I have a Date variable startdt and a String variable hdnsdate. Suppose if startdt has the value in the form 3/1/2012 and hdnsdate has the value in the form 03/01/2012. Than how can i compare that these two dates are equal in vb.net. In if condition of my program i want to do this check. In case the two dates match move out of if loop otherwise go into the if loop. E.g A sample in C# what exactly i want.
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What I want is ListBox1 and ListBox2 above are not same Item
ListBox1.Items.Add("2")
ListBox1.Items.Add("4")
ListBox1.Items.Add("6")
ListBox1.Items.Add("8")
ListBox1.Items.Add("10")
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We would like to compare a date from the db with current date. Here is what I have tried so far: 'Obtain current date Dim curdate As String = Now.ToString("yyyy") 'Now compare curdate with date from db called eventdate. Event date is of dateTime datatype. If drv("eventdate").ToString = "" And Year(drv("eventdate").ToString) = curdate Then
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I have an aspx page that has link button that accesses a table from a database.
Each link will pull different results from that database.
Every link however needs to compare dates.
i am having problems figuring out how to pull the correct data.
For Example one of the links, pulls data from the database that is 3 months old or less.
However the SQL statment i use seems to pull all records that are greaters than the days. e.g.
SQL Table
Table Name(dateList)
-------------
no | dates
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I have a GridView with two Date columns which are EditTemplates. How do I compare the 2 dates?
View 3 RepliesThe problem that i have right now is that i don't really know how to compare two dates.What i am actually trying to do is to compare the Date Today with vbSunday, vbMonday etc using if. But something goes wrong. As for an example:
If Date.Today.Day = vbSunday Then
{
}
My compare validator is firing always even if it is greater and even if it is less.
<tr>
<td>
Selection Start Date:
</td>
<td>
<asp:TextBox ID="SelectionStartDateTextBox" runat="server"
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I would like to compare two dates in this format dd mmm yyyy, compare validators wont work because of the format and custom validator is server side validation. I would like to have a clinet side validation.
View 2 RepliesOK... I'm using Image Magick to go through files and create in effect thumbnail version of each of them into another folder.Now, I don't want to convert files if they've already been done, so I'm wondering if I can compare the Modified and Created dates of the original and thumbnail, and only convert if the source files Modified or Created is more recent?Is this a safe approach? Note: I've got the archive flag method working, but using the dates seems safer!?
View 4 RepliesBasically I'm just trying to see if the date/time of files have changed on files.So I've got code something like this:-
Dim fi_source_CreationTime As DateTime = fi.CreationTime
Dim file_info_DateCreated As String = '** LOADED from a file **
If (fi_source_CreationTime = CDate(file_info_DateCreated)) Then
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I need to validate different date's with some javascript(jquery).I have a textbox with, the inputmask from jquery The mask that i use is "d/m/y".Now i have set up a CustomValidator function to validate the date.I need 2 functions. One to check if the given date is greater then 18 years ago. You must be older then 18 year.ne function to check if the date is not in the future. It can only in the past.
The function are like
function OlderThen18(source, args) {
}
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I want to compare just the date part (and Not the time) of two VB.NET Date objects.Is there a way to do that?
View 5 Replieshave a table in SQL Server Ex 2005 containing a column called "geboortedatum" (datetime)When I open the table the date is shown like this: "31-12-2011 0:00:00".When I use the query designer and execute the query select geboortedatum from table: the date is shown like: "2011-12-31 0:00:00".he problem is that I want to use the datetimepicker in VB.NET to compare the date in a SQL statement that looks like this:
strZoekGeboorteDatum = String.Format("AND M.GeboorteDatum > " & Me.dtpZoekMedewerkerGebDatVan.Value
But probably the comparison is:
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In my application i have to create an excel report of records. everyday at a specified time the report of records added from last 24 hrs has to be generated automatically. i am unable to compare the dates.
View 1 Repliesi am using while loop. i need to check whether the previous line is equal to next line ...
Try
Dim r As Integer
r = str.IndexOf("action = LGN; description = Success")--- i need to check next line also same content[code].....
am using sql 2005 and vb 2008.i need to compare dates and select matching records betweem a selected date range.say records between 11/13/2010 and 11/20/2010.e.thing is working ok except when it comes to selecting dates between 11/1/2010 and 11/9/2010.this is happening because when am retrieving the dates from database,its being retrieved in the format 11/01/2010 instead of 11/1/2010 and so it reports no records found,and knowing the limits of sql 2005 this is the only way i can retrieve the date. [code]
View 7 RepliesI try to make a WFA for filling, reading etc. to a database. I want to compare 2 dates (actually 1 date is changed by 42 days) that are chosen by a user through a datetimepicker. After comparing the 2 dates the "newest" date has to show up in a non editable textbox. This Is my code (of course I have 2 subs for the datetimepickers as well).
Private Sub AwbdatumTextBox_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AwbdatumTextBox.TextChanged
Dim DatumbinnenkomstDateTimePicker As DateTime
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In the following LINQ query, i would like when the Loc=Locale.Gr all the records with GrID=100 returned and when the Loc is anything else all the other records with GrID <> 100 returned.How can i achieve this one? I tried something like the following, but it is totally wrong.
PrivateSub Test(Byval Loc as Locale)
Private Const GrID as integer = 100
Dim Query = From c In Mob Where c.CountryID = IIf(Loc = Locale.Gr, GrID, <> GrID) select c
End Sub
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How does one check to see if the system time is equal or not equal to a specific time? So, say I want to perform an action if your system time is between 6pm and 6am. Or something similar?
View 1 RepliesI have two dates. [code] How to print all dates between these two dates in one listbox, for example: [code]
View 8 RepliesSay 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.
I'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
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I have two textbox in my application.
Textbox1.Text="19-Jan-2010"
Textbox2.Text="Jan 2010"
May I know how can I compare that Textbox1 and Textbox2 text is within same month and same year?
I 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 Repliesthey need to make some compare version between host version and client version.. and each 1 version different will download the file to the client..[URL]..with both example, how can i make a program in VB.NET just like i said just now?
View 15 RepliesOn winxp sci. calculator when you press 9x9=81 you get 729 when you press = again.How can i add this feature to this code i already have.
View 2 RepliesYesterday I asked why a adding 10 times 0.10 to a double is not equal to int 1;in VB Why (1 = 1) is False.I got an excellent answer. The overview is because:Floating point types and integer types cannot be compared directly, as their binary representations are different.The result of adding 0.1 ten times as a floating point type may well be a value that is close to 1, but not exactly.I can see the reason why now. However, if I do something like:[code]In this case I really obtain equality between double 1.0 and int 1. I thought then that double were only approximations so I would expect d to be somehow a value close to 1 as in the original first question. Why is not a good idea to compare directly different data types (in this case double - integer) and why I this time I obtain equality ??
View 2 RepliesI'm a little foggy on System.Type versus an actual class type (like Object or XmlDocument) in .NET... will this code correctly determine if the type of a particular object is equal to a class I specify?
// Given "myObject" (unknown type), and some class type (let's say "MyClass")...
If myObject.GetType.Equals(MyClass)
If TypeOf(myObject) Is MyClass[code].....
Which one is correct? Bonus points if you can provide some information on what a class identifier is versus what a System.Type is. :)
Note: The language doesn't matter here, VB.NET or C# is fine, the code above is pseudocode.
I would like to compare dates (not times) for 2 datetime variables. I get one of the dates from database as follows and comapre it with yesterday.How can I do it?
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Why does the first if statement evaluate to true? I know if I use "is" instead of "=" then it won't evaluate to true. If I replace String.Empty with "Foo" it doesn't evaluate to true. Both String.Empty and "Foo" have the same type of String, so why does one evaluate to true and the other doesn't?
//this evaluates to true
If Nothing = String.Empty Then
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