jan between 1-jan-2012 between 1-feb-2013 irrespective of year i know that 10-jan will come twice between 1-jan-2012 between 1-feb-2013 i am not understanding how to do this.i meanto say that i have to compare only day and month part of the date which will solve my problem
Read Text File - Read The Top Part First Then And Match The Line With Bottom Part
May 21, 2009in my text file i have two part. Called bottom and top. So i need to read the Top part first then and match the line with bottom part. Its like this
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Can Just Get This Snippet To Work
Oct 22, 2010<div style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;" id="_mcePaste"> lblText.Text = "COMMUNICATIONS: Joe Blow (BlowJoe@joeblow.com) fredflinstone@gmail.com"</div> <div style="position:
absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"
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Convert C++ Snippet To VB?
Feb 14, 2012Is there anybody here who can me convert this C++ code to VB? I have no idea where to start.
C++ typedef void (RTMP_LogCallback)(int level, const char *fmt, va_list argptr);
typedef void (*RTMP_LogSetCallback)(RTMP_LogCallback *cb);
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Converting A C# Snippet To .net?
Sep 20, 2010I am trying to confirm the following code sample : [URL] There are two classes in this snippet first is my confirmessage class
Public Class ConfirmMessage
''' <summary>
''' Initializes a new instance of the <see cref="ConfirmMessage"/> class.
''' </summary>
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How To Complete A VB Snippet In .NET
Jan 28, 2011In C# if you start a snippet you press Tab to cycle through the snippet elements, and press Enter to complete and exit the snippet.
In VB.NET you still use Tab to cycle through the snippet elements, but how do you end the snippet? Enter doesn't work and I can't figure out the correct keyboard shortcut