This is the coding I have so far, which is working lovely except for 1 thing.
blue
Public Class Form1
rivate Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[code].....
Problem: Using the sub routing below, when adding a value to another value the results eventually change from 2-decimal places to multiple decimal places.Basically, the amount stored should always only be 2 decimal places, because the values passed in are always 2 decimal places. Output from calling the sub routine multiple times.
Running total = 329430.75
New Withheld Amount = 710.79
Running total = 330141.54
[code]....
As a workaround, I have a new routine that uses a custom round function to properly store only 2 decimal places - as the VB round function does not perform the type of rounding desired.I understand that we are removing the value from the dictionary and adding it back..
For some time I hav been struggeling to find out way my functions dosent calculate the correct values. If you take my Struct and paste it in.Add six textboxes with two that you can add decimal numbers to rest is just to show the results And two buttons for calculating..[code]
View 4 Replies1) One Decimal Varibale stores a decimal value
2) The value must be converted in string ( some time the comma is used as decimalplaceholder some time the dot)
3) the user modifies the value
4) i need to riconvert the string back in decimal
how can i do this
so:
Variable 123.34D ----> textBox 123,34 or 123.34 -----> variable 123.34D
What is the cleanest, most readable way to String.Format a decimal with the following criteria
start with a sign symbol (+ or -)
a fixed number of fraction digits
no decimal separator
right aligned
pre-padded with "0"'s
how do you convert a decimal ( decimal place holder = dot) to a decimal (decimal place holder =comma)?
View 6 RepliesDatagrid with results form sql query
View 10 RepliesI'm using visual studio 2010 and sql server 2005 to store my data. I'm creating a system that will allow me to find/search for records that are stored within the database. Thing is, i have 2 separate forms for this - one is the find/search page which allows you to enter in as many fields as you want (the more you enter, the more efficient the search is) and the second one is the find/search results page which will show the results from the search.
I'm not using a datagrid as i've already created these forms myself. I'm on a tight schedule because i've spent so much time already trying to get this to work. Do i need to create another dataset and tableadapter and bind the text boxes? how will i code the find/search button so the search will be carried out and the results will appear in the other form?
i'm working with a sql (2005) database and using visual studio 2010. I've created a system where one of the forms is a find/search form. A user can enter in for example, a customerID and once they click on "find/search" the customerID will be searched in the database and if found, all relevant information about the customer will be retrieved and displayed in another form (find/search results page). I realise that this can be done using an SQL statement like follows
searchStr = "SELECT * FROM Customer WHERE CustomerID LIKE CIDTextBox.Text%"
What i'm unsure about is how to execute this SQL statement once the "find/search" button has been clicked and how to display the founded results in another form.
OdbcDataReader in showing decimal fields Decimal separator disappear with DB2 dsn
View 3 RepliesPublic Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
The end result is baffling me here are 2 examples when I debug
Mine: 640.1 * 49 = 31364.9
Debugger: 640.1 * 49 = 31360 ( not right needs to show the correct decimal )
Mine: .775 * 3 = 2.325
Debugger: .775 * 3 = 2.325 ( shows it perfectly???)
Im trying to make a Basic Program with a Progress Bar. Showing Visual Representation of a Percentage. I would like the Percentage to be shown as a decimal value as well. [Code] But since i do not know how to show decimal places i can not get this to create the correct value thus having a pointless progress bar and label. [Code]
View 3 RepliesI have a problem which I have tried to solve in several ways, and by searching the Internet for various terms, searching through books and Visual Basic instructional videos, but none have yielded the correct results. My goal is as follows:
1. Create a Database listing job names, job numbers, and a link to the file about the job.
2. Create a form with 2 text boxes, a search button, a box to display results, and a preview panel.
The two above steps have been completed. The following is where I get stuck
3. I want to search for either the job name, and/or the job number, have VB search through the database and return the results in the results box.
4. On clicking on one of the results in the result box, the preview panel will show a preview of the file.
Notes:
i) The files being linked top are Microsoft Excel files.
ii) The box I have used for the results currently is a listbox, though I've no idea if this is the correct choice for what I want to do.
iii) The database I created is an *.xml database created in Visual Basic. I am a fair beginner to VB, learning as I go, but I'm stumped as to how to achieve this so any pointers on how to achieve points 3 or 4
I made a windows form which contains a listbox (named VenueList). The listbox is pulling it's values from a list provided by a binding source VenuesBindingSource which is pulling in a ID for the value and a name for the text. There is a button which is causing a DialogBox to appear which is asking for values to store in the database for a NEW venue. Once the values are filled and insert the database, what's supposed to happen is that the dialog box closes and goes back to the original form which invoked it.
However, instead of updating the list. The list stays the same. But if you close the form and reopen it, you see that a new value was added.
TournamentSettings.VenuesTableAdapter.InsertVenueQuery(Trim(VenueNameTxt.Text), Trim(VenueAddress1Txt.Text), Trim(VenueAddress2Txt.Text), Trim(VenueCityTxt.Text), Trim(VenueProvinceTxt.Text), Trim(VenueZipTxt.Text), Trim(CountryBox.SelectedValue), Trim(VenuePhoneNo.Text), VenueType.SelectedText, VenueWebAddress)
TournamentSettings.VenuesTableAdapter.Fill(TournamentSettings.VenueNameList.Venues)
In the above code, InsertVenueQuery is the name of a query from the designer which is invoked to add the values onto the tableadapter VenuesTableAdapter which is used to fill the combo box on load. I also sent the Fill command to refill the table with the new value. So the question is, should I go about doing this another way, rather than feeding the Table adapter and sending a fill command on to the datatable? Or is there something that I'm not doing here which I should to force that value into the list. I'm tempted to redo everything outside of the designer but that's a lot of code since I have to essentially run two commands (one to insert the data, and another to get the @@IDENTITY value since this is run on an access database.)
After converting all degrees-->decimal, and decimal-->hours, how can i use Tan, Cos and Sin formula in vb.net? I want the user must enter an input (which it is a coordinat-->i already convert the degrees-->decimal value as suggested by stanav and paul.
The questions like this (i only calculate on paper but dont know how to implement in code):
Input user need to enter:
-latitude local (e.g. 1.4875)
-longitude local (e.g. 103.3883333)
[CODE]...
My user requests to change the . on the numpad to a when entering text in a multiline textbox.So I was thinking about the KeyDown event.To determine if the numpad . was pressed I can do something like this [code]But now how do I change the returned charachter as a , ? All e.Key... properties are ReadOnly. The KeyPress events let me change this by providing e.KeyChar, but in that event I can't check for the numpad .
View 2 RepliesHow would I go about rounding up decimal numbers to the nearest 2 decimal places? For example $7.0000032 would be $7.01 In theory, VB would make it $7.00 but if it is > $7.00, I want it to reflect that to the nearest penny... so $3.0000001 would be $3.01
View 5 RepliesI want to format textbox to decimal : I use this code in button1.click , it worked :
TextBox1.Text = Format(CType(TextBox1.Text, Decimal), "##,###.###")
But each time button1.click and textbox is formatted will bring a unexpected error for me. I want in form.load event. I format textbox. I tried above code but it is error.
I have a form that allows users to select file and then it reads the contents, parses the data and then executes a sql insert statement to add it to a database. What I am having issues with is showing real-time results. Currently, I have the import operation take place on the import form within the OnLoad event. The problem with this is it only shows the final results instead of the results real-time. Is there anyway to do this without creating a seperate thread and delegates?
View 1 RepliesWhen I use Request.Form("myInput") and the input field "myInput" is blank, I get a server error.
How do I handle this?
Is there a way to check if "myInput" has not been filled?
the right direction on methods used to extract data to a form (fill out the fields)? I have use a form within my access database itself, however I do not want the users going into the database anymore to print. I have looked into using word, but it seems more complicated than it should be.
View 3 RepliesI have a rather large VB.NET solution that has many forms. I am using Visual Studio 2010. When opening the solution one form will check out and produce an * putting in astate of needing to be saved as though I had made a change to the code or form. I have compared the code of all 3 files (.vb, .designer.vb, and .resx) to the source repository and I get they are identical, so basically nothing has changed. It does not appear to be harming the project in any way just aggravating and I was wondering
View 6 RepliesIf I have the code:Dim x as Decimal = 100.0m
Is it casting from a double to a decimal implicitly. How would I do this explicitly in vb.net?
I performed a search by completing this information in my form:
TextBox1: the user types DB-20-RTS
DateTimePicker1: selects 7 april 2004
DateTimePicker2: selects 7 april 2004
[Code]....
I don't have errors of syntax in my code the only problem is when I press the search button (it doesn't store me in the columns of datagridview the 5 things I want).
I have a project in Visual Studio 2008 and there is a working data connection to a MySQL database. In other words, I can query the db directly from Visual Studio and it will display the results.
I've tried a couple of approaches that I found online for writing a connection string and accessing the db, but no luck yet.
All I'm trying to do is code a button to query the db and then reset the text property of a label/textbox to display the results based upon another label/textbox value.
The pseudo-code I am imagining is something like this:
Private Sub query_submit_button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles query_submit_button.Click
result_textbox.Text = SELECT field FROM table WHERE otherfield = key_textbox.Text
End Sub
I didn't see any related questions posted on SO - forgive me if I missed one that already exists and this is a dupe.
What is the correct way to accomplish this?
EDIT
Using MySQL 5.1
I'm making a program when the user clicks the button it displays the number of rolls it took to get snake eyes ( 1 on each dice) I have randomized it and in the Do loop it calculates until it gets the right code. I just need some help with the code that will display in a listbox the results that didn't get picked for snake eyes.
Here is my
Public Class Form1
Dim num1 As Integer
Dim num2 As Integer
[CODE]...
Is there a way in VB .NET to have a decimal variable with 40 decimal places?
View 3 RepliesMaybe this is just a really basic question that everyone knows the answer to, and is why I couldn't find the answer. What I want to do is pretty simple. I want to declare a custom type that's just like a Single, except when you access the value, you get the value rounded to the second or third decimal place. Something like this:
Dim MyNumer as TwoDecimalNumber
MyNumer = 1.124
Msgbox(MyNumber) 'This would pop up a box showing "1.12"
[Code]....
format number to hower many number on left of decimal and 1 decimal without rounding
View 2 RepliesI have a database I am creating with about 50 users over a network. There are about 6 groups of users and these users are spread across 10 branches. I want to block/allow users from particular forms and views. For example I want branch users forms to be filtered by their branch number but depending on the group they are in they can only see some forms. i.e. 50 users, 10 branches, each branch has about 5 ppl of where 1 is in group A and 4 are in group B. I want all users that belong to branch 1 to see the information they enter, but Group B enter data but cannot approved or delete, and group A can enter, approve and delete. So then. On my login form I have the user type his/her username but the i want LEAVE function to update 2 textbox where I have named GroupName and BranchNo. Basically to run a query and look for the username and return in one textbox that user's groupname and the other textbox the user's branch no. This information will be used to filter forms and block the user from certain controls. This is the code I have so far but still can't figure how to display the results.
Private Sub UsernameTextBox_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles UsernameTextBox.Leave
'Make Connection to database
[Code].....
It keeps highlighting the BranchNumber and UserGroup and giving error "Value of type 'String' cannot be converted to System.Data.OledbCommand