I have a form with textboxes for entering data. One of the textboxes is for entering a value that is always one character. How can I make the cursor automatically jump to the next control when a character has been entered? I'm thinking the key press and release event and then set focus but is there a better way?
View 3 RepliesWhy does CPU usage jump so high when a WebBrowser control is navigating to a page?Is there a way to drop CPU usage?
View 17 RepliesHow can I set a datagridview control to not add a new empty row when I add an entry?
View 2 RepliesI use in java JTable looks like a excell sheet create columns and rows and enter data in it.In vb 2008 what control i can use, I think table control layout not supported to data entry it supports control to in it and then add data .
View 1 RepliesI use VB in VS2010..My form has a textbox..I can control the keyboard entry by using the SuppressKeyPress method..However this does not work for the Menu key - I think it's the menu key - the one that looks like a combo with an arrow.This produces a large drop-down menu which I don't want.On checking various forums it appears that the following code should work..[code]
View 1 Replieshow can i control Data Entry in 3 different table with BeginTranaction / Commit /Rollback in vb.net 2008. i am using sql server 2000 at back end and used SqlClient,SqlConnection, ExecNonQuery method.
View 1 RepliesI need the directory entry control properties and events.
View 1 RepliesIm trying to build a user control to enter date as dd/mm/yyyy. I want to create a text box control so the user can enter the date without making a mistake.ex:-Lets assume that the user is trying to enter 31/03/2010 so when the user types 3 first the next number allowed should only be 1 or 0 because there cant be any date more than 31.and if the user enters 31/ then he should only be allowed to enter a month which has 31 days. Im trying to implement this codes in keypress method.So it checks the errors at runtime and prevents the user from typing a wrong value.So far i have got to something like this but Im stuck.Please help
Dim IndexOfCursor As Integer
IndexOfCursor = textbox1.SelectionStart
chr = e.KeyChar
[code]....
logic to build this kind of data entry form using grid controls in vb .net.
View 3 RepliesI don't think this can be that hard but I just can't get my head on it. I have a connection to an Access DB, put three text boxes representing three columns in the DB. Using the DataNavigator everything works. But what I want is to be able to enter text in say textbox1 and have textbox2 and 3 update, like when using the navigator.
Add: I want this to function like when you enter a record number in the Navigator and hit Enter, bam, goes to that record and all the text boxes update. I want to enter a number in textbox1...
I have a DataGridView in a form. I want to control the entry of data in the columns with the event ChangeColumn for the associated DataTable.
View 4 Repliesi am pulling together a cash register that will allow both bar code product entry and manual key entry.imagine if you have a tin of beans in front of you, in a small corner shop they would probably type "47" and then hit "Produce". Fairly straight forward as I have the button Produce to act upon my code and update my salestrans.mdb but,if you scan the bar code I want the same form to handle both 'real' actions, (i assume that keyboard emulation barcode scanner includes "ENTER" after providing 13 digits)....
Q. in perhaps a long winded way i want to know how to kick off an event based on the "ENTER" key being activiated by the barcode scanner)?i do not want to have to hit any buttons if i am scanning bar codes.
What is the code for ignoring the case of an entry while checking to see if the entry is correct or not... (i.e. in a flashcard program... given definition, asks for the name) I don't want the case of a character to affect whether the answer is correct or not.
View 2 RepliesI am trying to make a program with a bar code reader for the first time. I am programming with VB 2005. I want to differentiate a bar code entry to keyboard entry. My questions:
1. Does bar code reader generate a keydown (or keypress) event for each of the digits of the entry? For example, if the barcode read: 1234567890, does that mean that there will be 10 keydown (or keypress) events for that single barcode that was read?
2. I have read from the posts that the best way to differentiating keyboard vs bar code input is to analyse the time between keystroke (for less than certain number of milliseconds).
It does work on some machine's but wold not start on other computers. from the code line's I see the problem is related to devex components.
View 2 RepliesI am trying to make a program with a bar code reader for the first time. I want to differentiate a bar code entry to keyboard entry. My questions: 1. Does bar code reader generate a keydown (or keypress) event for each of the digits of the entry? For example, if the barcode read: 1234567890, does that mean that there will be 10 keydown (or keypress) events for that single barcode that was read?
2. I have read from the posts that the best way to differentiating keyboard vs bar code input is to analyse the time between keystroke (for less than certain number of milliseconds).
I am trying to subclass the password recovery control in asp.net (4) so that I can override the behaviour of the OnVerifyingUser event but I'm having trouble adding my subclassed password recovery control into the page. I tried creating an asp:placeholder control and adding a new instance of my subclassed control to it but I just get an error that says "An entry with the same key already exists". I've tried doing this in the page_init and page_load methods but get the same error.
Here's an example of my subclass
Partial Class MyPasswordReminder
Inherits PasswordRecovery
[code].....
How i can jump from one form to another form in same project in vb.net 2008
View 5 RepliesI have written code to download a webpage HTML source code into a .txt file, once downloaded, the code I posted here adds all lines as strings into a list and is supposed to find an anchor point as a position reference and then jump down the list to the real keyword.
I have an anchor point in this list that is a constant that I will always "know of" but I need to jump down 3 lines below this anchor point to the real keyword I'm looking for that is always "unknown to me" since it's a variable.
My anchor point is the keyword Hair Color which both the words and the line they're on are unique in the entire source code. My target keyword is the variable Brown (in this case), that I can't target directly because neither it nor the line it's on are unique and will change from query to query. The HTML table source code like the one below is always structured the same but some pages may vary in layout depending on the keywords applicable on the webpage. The code structure below however is always a constant, you can always count on all the webpages that the keyword Hair Color is always the 3 line into the table row and its variable is always 3 lines below that. So even though the answer I'm looking for is always 3 lines below my anchor point, my anchor point will not always be on the same line of code in the source code.
HTML code in the .txt file:
<tr>
<td class="paramname">
<b>Hair Color</b>
[Code].....
I may not be using the code correctly, through my attempts I don't know how to do that jump.
how to "skip" or "jump" down lines in my list by predefinition like: "ok, I found my anchor point, now I'm supposed to jump down 3 lines and pass what ever I find there to a string!""ok, I found my anchor point, now I'm supposed to go to the second instance of the keyword Brown from here that I find and pass what ever I find there to a string!"
I am not sure what to do with the following. The code below reads from a massive list of phrases, checks for a certain conditions and if all succeed a) adds the output to the new_question list b) keeps the value of the variable incremental to "level_0".
If the fourth "if statement" fails, the code changes the value of the variable incremental to "level_1" and jumps to a second case statement. The problem is that for certain input the code fails form the "third if statement" and execution refuses to jump to "level_1" (bacause the fourth "if-statement" must fail as well). I tried moving the "incremental variable" between the third and the fourth "and if" but since the code reads from a list of phrases even if it returns true, execution jumps to level_1 (as some phrases fail from the third "if statement"). I hope I am making sense
[code]...
I am trying to make a game where the character can jump, while stationary. How do I incorporate the constant of gravity into this situation?
View 1 RepliesI am working in a proprietary language based on basic on a measuring machine. I delibritly set the first two checks to fail for testing purposes. The first set of ifs for size X works great. When the code is run and it gets to Size_Y, if the operator picks "no I don't want to remeasure" (returning a 7) the code jumps all the way to the last end if. I suspect I have improperly nested my Ifthens, but I can't see it.
[Code]...
I am working in a proprietary language based on basic on a measuring machine. I delibritly set the first two checks to fail for testing purposes. The first set of ifs for size X works great. When the code is run and it gets to Size_Y, if the operator picks "no I don't want to remeasure" (returning a 7) the code jumps all the way to the last end if. I suspect I have imped this
View 10 RepliesWhat it the Visual Studio shortcut to switch to recently edited line of code ? (useful after accidentally pressing Page Down for example). I saw my mother using it but couldn't spot what the combination was. Also couldn't find on internet.
View 5 Repliesi am here with another problem also relating with tab .now i had 15 textboxes in my form ,when i press tab on form it simply jumps from 1st textbox to 9th textbox .
View 3 Repliesi got some problems in zooming the picture.i have 2 picturebox.picturebox1 is the orginal picture which i DO NOT want zooming picturebox2 is the one which i want to zoom..there are 2 buttons, button1 and button2.when i zoom, i donno how to program the picturebox so that the picture does not "jump out" of the box.[code]
View 5 RepliesI'd like to know how to make them in VB apps if possible."Victory is difficult to see beyond the devestation incurred in its pursuit."
View 2 RepliesI want to use a FileStream and seek from the beginning of the file while moving forward in the file .01% of the file size at a time.
So I want to seek to a position in the file, read the entire line, if it matches my criteria I am done. If not, I seek ahead another .01.
C# is OK but VB.NET preferred.
I used to do it something like this in VB6...
FileOpen(1, CurrentFullPath, OpenMode.Input, OpenAccess.Read, OpenShare.Shared)
Dim FileLength As Long = LOF(1)
For x As Single = 0.99 To 0 Step -0.01
[Code].....
When a compile fails in VB.NET in Visual Studio 2008, an Error List pops up at the bottom of the screen. To jump to an error, I double click on an error in the error list. Is there a shortcut to automatically jump to the next error in the list? It gets a little bit tedious at times having to reach down and double click a list that I like to keep collapsed.
View 1 RepliesI have a vary big picture with a map on it but the picture is 4110, 4110 X Y. Any way to jump to an x y coords on the picture its all in a panel control.
View 7 Replies