im doing an employee attendance monitoring system, and i need to have a search feature which shows an employee attendance record in a given range of dates
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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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How can I determine if a varable called "date1" is within the range of variables "date2" and "date3"?
For example, if date1 is 12/31/1999, and dates 2 and 3 are 12/31/2001 and 12/31/1997 (or the other way around), then first date is between the 2nd and 3rd dates.[code]...
how can I determine if a varable called "date1" is within the range of variables "date2" and "date3"?For example, if date1 is 12/31/1999, and dates 2 and 3 are 12/31/2001 and 12/31/1997 (or the other way around), then first date is between the 2nd and 3rd dates.
View 18 RepliesTrying to work out if there's a nice way of doing this, preferably in Linq rather than loops, which is what I've done for now.
I want the number of days my Product is active between two dates.
Product has many ProductHistories, ProductHistory has values for DateActive and DateInactive. DateInactive can be null, and often will be, to show that this history is ongoing. Histories won't overlap.
I want to sum the maximum of my startDate or the ProductHistory's DateActive, and subtract that total from the sum of the minimum of endDate or ProductHistory's DateInactive (endDate by default if DateInactive has no value).
Worked example:
Get active number of active days between 2011-01-01 (1st Jan) and 2011-02-01 (1st Feb)
Histories:
Active 2010-12-25 : Inactive 2011-01-05
Active 2011-01-15 : Inactive 2011-01-20
Active 2011-01-25 : Inactive null
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I am trying to get my calendar to render with all the dates in my database, using ranges. Only problem is, I got it working fine, but it has shifted everything one day to the future.
Protected Sub CalDayRender(ByVal sender As Object, ByVal e As DayRenderEventArgs) Handles Calendar1.DayRender
Dim strConn As String = ConfigurationManager.ConnectionStrings("SiteDataConnString").ConnectionString
Dim strQuery As String = "SELECT [EDATESTART], [EDATEEND], [ENAME] FROM [EVENTS_FORM] WHERE [EACTIVE] = 'Yes'" '"SELECT * FROM [even
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this is for a single date..but i have list of date ....and i want to check how many days fall from march 20 to apr 10 between jan 4 to apr5..
I have three tables in SQL server which I would like to show and access on a form. Table 1 contains account data, address, contact details etc. Table two contains data attached to a Person, tel no , Mobile no, Email etc. Table three contains details on what awards the person holds, i.e. one person can hold several awards.
Therefore I have a one many relationship between the first two tables and a one many relationship between the second two tables. This is set up in SQL
The first two tables are shown on a form, table 1 via a set of text boxes, table 2 via a datagrid control.
I would like the functionality whereby I could select a row in the datagrid showing the persons name and find the Persons_ID number then use that as a filter to a second datagrid view so that only the selected persons awards show in the datagrid.
I need to figure out whether a certain date falls within a range of dates. For example the date 11/07/97 (MM/DD/YYYY) falls within the following range of dates formatted as shown below:
01-Apr and 31-May
01-Jun and 31-Oct
01-Nov and 31-Mar
Dim myDate1 As DateTime = datetimepicker1.value
Dim myDate2 As DateTime = datetimepicker2.value
Dim myDateToCheck As DateTime = datetimepicker3.value
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this is for a single date..but i have list of date ....and i want to check how many days fall from march 20 to apr 10 between jan 4 to apr5..
I am trying to retrieve data to a textbox from a datagridview. I have Tabcontrol with two tabs naming Data Sheet View and Form View. The datagridview is in Data Sheet view while my textboxes are in Form View.
Al I want is that everytime I click on the data in datagridview, it would display in textbox in form view.
Here are some of my code:
Dim ret As String = "select * from newstudent_tbl where USN='" & DataGridView1.SelectedCells(0).ToString & "'"
cmd.CommandText = ret
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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 have a data grid view control which i populate using a random access file. What i want to do is when a user clicks on a cell, i want the data held in all the cells in the particular row to be used to populate some textboxes. i have searched everywhere and they all use sql databases.
View 2 RepliesI encounter problem trying to retrieve Data from Excel to fill DataGridView. The BA specification is to open up Excel Spreadsheet to loop though the row and retrieve by row, column and fill DataGridVew.
These lines of coding generated this error message
If objSheet.Cells(excelRow, 0) = "" Then <-- error Exception From HRESULT : 0x800A03EC
bolFlag = False
End If
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how to retrieve data's from MS Access table using datagridview?
View 1 RepliesI want to retrieve a report between two dates i want to sort out report by passing the values for one column i.e PaymentDate.
View 11 RepliesNote: Combobox contains company name, then when i select one of the company in the list, the information on the table connected to to the company table like purchase order table info will appear on the datagridview.
View 2 Repliesi have datagridview,listview, and database..how to retrieve the data from database into datagridview by using item in listview?
View 13 RepliesI am wanting to retrieve the current weeks dates from a DateTimePicker control.
Eg, if i select Tuesday July 5, 2011, i will return the following dates: Sun July 3 2011 right through to Sat 9 2011
I have a few questions. I am not understanding on how to do it.The first question is:
1.When the user clicks the button the info from the controls on the left appears in the label on the right.
2.How to retrieve the selected dates from the calendar control when the user clicks the button?
I want to retrieve query from MS.Access database criteria is between some date range,but I get the following error when execute my reader:Syntax error in date in query expression 'D_ate BETWEEN # @DateFrom # AND # @DateTo #'.
Dim StrSQL As String
StrSQL = "Select * from Pla_Comp Where D_ate BETWEEN # @DateFrom # AND # @DateTo #"
myCommand = New OleDbCommand(strSQL, conn)
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I am trying to get a list of dates from a provided StartDate and EndDate in my database, and use these dates to link to dates in a database (to display another variable on the y-axis of the chart) and to populate the x-axis of a chart (with the list of dates). Is it possible to get a list of dates in VB and pass them into a chart this way?
View 2 RepliesI have a datagrid view with some data in it. The first column (0) is called 'Date' and contains the dates I want to work with.What I would like is to be able to filter (only display) the data between a date range selected by the user using 'Datetimepicker1' and 'Datetimepicker2'
This is the code I have. its not right of course, but it may help explain what I'm trying to achieve, I wonder if someone could give me a pointer?
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I'm trying to set a background color for a row in my datagridview. Here is the code I'm using:
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datacolumn expression subtracting dates and taking to datagridview
View 1 RepliesI am using vb.net2010.
I am currently writing a bit of software for myself and need guidance.
I have a datagridview on a form with a date column. (column0)
I am trying to sort this by date desending but it will only sort by the day (dd) and not the whole date (dd/mm/yyyy) which leaves the months unsorted.
(example of output):
#1 - 01/03/2012
#2 - 02/01/2010
#3 - 03/02/2011
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I am pulling data from a SQL server database into a dataset. The date are a DateTime type:
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I can see the data in the field reads: 2011-09-09 15:56:29.667. I have tried to convert this by adding convert(varchar(10),DateFrom,103) which results in 09/09/2011 and then Custom Formated the DateTimePicker but still no success.I think I might be going completely off track here so can someone guide me on where I am going wrong here or the best way of doing this
I'm exporting a datagridview to excel. The first column is a Date (not DateTime) which appears like '2/15/2011'. After exporting the datagridview to excel it appears in excel as '2/15/2011 0:00', furthermore the first 68 rows in excel appear as '6/14/1898 12:00:00 AM'. Where is the time coming from? The column type in the database is date. I've attempted to edit the cell style of the datagridview column to date. I've attempted to figure out how to pre-program the formatting in excel, but it's not working either.
Dim wapp As Microsoft.Office.Interop.Excel.Application
Dim wbook As Microsoft.Office.Interop.Excel.Workbook
Dim wsheet As Microsoft.Office.Interop.Excel.Worksheet
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Having problems with null dates in a mysql table. Have eventually found out that I can store a 'null' date in mysql as "0000-00-00" and I can run the 'insert' command to add a record to the mysql table. When I check on mysql workbench I can see the row has been inserted correctly and the date shows as "0000-00-00".However...When I try to load the table into a datagridview, I get an error = mysql Conversion Exception was unhandled = "Unable to convert MySQL date/time value to System.DateTime".
View 4 RepliesI have a timer, a textbox and a datagridview with 10 columns. I am running a timmer code (you can see below) and generating randomizes numbers to textbox. Then I am putting distributing this numbers to datagridview. i want to define a dynamic range. This range is important when I am calculating the some statistical function. This range will be used as a calculation period. I want to calculate MAX, MIN, MEDIAN, MODE of the data, written in the first column, in second, third fourth and fifth columns My datagridview is like this and I am trying to calculate MovingAverage, MAX, MIN,MODE and MEDIAN for last 5 data dynamicly!
ID Time
Data1 Mov
Max Min
Mode Median
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