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I had started developing VB6 applications starting from 2003 for Mathematical problems, statistical problems, Financial modules,etc., using my intel Pentium II, 166MHz, 32MB RAM computer. Later Migrated to VS2005 and VS2008 during my engineering ending…
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Sub filllist() strsql = "select * from tabletest" ListView1.Items.Clear() sqlcmd.CommandText = strsql sqlcmd.Connection = sqlconn sqldr = sqlcmd.ExecuteReader() [B] sqlda.SelectCommand = sqlcmd -- the error is pointing here and it say NullReferenceException was handled then Object reference not set to an instance of an object. How do i solve this? … |
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Hi I have a issue that my application in currenlty doing number validation with an issue. [-d0-9] and checking that the lenth is 10 characters, all that is working as it should. The issue I'm having is: '0000000000', '1111111111',....,'9999999999' that passes my checking but is there a Regular Expression to … |
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[B]How To Find determinant of a metrix using c#???[/B] How to find determinant of a metrix using C #.Please give me the complete coding in C# to find determinant of a metrix.i want to do this problem in console application..expecting reply thank you |
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I've been away from my C# programming course now for months and am very rusty to say the least. My assignment calls for the creation of a MDI text editor project. I am currently having trouble in coding such that the child form containing a rich text box is recognized … |
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I have what would seem to be a simple problem, but I can't get it. To save screen space, I'm trying to create a simple autohide window using a panel control, which will slide open and closed on the MouseEnter and MouseLeave events. For example, here's what I have on … |
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Hi friends...can any one suggest me a solution for accessing the Excel work books using the Microsoft Excel API in VB.net?I have to parse through the excel work sheets and find the position of a particular column in the sheet... |
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I've seen threads on this topic but it didnt shed any light on my case so here it goes I am trying to rename a file as such; [CODE]Dim loc_path = "D:\Test" Dim filenames() As String = Directory.GetFiles(loc_path, "*.mp3") For i = 0 To ListBox1.Items.Count - 1 filepath = Path.Combine(loc_path, … |
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Hello friends!! I made a simple RPG game for my project. I used windows form application.. I set the background image of my form1 to a picture that is already a map.. I used picture box for the MainCharacter and set it to transparent and I also put transparent background … |
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Hi, My application is in VS2008 coded in vb.net.I have a table with three columns FromDate,Todate and Schedule.FromDate and ToDate will have date values whereas Schedule will have a any of these values(weekly,Monthly,Yearly) In my Form i have given some provision to the user to check the records.My requirement is … |
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Hi Iam a Graphic designer and now i want to learn VB (software development) New to vb not know anything about that and iam quick learner any Help is appreciated. from where i start to learn. which software i download vb6? or vb studio? Thanks in advance.:icon_smile: |
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I would like to know how to use module, why we need to use module and when to use module. I've tried to use module but some of my textboxes, labels and other controls didn't recognize by the module i've created. |
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We have just converted a large VB6 desktop app to VB.NET 2008. First via the VB 2005 (open project), then days of fixing errors, etc. Then opened the VB 2005 in VB 2008 so now it is a 2008 solution. The more we try to test the worse it gets. … |
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Hi, I have searched alot but can only find info on moving entire rows bound between 2 datagrids, but noting on moving single cells. I have some code below that works ok from DGV to textboxes but not from DGV1 to DGV2. [CODE] Dim i As Integer i = DataGridView1.CurrentRow.Index … |
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Hi I have a number of forms which have a common menu strip rather than copy the control onto each additional form is it possible to just call the menu from another form ? |
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I have drawn a grid in vb2008 so that each rectangle represents a 15 min period of a day. Time slots are shown by filling in the grid in different colours using the draw rectangle method. No problem so far. Now I want to discover the colour of any given … |
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i have a form and i need to use mouse scroll for moving my panel. so i need to create event ( :) ok ok im not sure ) and No matter where the selected i need to use this event when i use mousescroll :) I hope i was … |
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Please refer to the attached image [ATTACH]22297[/ATTACH] I want to create an application which provides toolbar 'button' like BatteryBar. Thanks for your help :) |
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i want to listview editable it's possible?? please help |
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Hi guys, I have the following coding and i would like to save it using save file dialog. Any idea? Thnx. [CODE] Dim numCols As Integer = dgvExp.ColumnCount Dim numRows As Integer = dgvExp.RowCount - 1 Dim strDestinationFile As String = "c:\username.txt" Dim tw As TextWriter = New StreamWriter(strDestinationFile) 'writing … |
I'm currently practicing working on mobile application using vb .net 2008. So I have these 5 forms that I link together. The form # 2 is where my quit button was positioned. I want to quit the whole application but form # 2 was the only form that is terminated … |
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Im trying to select data from a MS access database, i have done this for SQL server before with no problem, but now with a Access database i get a run time error for "No value given for one or more required parameters". Below is my code [CODE] Private Sub … |
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help please i am creating a game and i would like to record the score and name ounce the player is game over.. you can also view the records |