I'm trying to add items to the listview, but ever time i add a icon the Listview freezeslinks a white color for a millisecond.A millisecond is not a lot, but when you add 5 items per second to the listview then all you see is a white shade blinking. I tried slowing the thread down so it takes longer for it add the items still no luck.
View 5 RepliesI have a software under contruction for a small firm. And it requires email functionality. That is, whenever the users in the main database reaches the payment date, an email will be send to that user as a reminder.Or, in certain period, the admin needs to send a notification mail to all the users in the main database.
So, how can I incorporate that facility in my main app ?My present idea is to create a separate app for send the mails. That is, when the admin compose the mail and selects a bunch of users (as recipients) from the database, all the message will be saved to another database (for mailing application) and will start the mailing app. This mailing app will check it's database for any pending emails to be sent, and if there exists any pending mails, it will start sending one by one. After sending each mail, it will remove that from the database.
What's your idea ? Does it sounds ok to you I don't want the user of my main app to know that there exist another program, running in background, sending emails.
i have the following code
Dim url1 As String
url1 = "www.google.com" & GWP_NodeList.Item(i).SelectSingleNode("icon").Attributes("data").InnerText
Dim webClient As New System.Net.WebClient
Dim bytes() As Byte = webClient.DownloadData(Url)
[code]....
I get this error:
Could not find a part of the path 'D:UsersGlenn RuysschaertDocumentsVisual Studio 2008ProjectsUITestUITestinx86Debugwww.google.comigimagesweathersunny.gif'.
How on earth did it all of a sudden add the startuppath to my url?
Am devloping an application with multiple forms, which reside on top of a main form. i.e the main application window. The 'child' forms do not need to be linked in any way as they do not pass information to the parent form, as all the parent form does is act as main window.Now I would like to know what is the correct way for the 'main window' form acting as a container for the other forms? So that all the smaller secondary forms stay focused on top of the main application form, that when the main window is minimized, so these forms should do also etc..
I have read other posts and they mention, leaving all the forms standard i.e. IsMdiContainer = False and then using form.showDialog() to call the secondary forms. This did not work for me as what happens is that as soon as I give focus to the main app form, the secondary form disappears underneath.I tired making the main app form IsMdiContainer = True and when it loads calling:
frmMemberForm.MdiParent = Me
Now this works, because I can click off the form and minimize the app etc and the frmMemberForm doesn't disappear. However if i close the MemberForm and reopen it, it looses this property and once again when it looses focus, it will disappear.
Is there any possibility to make this true?I mean we can't use { } as a normal text in String.Format()
View 4 RepliesI did a project (College Management) in vb.net 2008 which contains 13 forms in it. I designed the different functions in a different normal form, i.e. frmAdmission, frmSearch etc. When the project run's the main form is loaded. When user chooses a particular function say 'frmSearch' then the main form is unloaded and the form frmSearch is loaded. Now my lecturer told me to use MDI forms instead of normal forms because, normal forms takes larger memory than the MDI forms.
View 5 RepliesI have a problem with an MD5-hash algorythm that's acting very oddly.Here's the
vbcode
Imports System.Security.Cryptography
Imports System.Text
[code].....
I stumbled upon something i don't quite see the logic of. Let's ork with following piece of code:
For Each ds As DerivedScale In List
If ds.ScaleID = scaleId Then
ds.ScaleID = ds.ScaleID + scaleStep
[Code].....
This piece is written for 2 records to change place and change the sequence number (scaleid). The arrow indicates where the issue occurs. The item "ds" is replaced by the object 1 indexnumber higher/lower. This does however not effect that object in the List. So when i check, item ds isn't set.
However, when i look at ds.ScaleId = ds.ScaleID + scaleStep, this is reflected in the List.
So what I am wondering is: is "ds" acting like a local variable here, and can i only make changes to it's properties?
I have a bit of a strange problem with MySQL that I've never seen before. Basically, I need to enter the same entry into a table x number of times. The Primary Key is auto increment so there shouldn't be any duplicate value problems. However, it takes the last few columns and seems to clump them all into one value and is using that as a key. The error I'm getting back is:Duplicate entry '80-0--2011-06-16-0-1' for key 'idx_mtind you, there is no field called idx_mt. The primary key field is called just ID. And that 80-0--2011-06-16-0-1 is the last 8 columns or so (which you can see the names of in the cols variable) concatenated, which they obviously shouldn't be doing. Also, the first time the loop runs through, the entry goes through, but the later ones conflict with it. I confirmed that this is the problem by changing one of the last 8 columns to a value based on a loop, and that went through with no problems.
Dim cols As String = ""
Dim msi As System.Globalization.DateTimeFormatInfo = New System.Globalization.DateTimeFormatInfo()
[code]...
I have an application that uses bound controls on the form. I have a dataset associated with my form and have a custom query written for one of my tables that is supposed to get two fields in the database and order them by their ID in descending order. However, when I run the program, the bound controls do not contain the last record, but the first.
View 8 Repliespart 2 of 2: i was just wondering, is anyone else experiencing problems with their webbrowser, as in not displaying the right side links properly, and the reply, always sends you to an off screen, with no edit options, or being able to insert code in. this is currently happening in my firefox browser, although the i.e.8 has no problems... just want to know, to see if maybe it is a bug with my firefox, or they are again, updating the forum.
[Code]...
Will the elements in myList always be visited in the same order with a For Each loop (assuming I don't alter the list)?
Dim myList As New List(Of MyElement)
....
For Each myElem As MyElement In myList
' yadda yadda yadda
Next
I'm having some difficulties chopping up a word document. I think the problem may be that it's 900+ pages, but I'm not completely sure.The separate documents within the document file are separated by x of 100 documents. I'm trying to split at the "of 100 documents", however when I try to split the string that I put this word document's contents into, it will only split with the first letter I give. So, when I try to split it by "of 100 documents", it will only split by "o".
View 1 RepliesI created a simple custom controlled Panel for double buffering. When I use the control in my toolbox it works just fine, but when I attempt to add controls inside the panel those controls aren't staying when I move the panel around. My custom panel isn't acting as the controls' parent. I verified this by looking in the designer code.
I tested a standard panel on the same form and it works perfectly normal - as I drag the parent Panel the interior controls move along with it. It is only my custom Panel which doesn't seem to detect when another control is placed within it.
Here is my constructor
Public Class DBPanel
Inherits System.Windows.Forms.PictureBox
Public Sub New()
[Code].....
I have a vb-2008 program that contains a (listview) control.
View = details
AllowColumnReorder = true
Lets say the table has 3 columns (a,b,c) and 1 row of data.
a b c
1 2 3
I want the user to be able to re-arrange the columns (by dragging the column headers) before printing the contents of the table.
c a b
3 1 2
Statements like:
.. ListViewX.Columns(2).Text
.. ListViewX.Columns.Item(2).Text
.. ListViewX.Items(0).SubItems(2).ToString
Give the column-name (c) and cell-contents (3) of the origional table .. not the (3rd) column (b) of the re-arranged table.
How can i get the column-name and cell-contents of the (3rd) column of the re-arranged table?
Do I really have to go through all this just to find out what item has been selected in a ListView?
[Code]...
Isn't there something fundamental like this? Is absolutely everything in VB.NET buried beneath a colossal heap of bureaucracy?
i am developing a point of sales system. currently i have my product code scanned and displayed in a listview. lets say that i have 5 product codes displayed in my first listview. By clicking on a button, how can i use these codes to call upon the details (prices, product name, etc.) of the corresponding codes and display in another listview?
i am using Visual Basic 2008 and MsAccess as my database. who have the idea on solving my question. (As my last thread has not been answered at all..
I want ListView instead of CheckedListBox files in checkedListBox is being updated via ListBox1 How can I add the size of file too in listview
[Code]....
i was wondering if it possible to have a condition where lets say you have a column in the datatable called amount and a textbox acting as the filter called say maxamount to set it so the rowfilter when filtering the table will sum the number in the amount column until the number in maxamount is met, then stop and only return the rows where the total sum of the amount column is equal or less than the maxamount value, so i guess if the next row takes us over the maxamount it discards this row and returns the rows previous to it. is this possible using datagridview rowfilter or should i be loooking elsewhere to achieve this?
View 4 RepliesCan we use our normal vb.net applications over the net?
I mean if I try to make my windows based application, that registers students to School record using Access Database,
will it work on the internet in the same way as it does on my local computer?
I have a listview control. it has an imagelist attached to it with two images in it. I have entered items into my listview, and they are using the first image in my imagelist.... GREAT! Now, there is a variable I have that will tell me which index in the listview is currently active, noting to do with what I select that could be at another index it's just what's being processed by the program at the time in some task.
Create a function that will change the images of all my listview items by looping through them. If the index variable is set to 2, I want the 3rd item in my list view set to use the 2nd image in my imagelist. The rest of the items in my listview need to be set to the first image in the imagelist.
i want to use some api's in my software . Other than api there is no other way .
I want to learn more about win32 api . Can some one tell me
And what is the difference between Native api and normal api
I get a number of something like 4.44444444444444E+24. How do I do to convert it to it normal form as 4444444444444444444444444. (I have to compare these to return true value if it's equal )
View 1 RepliesI am working on a application in which I have to show different forms stacked one upon the other. Due to some restrictions, I cannot use MDI and also it has a lot of issues. I am able to get what I want but with a problem. The forms will be stacked, but they do not remain in the parent form. Lets take it by an example. The structure goes like this.
1) There is a form A (My parent form)
2) a second form "B" opens on a button click event on Form "A". (Note: B.ShowInTaskBar=False)
3) again, a third form "C" opens on a button click event on Form "B". (Note: C.ShowInTaskBar=False)
Now, when I minimize form A, it gets minimized but the Form B and C, remains as it is. I want them to get minimized at the same time. I want form B and C should remain as a child form of form A.
My Form is TRANSPARENT and i dont know how to make it normal again.
View 2 RepliesWhat is in the English language the opposite of side?
First let me excuse myself not been able to find a relevant newsgroup for this. I am missing 'other general development'.
I am programming a machine that checks the content of a little bag with pills in it. They can be either on a 'normal' position, or they can be in there on laying on their side. How could I translate the 'normal' position? I've thought of 'flat', or (on their) 'back'.
i wanna make Leetspeak translator like this: http:[url].....And also that it ca be possible to translate leetspeak to normal letters.2 textboxes and 1 button.
View 3 RepliesI Want to know which one is preferred while coding to use Static Methods or normal instances, I prefer to use static if they where few but if there was many of them I start to get some doubts
[code]...
if the EmployeeManager Has Many methods (selects deletes updates) is it ok to make them all static.and if it was Normal instance. wouldn't be a drawback if the object is initiated every time specially if GetAllEmployees() is heavily used.What is the better approach to use?
I am need of creating a windows executable that contains a compression of certain other binary files, (executables etc)
It is a basic form with a button, on press of the button, it has to decompress certain binary files( some other executables too) into a certain path, the decompression happens based on some specific conditions and not always., This is the reason I could not use WinZIP to create the EXE.
I need a code to check the pagerank of a website in vb.net url...and it does work, but not all the time it gives much 0/10 while they are 3/10 or 4/10 or so.does someone have a normal vb.net code to calculate the pagerank??
View 1 Replies