I've just debugged a program and it's revealed a rather strange problem:
If newWord.Contains(TextBox1.Text) Then
...
End If
The problem is if the User enters "" or does not enter a value into Textbox1, the If routine still runs. NewWord is always a string value of > 1 value. I'm sure this can't be right.
I am using sockets to send message between computers. I send the messages alright. What I want is when the message "x0x" comes, the client must be closed within 5 minutes. Teh admin can cancel the request by sending message "-xx" as well. The routine that checks for incoming connections and accepts messages uses WHILE TRUE...END WHILE since it must always listen. Once I get a message, I need to fire a timer control or other that fires within 5 minutes. But the program cant leave the WHILE TRUE at all. If i exit it early, the timer fires and the program does get exit. How do I fire the timer or other routine while still the WHILE TRUE routine checks for incomin connections and messages?
View 5 RepliesIs there any limit to the no. of handles assigned to an routine. Well actually my form form has about 80 controls and when ever the user press the enter key, focus must be to the next control. so can I handle all the 80 keydown events in one routine, or is there an better way.
View 3 Repliesis there any way to reference a particular code routine in VB.net external to the current loop/routine?Example:
If Var01 < 5
[Routine A]
Else
[Routine B]
End If
where Routine A and Routine B are code sequences at the end of the entire program -- such as outside of the current sub or class? The idea would be to reference an otherwise repetitive code.
I have a timer routine (basically just a timing loop) that moves shapes around the screen. The problem is that it isn't in sync with Windows (Vista). If a Windows background program runs (like an antivirus) the screen goes gray. The timing routine still runs but the display is shut off. Only when the shapes are done moving does the screen return to normal (but I didn't actually see the shapes move). Another good example of my issue is when I finish debugging and press the Start button, again I don't see the shapes move, I just see a grayed out screen with the cursor in "busy" mode.
All the other VB.NET programming I've done doesn't assume so much control as this timing loop. I've never had to worry about coordinating a routine with other windows functions. What's the trick to getting this stuff to work together smoothly?
I would like to know if there is a way to see how long a program runs. I have one that takes a very long time to run, which is not the problem. I start it and go to bed or leave for the day. When I come back it has finished. I do know it takes hours. Is there a way to find out how long it does take to run give or take a couple of minutes?
View 3 RepliesI have a sub routine where I pull in information from a database. I want to use variables from this sub routine in another sub routine. I tried making everything public but it doesn't want to be friendly and share.
Dim strEmail as String
Public Sub readDB()
strEmail = "whatever@doohikcy.com"
[Code]....
The readDB would read the database and set the variables and do whatever it needs to do. Then when they submit the form it would e-mail the form to whatever the email address was.
what I would like to do is create a program that runs in the task bar next to the time. What I want this to do is listen for the key stroke combo of CTRL-ALT-T no matter what program they are in. When they hit this key stroke I want the program to do is hide the task bar on the bottom of the screen. you know how you can change the hight to two rows one row and so on but you can also drag it down so it has no rows and can't see it. Then when they hit CTRL-ALT-T it will then display the task bar with what ever the hight wa set to. Just don't know what direction to go to do this.
View 3 RepliesI'd like to make blank datetimepicker in vb.net. how to? User doesn't like to see any date if it's not checked.
View 1 RepliesI followed the last post about dgvs and have been trying to get my dgvs to have alternate colored lines on form load. In both apps I am working on I am using dgvs to display certain things. I do not like the look of a blank dgv on a form. When I tried to add blank colored lines to my dgv, it did work, but when I loaded the dgv with a dataset, it pushed my columns to the right and I had to add scroll bars to see my data.
View 1 RepliesHow to display datagridview with default six blank rows and two columns.
View 4 RepliesVisual basic dot.net that runs on visual studio 2005, thats what i have, is it the same as vb2005? If you're not living on the edge, you're taking up too much room
View 3 RepliesI want to delete one or two PDF page and want to insert a blank pdf page using iTextSharp. is it possible using itextsharp?
For example, i want o delete the 25,26 th page of a pdf document, and want to insert a blank page there.
What would be the best way to add a progress bar to this routine so that it corresponds with the progress bar?[code...]
View 6 RepliesWhen entering a value in dgv I want the Tab key to fire a routine. Works out ok only thing is I have to hit the Tab twice before it fires. Don't know why, is there a way to prevent it, so that I have to hit the Tab key only once ?
View 1 RepliesI have the following code:
Code:
Imports System.Data.SqlClient
Imports System.Data
Public Class Main[code]...
and the sub Exceptionquery is not working. I can verify this because it is supposed to create a new table called scratchpad3. what I may be missing in that sub routine that isn't allowing it to work?
I was looking for something send keystrokes and I found this helpful routine SendKeys that I can use in a VB Script. I wanted to have "Right Control Key + (Scroll Lock & Scroll Lock)" sent to the machine. Essentially, having the Right Control Key pressed, I need Scroll Lock pressed twice. Here is what I tried:
set WshShell = WScript.CreateObject("WScript.Shell")
WshShell.SendKeys"^({SCROLLLOCK}{SCROLLLOCK})"
I have the following code:
Private Sub Exceptionquery()
Dim connection As System.Data.SqlClient.SqlConnection
Dim connectionString As String = "Initial Catalog=mdr;Data Source=xxxxx;uid=xxxxx;password=xxxxx"
[code]....
I get the error Invalid Object name 'Scratchpad3' on this line:
adapter.Fill(ds)
I have tried to debug this and can see that the query is correct, that the values that are being passed to the sql server are correct but it doesnt look like my code is firing off the Exceptionquery Sub. I thought to call a sub all you had to enter was the name of the sub such as this line:
Exceptionquery()
I have also verified that the mapping of the buttonclick event is mapped correctly. I have other subs that I am calling in almost the same way and those work.
I know there are several libraries of code out there that can parse CSV files according to the standard, but, for various reasons, I need one simple routine (not an entire library) that parses a CSV into a DataTable or array. Does such an animal exist or is it extinct? (Preferably C# but i can translate vb.net too)
View 3 RepliesI am writing a noughts and crosses game and everything works but the checkwinner sub routine, so basically if someone gets three X's or O's in a row then a message box pops up saying either X has won or O has won.Below is what I have written in the sub routine.
[Code]...
I'm trying to get this routine to resume the downloads.I use the same routine to download a file all the way thru non-stop..so at least the download part is working..however either the stop commands i'm using or the resume routine i thought would work is all ass backwards I'm not gonna make any conclusions or anything on this one..made myself look stupid the last time i know you all are def smarter than me when it comes to this stuff,,and dangit that just erks me to no end i tried adding a exit do in the do loop..and that of course exits ok,,but when the file is resumed is larger than its supposed to be.
[Code]...
I would like to have 1 routine to load data into different collections.I would like to use the below routine in a more dynamic fashion...be able to load a different collections with different data dependent on strSQL.Is there a way I can pass the collection I want to use.If so, in the below code how would I differentiate to load the correct data to the correct collection? [code]
View 22 RepliesI hoped you could give me som tips about speeding up som code i have to match an item to a collection of items... I have 1250 items that need to find the best match from 16774 items(every item is a class that consist of a string variable containing the path to an image, and 9 fields containg the most dominant color from a collection of 13 colors(the closest color)) The program does not use the filename or do any color matching in this step, only check the 9 fields... but it takes so
[Code]...
How do I refer to a sub routine from within a shared subroutine? When I try the following code I get this error:Cannot refer to an instance member of a class from within a shared method or shared member initializer without an explicit instance of the class.
Namespace CmdLineArgs
Friend Class Program
Shared Sub Main(ByVal args As String())[code]....
I need to write a routine that enters real (scientific) numbers into an array of 20 spaces then adds all the numbers together and prints out the contents of the array plus the total value in a format such as: 1.0 + 2.0 + 3.0 + ...... + 20.0 = 210.0 in Visual Basic 2008.[code]...
View 16 RepliesI need to write a routine that compares the difference between any date in the past and the system date, showing how many days have elapsed since that date.
View 6 RepliesI have a panel2 inside a split container that has several user controls loaded into it. Panel 1 has an exit button and I want to call one of the sub routines that is in one of the user controls loaded into Panel2.
Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
Dim dialogMessage As DialogResult
Dim a As New ucTimeTracker[code]......
This line is giving me trouble "ucTimeTracker.autoWriteFileOnExit()"
I am getting (reference to non-shared member requires an object reference).Basically I want the exit button on frmMain. SplitContainer. Panel1 to call autoWriteFileOnExit() on the user control named ucTimeTracker that is loaded into splitContainer.Panel2
I have a VB sub routine for sending emails.
I am not sure how to convert to C#,
here is the sub:
Sub SendAdditionalEmails()
Dim strDelimeter As String = ","
Dim strEmailResult As String = ""
[Code]....
I have a link that looks like a button from this html <p class="link-styleContact"><a href="#"><span>Email Contact Form</span></a></p> can I run a code behind file when this is clicked on by adding the routine name to the href? like below
<p class="link-styleContact"><a href="ContactFormClicked" runat="server"><span>Email Contact Form</span></a></p>
I am new to vb.net and am trying to design a routine that will allow the user to search for a record and return the results in a datagrid. Then double click on a row within the datagrid to view a more detailed form. I have been able to build the search form but am having problems with the double click event.I found a sample application on the Microsoft web site which is doing this on a smaller scale. The sample is built on the Northwind sql database and searches the customer table when you double click a row in the datagrid the following Microsoft code runs and opens a detailed form.
[Code]...