Datatype Available In VB That Can Be Used To Store Dates?
May 1, 2009is there a datatype available in visual basic that can be used to store dates?
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Store Bunch Of Jpeg Files From A Folder In Local File System To A Column In Database With Datatype Image?
Jan 5, 2012I Need to Store bunch of Jpeg files from local file system to a column with image datatype in databse.Can any one please provide me some code to do it?
View 6 RepliesUsing Datatype Object And Determine Datatype In Class Property - Several Integers Columns That Are Null In The Db?
Mar 8, 2010anything wrong with using datatype object and determine datatype in class property? I have a typed dataset and it has several integers columns that are null in the db. and when I make a call it throws exception.is there anythign wrong with setting it as object in my dataset.. changing the throw exception property to Nothing and passing it to my property as integer?
for each row in myDS.DataTable
cRate.CustID = row.CustID
next row
and in my class
Public Property CustID() As Integer
Get
Return _custID[code].............
Convert A TimeSpan Datatype To A DateTime Datatype?
Apr 30, 2002I'm using a 3rd party chart COM object (National Instruments CW graph) to plot data versus elapsed time.The x value needs to be a VB6 equivalent Date type which is a .NET DateTime datatype.What I need is a way to convert a TimeSpan datatype to a DateTime datatype.
Dim testTime as System.DateTime 'date
Dim plotTime as System.DateTime 'date
Dim elapsedTime as System.TimeSpan[code].....
Converting Timespan Datatype To Time Datatype?
Jan 15, 2012I have a database in mysql. The column in table is of datatype time(0)
Similarly I have a control datetimepicker in vb.net I have assigned format property as custom to the control and the CustomFormat property as HH:mm:ss tt so that it can just provide the time. I dont want the date to be in it.
Issue comes when I try to retrieve the value from database I get an error as Converion of type 'Timespan' to type 'Date' is not valid
Try
Dim myCommand As SqlCommand
myCommand = New SqlCommand("select * from [HMS].[dbo].[DoctorSchedule] where DoctorID='" & txtDoctorID.Text & "'", Connection)
[Code].....
Changing DataType To An SQL Or Database Datatype?
Jan 2, 2011I am working on a produce inventory database in my VB Express program.I have a form on the bottom and a spreadsheet at the top. I want to enter all the data in the form and have that data automatically transferred as a group to the spreadshet in the upper part of the page when I press a button.I know that there's an insert function.I set it up correctly. The problem is that I have to convert the textbox, which contain string data, to the datatype used in the database spreadsheet.HOw do I use CAST or do this?Here's the function I am using:
Me.TableAdapterManager.InventoryTableAdapter.Insert(IDTextBox.Text, fruitName, unitprice, unitsize, unitIn, unitTransit, unitOut)
Evernything is a string cause the data is coming from a textbox, I need to convert it to the datatypes used in the database.Also how do I use the CAST and Convert functions
InputBox Function - Program - Allow User To Input 5 Payrolls For Store 1, Store 2, And Store 3
Mar 22, 2012I am coding a program that will allow the user to input 5 payrolls for Store 1, Store 2, and Store 3. The total of the 5 payrolls are then added together and shown in the respective Store's labels. A total label is also there to add up all the totals into one number. The numbers in the label must be in currency form. My problem is the numbers don't add correctly when I hit calculate. The first two numbers add together, but then after that the number just seems to subtract a random amount.
So far I have this --
Public Class Form1
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Close()
End Sub
[CODE[...
VS 2008 How To Print All Dates Between These Two Dates In One Listbox
Feb 20, 2010I have two dates. [code] How to print all dates between these two dates in one listbox, for example: [code]
View 8 RepliesCalculating Between Dates Based On Two Dates?
Jan 12, 2011Say the user specifies these two dates....
Start Date: 2010-12-05
End Date: 2011-01-15
If I select December 2010 I should get the folllowing
startdate = 2010-12-05
enddate = 2010-12-31
Select January 2011 then
startdate = 2011-01-01
enddate = 2011-01-15
Should I subtract dates? How can I get the start and enddate for the current month/year based on the overall start and end date.I'm coding in vb.net.
Set The Start And End Dates For A Range Of Dates?
Oct 2, 2009I'm using two datetimepicker controls to set the start and end dates for a range of dates I'm searching for.I want to make sure that the start date selected is not greater than the end date. This code works, but it runs the messagebox prompt twice for some reason. I've tried to ignore it from doing this, but it's not working. Can someone tell me what's wrong?
Private Sub dtpStart_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dtpStart.ValueChanged
[Code]...
Bold Some Dates The Program Doesn't Show Bold Dates On Month Calendar?
Dec 15, 2009I have one more problem with MonthControl.And when I bold some dates the program doesn't show bold dates on month calendar.When I move on next or previous month and get back to currently month the program normal displays bold dates. What's the problem?
View 22 RepliesDatatype - Use Value (23 - 32) In Sql Column And Comma In Column Datatype Int
Mar 27, 2011how can i use value (23,32) in sql column datatype int how can i use comma in column data type int
View 8 RepliesStore Whole Numbers And That A String Is A Varialbe Used To Store Any Text?
Feb 19, 2009i know that integer is a variable to store whole numbers and that a string is a varialbe used to store any text, but what variable type would you use to store a number that has decimals?
View 7 RepliesError - Create A Class Called Invoice - Hardware Store Use To Represent An Invoice For An Item Sold At Store
Apr 15, 2012"Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four pieces of information as instance variables--a part number (type String), a part description (type String), a quantity of the item being purchased (type Integer) and a price per item (Type Integer). Your class should have a constructor that initialize for each of the four instance variables. Provide a property for each instance variable. If the quantity is not positive it should be set to zero. If the price per item is not positive it should be set to zero."
I attached the code I have. obj is underlined and says "Argument not specified for parameter 'Invoice4' of the 'Public Sub New (Invoice1 As Object, Invoice2 As Object, Invoice3 As Object, Invoice4 As Object)' and so the program won't run. What am I doing wrong?
Public Class Form1
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim obj1 As New Invoice(Val(TextBox1.Text))
TextBox1.Text &= obj1.Invoice1 & vbNewLine
TextBox1.Text &= obj1.Invoice2 & vbNewLine
TextBox1.Text &= obj1.Invoice3 & vbNewLine
TextBox1.Text &= obj1.Invoice4 & vbNewLine
[CODE]...
Datatype
Sep 27, 2009I don;t know what datatype while storing the data of datetimepicker in vb.net. The tools i use is sql server.
View 1 RepliesClarification About Which Datatype To Use
Feb 2, 2011I'm using SQL Server 2008 and Visual Studio 2008 with .NET Framework 3.5. I'm teaching myself and this my first time posting a question here. And I was wondering if someone could clarify something for me.I've created a table called Classes. One of the columns is called Enrolled and is of data type tinyint (0 to 255) since the class will never have more than 50 students enrolled.In my application I created an object called ClassInfo and declared a private variable ..private _classAmt as byteMy question is this..What if someone wants a total of students enrolled for that year? Do I need to convert to a larger data type such as int32 or would it be better to set the data type as Integer in t
View 1 RepliesDataTable And Bit Datatype?
Jun 20, 2012I have a window application created in VB.net 2005 and the backend is sql. I make a call to the database and it returns a datatable. When I loop through it, I get a value of -1 for my field "Rush" which is a bit datatype. when I pass the sql into the analyzer, I see the value should be a 1 so not sure why it's giving me a -1. Here's some of the code that's in the page: Dim tblSendEmail As DataTable
tblSendEmail = oService.GetSendEmailInfo 'Goes to a webservice and returns a record set in the datatable
For Each row As DataRow In tblSendEmail.Rows
iRush = row("rush")
next
[Code]...
Nullable - What Does DataType Mean In .NET
Sep 15, 2011I have the following line of code:
CType(IIf(CBool(product.IsDiscontinued Is Nothing Or product.IsDiscontinued = True), False, True), Boolean?)
What does the Boolean? mean at the end. I have seen it used on other data types as well.
Set The DataType To Text?
May 16, 2011I have the following script which works, but I don't understand why it will not work when the type is set to json:
Serverside:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
Response.Clear()
Response.ContentType = "text/plain" '//#### <- should't this be text/json? ###
[Code]....
When I change those values to json, the whole thing stops working and returns "null"...
Using SmallMoney DataType?
Nov 8, 2010I am converting the database in an application in Visual Basic 2008 from Access 2000 to SQL Server express 2009 R2 database. There are several fields that "SmallMoney" seems the mos appropriate to use. When I try to use the "SmallMoney" datatype in a Parameter, it won't accept it, the datatypes listed when I try to indicate the datatype does not inclue Mone or SmallMoney. It does include "Currency".
However the ere doesn't seem to be a "Currency" data type in Visual Basic. Would I be better of using Double and change the table definitions back to Double as they were in Access?
.net - Function Returning Different Datatype?
Feb 15, 2011Just come across the following snippet:
Public Function Checked() As Boolean
Return applyChange 'this is a string!
End Function
Whats going on here? How can a function with return type Boolean actually return a string? I'm assuming theres some implicit conversion going on here, which I'd rather not have.
Arrays And DataType Difference
Dec 13, 2011This is just a quick question: Are there any difference between
[Code]...
Change Datatype In A Datatable?
Jan 5, 2009I have a datatable that I read xml into.
One of the columns is a date, but the dataype of that column is set to string. Is it possible to change that dataype to date?
Compare To See If 2 Variables Have Same Datatype?
Jun 21, 2010as the title states. Is there a way to determine if both datatypes are the same?
View 2 RepliesConvert A Boolean To Bit Datatype?
Jul 25, 2010I have a boolean check property of my check boxes in VB.NET. how can I send that value to SQL server having a bit data type
View 4 RepliesDataType - Double VS UInt32
Mar 30, 2010Just got an overflow issued and found that it was about the datatype. I fixed it and test it around
Change the datatype of Int32 to
1. UInt32 - 32bit
2. Double - 64bit
It works fine in my side. UInt32 Length should be long enough for me. I am thinking to use UInt32 as it "saves" more disk space (or probably runs a bit faster). However, what is the drawback if I always use Double ?
Date Datatype Dislike 12:00 AM?
Oct 20, 2010I'm using two DateTimePickers to represent 'StartDate' & 'EndDate'. On initialization I set the StartDate control to today's date at 12:00 AM. I do that like this;
[Code]...
Determine The Correct Datatype?
Sep 21, 2011i have been redirected from the vb.net technet forum to use asp.net forums instead.
I am using some COM components within an asp-page or vbscript. As an example the code flows like this in vbscript:
set objectA=CreateObject("SomeComponent.A")
objectA.PropertyA="Some String"
objectA.PropertyB=ValueA
set objectB=CreateObject("SomeComponent.B")
set ObjectC=ObjectB.MethodA ObjectA
This code works fine and i can continue with the data in ObjectC.
Now i want to change this into ASP.Net with VB. If i open the COM type libraries in Oleview32, the datatype expected in MethodA is VARIANT. So i tried to pass into a type of Object in MethodA. This leads to an exception and code stops.
Is there a way to determin or to trace what vbscript is passing into MethodA so that i can get an idea of how to prepare the datatype i have to pass into the method-call? Are there any tools for that? So ctypeing to an object does not do the trick. A better documentation about the COM Object is not available.
The first reply from the vb.net guys was´, if the COM libraries can be hosted on iis? So, they are used excessively within asp pages on iis 7.5, if they can be used in asp.net, i don not know. I am not a developer but i have good understanding in writing code and using asp.net.
Equivalent Of The SQL Server Bit Datatype?
Nov 26, 2009I have a field in a SQL Server table that is of type bit.When I try to use a Boolean in VB.NET when passing parameters to a stored procedure, there are never any matches. I have also tried passing an integer to the stored procedure and that does not work either.
View 4 RepliesFunction Returning Different Datatype?
Dec 22, 2011Function returning different datatype
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