How can I bind a key combination to my vb.net application? I know it has SOMETHING to do with the registry, but I have no earthly idea what or how to go about doing this. I want the user to be able to hit those keys when the app is open and have it execute my function, but not while the app is closed.
View 3 RepliesI am a newbie using VB.net in VS 2008. I took over a vb.net winform application that has a binding navigator in it. The users wanted to add 2 new fields to the form. I added the new fields to the SQL Server 2005 database. I refreshed the Data Source tab in the project. It recognizes the 2 new fields.
I dragged them onto the form. When I go to add a record through the application, it does NOT save these 2 new fields. I check the properties for these 2 new fields under "Data Bindings" and it shows under the "Text" property the correct Binding Source and column name. I need to store these 2 new fields to the table.
I use the binding navigator in my application, but when the resolution of the display gets to small and I have to use the scrollbars, then I get a problem. The scrollbars automatically scrolls down below the navigator bar instead of showing it when the window loads. I figured it out using focus or select. it now loads on top,but then I got a second problem.When I press on my tab-control it "autoscrolls" down again and puts the tab-control as the first visible thing on the screen instead of the navigation bar. How can I prevent that?
View 1 RepliesPROJECT TYPE: Windows Forms Application
LANGUAGE: Visual Basic
.NET VERSION: 3.5
IDE: Visual Studio 2008
OPTION STRICT: on
OPTION EXPLICIT: ON
I am attempting to get 7 NumericUpDowns to display the value of the application setting they are bound to. Each UpDown has its own setting binding. The setting is a decimal datatype with a value of either 4 or 6 as default. I need the UpDowns to display the setting value when the form loads. At the same time, I need any change made to the UpDowns to be saved to the same setting so that the application can both display and use the new value the next time it runs. Unfortunately, the only way I can get them to display anything other than "1" is to hardcode a constant value, and I don't want it to be constant. I think this is the last bug in my application and would love to get it figured out, but I've spent over 8 hours on it with no luck. Here is the applicable code.
[Code]...
I have three radiobuttons in a groupbox. When they are not bound to application settings, they behave normally.After binding each of their checked properties to application settings, the following happens: I have to click an uncheckedradiobutton two times to have it checked. After the first click, all three are unchecked.
View 2 RepliesI am upgrading my application from vb6 to vb.net.I used to populate my data in datalist control in vb6 forms. I am not finding it in vb.net windows form application. Which one control is the equivalent to it?
How can i list my data in that control?
just like: I had a table with data like id, name
I want the name should be the displayed column and id the bound column? how can i do that
is there any way that i could link/bind multiple binding source to only one binding source navigator?
View 4 RepliesI want to make a simple quiz game like kbc in vb.net 2008, for that i have created five buttons in my vb application. and one table in sql as under
create table kbc
(
Question varchar(100),
Option1 varchar(100),
Option2 varchar(100),
Option3 varchar(100),
Option4 varchar(100),
Answer varchar(100)
)
And i have inserted these records in this table like this
insert kbc values('Largest key of ur pc is ','Enter','Backspace','Shift','Space','Space')
insert kbc values(2,'How many muscles are there in a human body ?','206','602','605','208','605')
Now back to my vb form the first button will catch the question and second,third,fourth,fifth buttons will catch options from sql database that i have shown. just as kbc i want to show one question with its four options. and when user click on any button i also want to check the right answer. right answer is also in my kbc table's Answer column. to do that i have written this code
Imports System.Data.OleDb
Imports System.Data
Imports System.Threading
Imports System.Data.SqlClient
[CODE]...
On all button's click i have declared temp variable to catch the last column's text from my sql table and then i want to match this text with the text of that button the user clicked. if texts match i want to go to the next question of my quiz program. how to do that working. but it is not working as i want.
I want simply to generate rapidly combinations of 16 take by2 using linq.So I want to display me the combinations only not arrangements:1,2 (not 2,1 because there are combinations)...1,16 2,3 (not 3,2) because they are combinations..2,16..Comb of 16 take by 2 makes 120 so 120 combinations will be displayed on screen.[code]So my question is how to display rapidly on screen the combinations of 16 take by 2 using this Enumerable class of Visual Basic .NET(the 120combinations in fact)
View 9 RepliesI am facing problem while in detecting the multiple key combinations ..here is my cod
Private Function keyboardCallBack(ByVal nCode As Integer, ByVal wParam As Integer, ByVal lParam As IntPtr) As IntPtr
[code].....
How can I write all possible combinations to the console? For example, if user enters abc, then it will write aaa, aab, aac, abb, abc, acc, bbb, bbc, ccc.
Here's some code:
Dim abc() As String = {"a", "b", "c"} '
Sub Main()
Console.WriteLine("Enter the amount of characters")
[Code]....
I think what I'm trying to do is considered a permutation but I could be wrong. I've come across several examples of how to permutate a string as follows:
Permutations of {A B C}: {A B C}, {A C B}, {B A C}, {B C A}, {C A B}, {C B A}
What I'm needing are results similar to this (using the same input) with a repeat of each item to create a list of all possible combinations: {A A A}, {A A B}, {A A C}, {A B A}, {A B B}, {A B C}, {A C A}, {A C B}, {A C C}...and so on.
Below is some code that I found that almost gets me there with an exception of the repeated values:
'Generates all possible combinations from a series of words
Public Function PermutateString(ByVal input_string As List(Of String), Optional ByVal Base As String = "") As List(Of String)
Dim i As Long
[CODE]...
I'm trying to send Ctrl+A to Notepad but nothing is happening. Code for the button:
[Code]...
I am trying to generate all possible 3 or 4 digit combinations from 0 to 9. I will be outputting them to a text file but I just need help with actually generating them.
View 7 RepliesI am writing an application in which we have a Product Module, Now instead of defining individual products, we want to just state the Size Ranges in Width, height and different size scale available, and then automatically generate a list of products with all the Size combinations. I cant figure how to do this.Ill give an example.This is how we define a product
Product[code].....
If i had a fixed number of Size types i would just run For loops within for loops and inside the inner most for loop write an Add Item statement with Index of evry selected item, however since the Size types are dynamic, i need to write a recursive loop, and i just cant figure how to.
My task is to develop a Control library (VB 2005) in which u enter a variable in textbox (>=1 , <=5). Lets say you enter "3" then u have too see in table all combinations of boolean numbers for 3bits (000, 001, 010 .....etc). If you enter "4" the table have to be different (0000,0001,....etc) with 16 combinations.
View 5 Replieshow you can register 2 hotkey combinations.(CTRL + END, and Alt + END).I'm using this code as a reference.
[code]....
binding navigators, datagrid view, binding source are all sql database parts.Will these parts still work if you havent got sql on you pc and your not using an database file (.log and .mfd) and your not coding to them, im using MS Jet/Oledb to code to Excel.What not to put on an Employee evaluation: This employee has hit rock bottom and shows signs of starting to dig.
View 2 RepliesBinding Master Table to TextBox and DateTimePicker and Binding Details Tables to Datagridview then Add / Update / Delete in both
View 8 RepliesI was wondering how to achieve a list with all possible combinations of letters. Now there are some nice examples on the Internet, however, I'd like to have the following:
Let's assume you have 3 letters (A, B, C), and have a limit length of 3, then it should display this list:
A
B
C
AA
[Code].....
Now, this would be fine with recursive calls I think, but I find it really difficult to think how to code that and how the computer will execute the code. It would be easier if all possibilities had a length of 3, but here that isn't the case.
Example :
If a got word "don" then file will contain
ddd
ddo
[code].....
I want to create an algorithm or formula that gives me the following combinations below. I have manually printed out all the combinations for the example containing 4 tables with respective values.
This is not permutation because i need the combinations to always follow the unique format [code]...
I would like a function generate all of the k-combinations of elements from a List of n elements. Note that I am looking for combinations, not permutations, and that we need a solution for varying k (i.e., hard-coding the loops is a no-no).
I am looking for a solution that is a) elegant, and b) can be coded in VB10/.Net 4.0.
This means a) solutions requiring LINQ are ok, b) those using the C# "yield" command are not.
The order of the combinations is not important (i.e., lexicographical, Gray-code, what-have-you) and elegance is favored over performance, if the two are in conflict.
(The OCaml and C# solutions here would be perfect, if they could be coded in VB10.)
how to generate combinations of pixels on a page using 24bit color using MS VB 10.0.
View 1 RepliesExample: That's 8 different combinations:
1, X, 1
1, X, X
1, 2, 1
1, 2, X
X, X, 1
X, X, X
X, X, 1
X, 2, X
Any way to get the different combinations depending on the Checked checkboxes into an ArrayList. One entry per possible combination (like the example above). Note this example is just for 3 games, I will have 13 games in my program so if you click all checkboxes thats 1,6M combinations. Is it really wise to have 1,6M entries in an Array? I also want to be able to set demands, like: delete all lines in the Array containing two X. Maybe an ArrayList isn't the way to go?
Using VBNET, MVC 3 and Entity Framework to write my first mvc application - a single user blog application. I am trying to create an archive sidebar that will render something like October 2011 and when the user clicks they will see all posts in october. Right now all my attempts show either duplicate dates - if there are 3 posts in october then i see october 2011 3 times or i only get back one month year combo say oct 2011. Using groupby with firstordefault i only get back one month yaear combo.
posts = _rdsqlconn.Posts.Where(Function(p) p.PostIsPublished = True).GroupBy(Function(d) d.PostDatePublished).FirstOrDefault
How can i get back unique month year combos with EF?
Additional info: I have that function in my repository. I want to pull the month and year pairs so that i have only one pair for say ocotober even if there are 3 posts in october.In the repository:
Public Function SelectPostsByDate() As IEnumerable(Of Entities.Post) Implements Interfaces.IPostRepository.SelectPostsByDate
Using _rdsqlconn As New RDSQLConn
Dim posts[code].....
If there is an array with elements: 1,2,3,4, the program should return another array with sum of all combinations:
1
2
3
[Code]....
I have 36 numbers in sets of 5. (eg. 1-2-3-4-5, 2-3-4-5-6 etc..) I need to find all the possible combinations of these numbers which total the same sum. For instance the lowest sum would be: 1 + 2 + 3 + 4 + 5 = 15. The highest possible sum is: 32 + 33 + 34 + 35 + 36 = 170. Now every five number combination within these 36 numbers will sum up between 15 and 170. How would I go about this in vb.net to produce all the possible combinations which would total say 92.
View 6 RepliesIf I want to set my Font I can use new Font=("Times New Roman", 12, Drawing.FontStyle.Bold)Instead of Bold, I can use Italic, Regular or Underline
View 1 RepliesI am trying to generate a combination of string words and this is not permutations. For example if I had a list of words like (bat, cat, dog, egg...)then try and generate n(n-1)/2 combinations like
bat cat dog egg
batcat catdog dogegg
batcatdog catdogegg
[code].....