I have a form with a datagridview, 2 datetimepicker(dtp) controls, combobox, textbox, 3 buttons and a bindingsource. All my controls are bound to the datasource and seem to work fine when the form loads. One of my datetimepicker controls losses the bindings when I add a new row to the datagridview and save the changes. I validate the date entered in this dtp.
View 3 RepliesThis is the form I'm having problems with. As you can see I've created a tab interface which is working. There are five text boxes on it which are binded to the Staff table in the database. When the tab is changed, the binding is changed to a new field. However, unfortunately, when a new record is selected, the data bindings do not update, and instead, the first record is always being used. We suspect the problem may be coming from the fact that there is code to unbind from the text box and rebind it again. This is the code I'm talking about...
Private Sub TabCheck()
If TabState = 1 Then
pnlTabs.BackgroundImage = My.Resources.tabs1
txtBox1.Visible = True
txtBox2.Visible = True
[Code] .....
I suppose it is impossible to change FirstDayOfWeek in DateTimePicker (as it is in MonthCalendar) but who knows?
View 2 RepliesI have 2 datetimepickers on my form, and I use them to pass parameters to my sql queries for reporting purposes. You would use them to pick a date range and display clock in times for employees. Anyway, I need an option so users can see information from a single day(24 hour timespan) My first Idea was to let the user change the date on the first datetimepicker then changing the time to 12:00 AM then the second datetimepicker to 11:59 PM. I want to be able to do this programmatically, but I couldnt figure out how to change the time.
View 1 RepliesI'm binding a ComboBox's SelectedIndex to a Nullable database field like so:
VB.NET
ColapsoComboBox.DataBindings.Add("SelectedIndex", EnsaiosBindingSource, "Colapso", False, DataSourceUpdateMode.OnValidation, 0)
As you can see, I've defined the NullValue to be zero, yet I get an InvalidCastException. Is there anything I'm doing wrong? Or is handling the binding's Format and Parse events the only way around this?
I am traying to use the DateTimePicker to extract days diff from a date selected on DateTimePicker1 to a date selected on DateTimePicker2. I have no problem substracting the daydiff in numbers of days. The problem I have is that I need the DateTimePicker to tell me how many of those days are weekends (friday, saturday) and how many are weekdays.
View 2 RepliesI am using ASP.NET with SQL Server 2005.
My date get saved in the database with data type = "smalldatetime".
I am displaying the date value into a text box called txtDate with a Reader......
Dim conn As Data.SqlClient.SqlConnection
Dim Comm As Data.SqlClient.SqlCommand
Dim reader As Data.SqlClient.SqlDataReader
[Code]....
But currently my date get displayed as "2008/06/30 12:00:00 AM" and i want to display it as "30 June 2008".
I have the following
[Code]...
I was wondering what was the proper way to create a If statement for if the datetimepicker date is greater than 2 weeks from the current date.
I was thinking something along the lines of
If (datetimepicker.value > DateTimeInterval.Day(14))
but I am not sure the correct way.
I want to get the date value from datetime.now till the selected value from datetimepicker. Ex.
date Today is 08/09/2011
selected date from datetimepicker is 02/08/2012
I want to show the dates between the 2 dates mentioned. For example I want to show the value of
09/09/2011-Firstmonth
10/09/2011-SecondMonth
11/09/2011-thirdMonth
12/09/2011-FourthMonth
01/09/2012-FifthMonth
Until it reached the selected value from datetimpicker.
I have a date time picker where the dates available to be selected on it is affected by the choice made in a combo box above it. If the user selects "Express Air" in the combo box for example, the minimum date in the date time picker must be either Today or Tomorrow. Nothing before, nothing after. How do I go about this? I tried:
Private Sub DateTimeExpressAir()
If cmbShipmentMethod.Text = "Express Air" Then
DateTimePicker1.MinDate = DateTime.Today
End If
End Sub
If also possible how do I set the MAX date to like, tomorrow, or 6 days after today, etc? DateTimePicker1.MaxDate = ??
But no success. I am using Visual Basic 2008.
I am trying to take a date from a DateTimePicker, add so many days to it, then display the new date.
So far i have got:
Private Sub CalculateDateDue()
Dim RaisedDate As DateTime
Dim terms As Double
[code]....
But it doesn't seem to perform the .AddDays function, but passes over it without any problems.
terms does convert to the right number, so i know thats not an issue.
i want to add datatable to each date of a datetimepicker is this possible?
so when i select a date on datetimepicker a datatable get displayed
i've tried For Each but i don't know the code
My problem is when i select the end day of the month it gives me a negative days[code]...
View 2 RepliesThe problem I'm facing now is when I set my DateTimePicker format yyyy-MM-dd, when I put a date in that column, they will auto generate the time now.For example, i entered 2011-03-30 but they will save in database 2011-03-30 10:56:54 AM.Question here is:How can I do where i want it to be "2011-03-30 00:00:00" ?
View 3 RepliesMy app uses about 14 date as the user progresses through and the dates are used to make a number of calculations. In the process of debug I set the dates in Properties so I would not have to enter them each time with all the other inputs to test the math and out put values.
View 2 Repliesi want to check the value date of the date time picker and add 5 days to the current date it is displaying
View 3 RepliesActually, I want to be able to select a date (example, 2/10/2010-) and it add it to the textbox, then select another date(example,3/28/2010) from the same datetimepicker and it appends it to the textbox.(It will be like this on the final click, 2/10/2010-3/28/2010 and save it to the Access database).
View 9 RepliesIm a beginner at visual basic. I did some codes refering to a form in which I need to calculate the differences between my my date of birth to another date. I did a statement which gives me the difference between those in the format of years, but I need to know how I can put the months and days example if my birthdate is 11/26/1991 and I want to calculte how many years, month and days has transcurred until today it would be like 20 years 3 months and 11 days.
[Code]...
i wish to concatenate date and time from 2 different datetimepicker after concatenated I want it to be save in sql database format which is yyyy-MM-dd HH:mm:ss
I'm doing half way and my query is like below.
Dim insertCmd As New SqlCommand(Sqlstr, connection)
insertCmd.Parameters.Add("@School_Subject", Data.SqlDbType.NVarChar).Value = txtSchoolSubject.Text
[Code].....
I need to convert date format used from datetimepicker as(dd/mm/yyyy) to (yyyy-mm-dd)
View 12 RepliesWhen a user selects the datetimepicker, or types in the date in the text box, the calendar then highlights that date (for instance 02/02/2009) and puts the date in the text box.
If the user deletes the date from the textbox and then selects the drop down arrow again to show the calendar, the 02/02/2009 date is still highlighted. The user can select a different date or type in a date (including the highlighted one) - no problem. But if they wanted to select the same date they deleted, they cannot. No error message, it just leaves the text box blank.
Yes, it's very rare that that happens and they can highlight a different date, then go back in and highlight the 02/02/2009 date in a matter of two clicks but they want it fixed .
Not sure how I go about getting the calendar to clear the highlighted date once it has been deleted from the textbox?
My datetimepicker hangs up at midnight and does not roll over to a new date.
View 3 RepliesHow to insert record date in my access db. I am using hdate as my field and his data type is short date
Here is my code
cmd.CommandText = "INSERT INTO hold ([hdate], des) VALUES (#" & myDate & "#, '" & TextBox1.Text & "')" cmd.CommandText = "INSERT INTO hold ([hdate], des) VALUES (#" & datetimepicker1.text & "#, '" & TextBox1.Text & "')" cmd.CommandText = "INSERT INTO hold ([hdate], des) VALUES (#" & DateTimePicker1.Value.Date.ToShortDateString & "#, '" & TextBox1.Text & "')"
But none of them insert on the table. The record will view on the datagrid but not on the physical table.
get the previous date in datetimepicker.text?9/1/2011 i want to get the previous date 8/31/2011.
View 3 RepliesI Want To Insert Date Into Sql 2005 But Without Using Datetimepicker In Vb Net 2005 forms every time i do it by using textbox got an erro converting iwant to use textbox like we use it in access with input mask is that avilable
View 1 RepliesHow to use a DateTimePicker to query a database table. Basically, when a day is chosen on the DateTimePicker, I want all the database entries for that day to be populated on Datagridview. My Datetimepicker name is datetimepicker1. The datagridview name is dgv. The database table is called QCAuditing and the row in the database, that has timedate, which I want to use for query is called date. I was wondering if someone can point me to the right direction here.
View 1 RepliesI am querying a date from my Access 2007 database in the format: MM/DD/YYYY It's then saved as a string
Depending on the month and day, it might be 1 or 2 characters. To set the DateTimePicker, it takes it as this format: DateTimePicker.Value = New DateTime(YYYY, MM, DD)
How can I switch around the characters in my string so that it can satisfy the format the DateTimePicker wants? I was thinking about some kind of reader that "consumes" characters until it reaches a delimiter ("/") and then does something with it. I remember doing that in JAVA but not in VB.NET
Is there a way to remove default date for DateTimePicker? It defaults to today's date and I couldn't find a way to remove it. For example - when user pulls up a record and there is no date in the field - it shows today's date which is misleading. We could have the cases when the field is not filled in yet and user might think that it has today's date in it when it's actually Null. Basically I need for date fields to be blank initially. We also have the other date fields that might have dates in it but we'd need to remove the value completely. Again - DateTimePicker doesn't allow it. We tried to use masked field as well but run into the problem where existing values with single month/single day (like 1/1 for example) were converted wrong with MM/dd/yyyy mask.
View 12 RepliesI have an issue with date format in my SSRS. I am saving date from DateTimePicker to database. From there I am taking display in my datagridview using following
dgv.items(0,2).value=Format(Cdate(dsSaver.tblInv.rows(0).items(0)),"dd-MMM-yyyy")
This displays it correctly (04-Nov-2011) but when I take date from the same database to my SSRS using
="Dated: " &Format(cdate(Fields!InvDate.Value),"dd-MMM-yyyy")
It displays it like 11-Apr-2011.
I have tested all winforms fare displaying it right but all SSRS are displaying it wrong.