I'm working with Visual Studio 2008 and SQL Server Compact.My database program was working great and I have been able to get a lot of stuff done. Just a moment ago I created a simple command in my VB code and decided to check if it works.No mapping exists from DbType AnsiString to a known SqlDbType.The error occurred in the DataSet.Deisgner.vbThe part of code it focused on was:
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute()> _
Protected ReadOnly Property CommandCollection() As Global.System.Data.SqlServerCe.SqlCeCommand()
I've implemented with Visual Basic 10 an application for Net Framework 4 with functionality to send files via e-mail using System.Net.Mail. It works well except when it comes to sending an XML file whose name contains accents. In the latter case the UTF-8 name is not correct, so Widows Mail Life presents him with name consisting of a set of meaningless characters. Furthermore, the content has lost the format of lines and spaces, presented part of MIME type information in the header, so that it is unreadable XML readers. However, with a name without accents is sent successfully.[code]....
i have encountered this error Variable 'dsNewRow' is used before it has been assigned a value. A null reference exception could result at runtime when i click on the button to insert data into my ms access database.
Say we have a DataGridView on the main form. I can chose to establish its properties by code or by selecting them in the Properties panel. Is there a difference between these two techniques, a loading time penalty in any of the cases especially?
Ok, I don't even know if the is possible, but what I want to do is have a button that when pressed will add a new text box below each other each time it is pressed. So meaning, ther4e is text in one text box, then a button is pressed, a new textbox will appear below it and you can add text to that, and so on.
I was wondering if you can programme in a code to add buttons to a page, without physically putting them in.Ive got a customisable set of options, currently in a txt file 1 item per line maybe thinking of putting into a listbox, if a user adds an item i need it to add a button with that text on.
say i had a drink list, with my first 3 items of beer, cocktail, food, and theres a button prest for each one and i decided to sell wine, shandy, rout beer and so an so on, or how ever many items there are, could be 50 items or 100 items don't really fancy?
Possible Duplicate: C# Coding standard / Best practices
What VB.NET or C# coding standards are you using for your .NET applications?I was looking at hungarian notation and I don't think it is a good idea for a .NET application.
I'm creating a game similar to the tradtional space invaders in VB '08. My problem is twofold. One, when I dim a new picture box (picPrimaryLaser) it won't move. Two, I can't do anything while it's moving. The screen just turns white and flashy around that area.Here's the code.
Public Class frmMainInvasion Dim activationCheck As Boolean = False Private Sub frmMainInvasion_FormClosing(ByVal sender As Object, ByVal e As
<Visual Studio 2005. VB.NET.> Does anyone has a sample code to send an e-mail like below?
Namespace My Partial Friend Class MyApplication Private Sub MyApplication_NetworkAvailabilityChanged(ByVal sender As Object, ByVal e As Microsoft.VisualBasic.Devices.NetworkAvailableEventArgs) Handles Me.NetworkAvailabilityChanged MsgBox("Network Connection has been changed", MsgBoxStyle.Information, "Network Connectivity") "Send an error email to admin"
I'm currently extracting strings from the page source of a certain website. I'm using the start string and the length to get the string I want. However, the problem is that it contains some html codes such as href, a, li etc. Is there a way in which I can copy the text only and not the code?
I have a dataset which i'm sure that i am able to change the data held wihin it. But the datachanges don't stick when i stop running the prog and restart.
how to reboot the PC from coding with VB.Net framework 2.0 or above.i also like to set timer for rebooting process.does VB.net framework support for above process? do i need to add library or DLL file
I have a newbie question hopefully the more experienced vb heads will be able to help me with, I have a command button which works like the following [code] I was thinking would it be possible to only run 'Code 4 if the messagebox.show has not appeared for Code 1, Code 2 and Code3?
I think I have a simple program to create, but I just cannot find the syntax to complete it.Effectively, what I'm trying to do is search down a column where there are cells with numbers and cells that are blank. I want to search down the column and find where there are two or more cells that that have numbers, one after another. I want to add a row beneith the last number and then add up the total of that batch of numbers in that column were searching down. I know that I'll be using a loop to step down each cell in the column to check on the contents of the cell. Also I want the loop to go from the top of the colum to the last record since the list length will frequently change.
I Have a project to do for the class and i start to do it but i am not able to do the last part which is ( if there is no win, it should say drew) i do not know how.lp me on that and if you can give me easier way ti am using visual basic 2008 express.here is the codeode
Public Class Form1 Dim player As Integer Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
i am not sure how to use those as a regex coding so basically i need help with translating the following shown below into regex coding: -(e.g. car as regex = new regex(" ") )
I'm trying to set the size of a box without setting it in the properties dialogue box. My reason for doing so: I have text boxes stacked on top of each other. I need to alter properties of them after I place them and don't want to scroll through the list of objects (there are a lot) in order to find that specific item. Instead, I want to place them at different places in the form and then tell them where to be located, and what size they should be UPON FORM LOAD. I can't seem to locate the proper syntax in the book I am using, but from logic I have reached the following beginning of the line of code:
I've two BGW with similar coding but different approach, My second BGW shows me "NOT RESPONDING" whenever i try move/click/focus to form while the BGW is running.
I'm down to the final coding on one of my projects, when i notice that the backgroundworker behaved strange. For each time i run the backgroundworker, it repeated it self one more time, and the new time, it repeated one more time.
So, if i run the worker a third time, it would repeat it self 3 times.
First run: Runs one time Second run: runs twice Third run: run 3 times And so on.
I have been writing code fore a rather large project in the past mounts And Im beginning to think about arcitecture of the program... Its just a complete mess. I dont know how to tackle so much code..Its beginning to be impossible to debug.Basically Im doing the following prosidures. Importing several a Excel files and getting the rfrequency data from these files..Displaying them in a litview and a datatable... so you are able to edit them..Doing some calculation and exporting the results back to a xls file.Problem is now that im going to add more functionallity to the program,. What im woundering about is, is there some good unofficial guides on how to program with OOP?
