Different Grade Book Program
Hey, Have anotehr question about a different code. On this code I keep getting 'Items' is not a member of 'GradeBook.lstGrades'. Public Class lstGrades Private Sub btnDisplay_Click(ByVal sender As...
View Articlehelp on data manipulation on grid
good day. I am still learning vb.net as I am more inclined to vb6. I have difficulty understanding how to manipulate data from vb.net grid unlike using msflexgrid on vb6. I have question on how to fill...
View Article[VB2010] Find PROMPT position
My goal is to check if in a EXTERNAL window is blinking the prompt (ready to enter letters from keyboard) and its position. Normally the external window never displays a prompt... is displayed a prompt...
View ArticleHow to optimize ListView control to work faster?
I made a program which contains a LV control as the central part of it. Program takes records from a database and store them into LV which has 10 columns. Everything was fine while I had 400-500...
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VS 2012 [RESOLVED] datagridview cell formatting - a couple of issues...
I have a couple of issues doing datagridviewcheckboxcell painting of background color and was looking for advice. My datagridview contains a few checkboxcolumns and a few textcolumns. In my...
View Article[RESOLVED] Problem validating all TextBox controls on a form in the "Save"...
After much research and trying, I can't find a simple way to validate all of my Textboxes on a form with 20 Textboxes. I turn an Errorprovider ON in each of the Validate events for each textbox if...
View ArticleVS 2013 Command text definitions for ADO to Excel
I have the functional command text "SELECT * From [Main$]" but it did not function until I added the dollar sign and I don't understand why. I would like to know more about the syntax for command...
View ArticleVS 2012 "= Nothing" vs "Is Nothing"
Hello, I'm not understanding the use of "Is Nothing". In the following code, the first "If" uses "Is Nothing" while the second one uses "= Nothing". It appears that the "= Nothing" is working properly...
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VS 2013 Help with reading from a txt file
It has been a long time for me with VB and a lot has been forgotten. I have done searching and have not really found the exact help that I have been looking for. I am just curious to know how to read a...
View ArticleVS 2010 Listview help needed
I am confused being a relatively new user to vb.net. Why my listview is not amending the value in the list? If I may, so I have a correct working of how listview displays its data from database. I have...
View ArticleNeed help playing an array of hundreds of captured images in a picturebox.
I have this screen recorder that I re-tweaked to store captured images in an array. I'm not sure if the array is storing correctly, but what I do know is that my program crashes when it tries to play...
View ArticleVS 2008 Get DATA from exampe : Reciptstableadapter by DATE from a datetimepicker
I have created a tableadapter with the data from the database. the data in the database are :ReciptID: ReciptDate: ReciptTotal: the primary key is in reciptID the date in database is mm/dd/yyyy i...
View ArticleProper syntax to convert NumericUpdown control to Double?
What is the proper syntax to convert a NumericUpDown control to a Double? For instance I have a NumericUpDown control named SS11, how do you convert this to a double? Thank you for any tips.
View ArticleVS 2010 Window won't show after minimizing to taskbar on Win 8.1
I'm having a strange problem. My windows form won't redisplay after minimizing it. When I try to redisplay the window from the taskbar all i get is a "ding" sound. It's reproducible on my Windows 8.1...
View Articlecalculating average for a 6x5 array?
Im running into trouble calculating the average of this array: How is an average calculated for this type of an array? can someone give me an example to study and tinker with please? Code: Imports...
View ArticleHow to draw gradient transparent circle in vb.net ?
Hi Every 1 :wave: I need your help with my painting application, the idea is that i can draw a small circle on picture box using the mouse down event and after drawing the required number of the small...
View ArticleVS 2010 Enabling a button when fields are filled, write to file
I would like to enable a button after all of the necessary data is entered. After all of the data is entered, it needs to write to file. I have this code: Code: Private Sub btnAccept_Handles(sender As...
View Articlelistbox issue
I've got two listboxes within my vb form, listbox1 and listbox2, and a textbox named Textbox :P Both listboxes get their values from an xml file, and all values in listbox1 correspondent with the...
View ArticleVS 2010 SQL Tables in to a Datagridview
I want to load an SQL Database table into a Datagridview but because the table is selected from a combobox I cannot preset the datagridview. Is there an easy way of doing this or do I need to work out...
View ArticleGet part of a string
Hi There, So say I'd have this in TextBox1: Code: <HMTL> <HEAD> <TITLE>webpage1</TITLE> </HEAD> <BODY BGCOLOR="FFFFFf" LINK="006666" ALINK="8B4513" VLINK="006666">...
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