VS 2005 Disable DateTimePicker Onchange Function?
Sep 8, 2010
I have two datetime pickers that when changed call a function that validates the two dates and changes them as needed. This currently causes a loop where the function changes the dates on the datetime pickers that triggers the function again...
So I would like to disable the datetime pickers valuechagned function while the function runs then re-enable it after it makes the required changes.
Private Sub dtpStartDate_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dtpStartDate.ValueChanged
subValidateDate()
[Code].....
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Nov 10, 2011
I want to disable all DateTimePicker controls in the currently selected Tab in a TabControl. The code I am using (pasted below) does not work when the DateTimePicker is in a TabControl.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles Button1.Click
[Code]....
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Jun 3, 2009
I have a number of date fields in a project which need validating (they must be <Today() and be a proper date). I have tried Masked Textboxes, but I prefer the feel of the DateTimePicker control. However, can anyone tell me how I can prevent the user from selecting the calendar dropdown?
I found the following on a Microsoft Newsgroup site [URL], but as yet, I have been unable to successfully apply the code:
Public Class MyMonthCalendar
Inherits MonthCalendar
Protected Overrides Sub WndProc(ByRef m As Message)
[Code]....
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Jul 18, 2012
I have a datetimepicker and I want to use it for the time part only! So, I would like to disable its dropdown calendar..
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Feb 15, 2009
One more question also is datetimepick, can it disable when I click to it (by default it will pump out the calender to choose once). Cause I only need to utilize the time but date is no.
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May 2, 2011
I am working VB.NET 08 Access Database. I have Two "DateTimePicker" controls one is "StartDate" and one is "Enddate". Now I am selecting Startdate like May 1st OK. Now when I select Enddate control this calender shows only Equal or Greater than dates should be Enable. EndDate should be Always Greater than Equal Date. That's why when ever user selects the Enddate Before May 1st dates should be disable..
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Feb 4, 2012
I have the following code that sets a DateTimePicker as Readonly (and it works well). But to give the full effect of being readonly, I would like to implement the ability to change the Backcolor and disable the ability to use the calender. how to change the Backcolor and disable the Calender?
Public Class ReadOnlyDTP
Inherits DateTimePicker
'This hash table stores all the controls extended by this extender provider
[code]....
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Apr 4, 2011
If you enter 11 for instance into the year component of the date then tab off the control the text returned to the validation function is the text before the year was entered rather than the new text.The problem can be overcome by making the control invisible then visible. This has been the case since Visual Studio 2003, it would seem to be a bug.
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May 18, 2009
Im trying to use DateTimePicker function and save the date to an access database. Everything is working somewhat how I want it to but not 100% yet. Here is my problem. When the program is running if I click on the datetimepicker and select a date and click my save button the date IS saved to my access database as it should.
but if i run the program and don't ever click on the datetimepicker (because it is already on the correct current date) and click my save button the date doesn't get saved to the access database. The closest I have gotten was to enable the ShowCheckBox option, If i run the program this way and select the check box but dont select a date then it will save the date to my db.
But I really need it to be able to save the date to the db without the user ever clicking on the datetimepicker. Is it just a simple line I'm missing? Im pretty new to this but Ill try to explain anything the best I can if you have any further questions for me.
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Aug 5, 2009
I have two datetimepicker-"OpeningDate" and "ClosingingDate"I need to add a condition such that before entering data in the database it is checked that the "ClosingDate" is always greater than the "OpeningDate"If not then an msgbox will be displayed "Enter the correct data"
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Oct 6, 2010
I support a desktop application containing datetimepicker components.A child form loads within an MDIcontainer, updating components from data retrieved from a SQL table, allowing users to make modifications. A text component hides the current form and displays another form.When the user returns from the other form, one of the datetimepicker component is unchecked and the date is set to the current date. Tracing through this application, I do not hit any code that resets this component.Other datetimepickers located in my current form are not affected.I'm providing the routine used to display another form, and the routine used to return to the current form.
Private Sub txtPubNo_DoubleClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtPubNo.DoubleClick
Me.Hide()
SetCalledFromAForm = True
[code]....
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Sep 8, 2009
The VB.Net 2005 datetimepicker control allows the user to use the arrow keys as follows:up arrow increases the value (day or month or year)down arrow decreases the value (day or month or year) left arrow goes to the previous section (day or month or year) of the controlright arrow goes to the next section (day or month or year) of the control My users do not like using the arrows and want to enter enter the date (e.g. 9/8/2009) as follows when the field has focus:9 (press tab) 8 (press tab) 2009 (press tab) (goes to next control) They do not like 9 (press right arrow) 8 (press right arrow) 2009 (press tab) (goes to next control) Is it possible to use the tab key in lieu of the left/right arrows? If the user is in the last section of the datetimepicker field (e.g. in the yyyy section of a mm/dd/yyyy control), how will the tab set focus to the next control?
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Feb 12, 2010
I have a column ("tblSupply.Date1") in my table populated with dates. If I have value in this column there is no problem, dateTimePicker1 goes to this date. If I have this field empty, I get an error: "Object cannot be cast from DBNull to other types" when I try to open form where dateTimePicker1 is.
Me.dateTimePicker1.DataBindings.Add(New Binding("Value", ds, "tblSupply.Date1"))
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Jul 28, 2009
the DateTimePicker in my form appears like this:Attachment 72262 I want to give it an appearence like this.Attachment 72263 i.e,only the date will be displayed in the format of DD/MM/YR
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Aug 26, 2010
I 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
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Nov 8, 2009
OK, before I throw my laptop out the window... I need to insert data into my Access Database from my VB.Net2005 application. I have written and re-written this code, trying everything I can find from the web and I've had no luck. I'm getting a {"Data type mismatch in criteria expression."} error on the ExecuteNonQuery line - I'm fairly certain that it's the DateTimePickers, as I rem them out and the code works fine. However, I've tried everything - changed the column in my database to Text, changed the .Value to .Text, .Value.ToLongDateString, and every time I'm getting the same error. One of the things I read on line was that I need to use parameters in order to pass the DateTime - I need to pass the Date and Time (date format is not important, but I require the hh:mm:ss format for the time). The fields currently default to the current date/time which is perfect, but I read that depending on how you pass the data, you may run into problems if the user does not pick the drop box (leaving it as the default).
[Code].....
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Jul 22, 2009
i want to make a button who have two function like xyz.visible=true if i press this button again then Visible function make false and it autometicly renamed enable or disable
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Oct 29, 2009
I have a form that the user must enter some important information and the only way of leaving of that form is to enter the correct info. By mistake I close that form from the X on the upper right side realizing that my code restrictions on that form was not enough. How can I disable close (X) of that form? I checked the form properties but I couldn't find anything about that just to disable maximize and minimize.
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May 4, 2009
i am selecting values to my textbox from a popup window and i hav used onfocus="this.blur();" for textbox, i want to disable this function in editbutton while i want to edit . i cant use readonly since the value is not passed to server due to postback,
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Dec 31, 2010
problem 1: By default the textbox property of textbox is empty and if we want to show something so we change the text property of text box. right. Similarly is it possible for datetimepicker? i mean that date is always appear in datetimepicker both at run time and at design time, but i want that when my form is loaded so datetimepicker appears clear just like textbox is empty, and when i select some date then that date is display.
[Code]...
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Jun 16, 2009
I've got a DateTimePicker control on my form. The normal behavior is for it to allow the user to "move" between value fields with the arrow keys and remember the last date part that was highlighted when the control loses focus. Then, when the control gets focus again, that date part is highlighted. We all know this, I'm sure.What I want to know is how to access the control's selection properties/methods in order to have my DateTimePicker control always highlight the month portion when a user enters the control, regardless of what the last date part highlighted was.
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Jul 7, 2011
I'd like to make blank datetimepicker in vb.net. how to? User doesn't like to see any date if it's not checked.
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Jul 16, 2009
how to do when user point the cursor into the textbox the datetimepicker will display or open...here in my situation i have textbox
Private Sub DtpProjStartDate_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DtpProjStartDate.ValueChanged
Me.txtmydate.Text = Format("MMMM,DD,YYYY", Me.DtpProjStartDate.Value.ToShortDateString)
End Sub
that code works fine but this going to select first the datetimepicker date and after selected the value to pass to the textbox.now i want to do when user select the textbox or point the cursor into the textbox the datetimepicker will display at this time user must select the date and done...
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Nov 8, 2011
I have a DataGridViewComboBox in a dgv and I need to detect when the user changes the value....I thought I could use the CellContentClick; however, it doesn't fire when I select from the dropdown in my dgv so thinking I need a different method to choose from.
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Jan 24, 2012
In my view there is this DropDownList:
@Html.DropDownList("fOrderstatus", TryCast( ViewBag.StatusOptions, SelectList), "--pick--", New With { .title="Pick an orderstatus"} )
The view shows purchaseorders and the dropdownlist should give the user the possibility to filter, e.g. choosing only 'active' orders.
I prefer a solution in plain vanilla ASP.NET MVC.
In old skool ASP classic I would have an onchange=submit in the SELECT and in the called ASP (via the FORM action) a Request.Form([name of the SELECT])...
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Nov 4, 2009
I can't quite get a variable to pass between buttons. The variable that I want to pass is totalNumbers and each time a different button is pressed its supposed to subtract a predefined number. Im getting three errors all to do with "Statement cannot appear inside a method body. End of method assumed." What I am trying to do is put a sub procedure inside a button that will be passed back and forth between my call statement and my private sub btnBegin.
[code]...
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Feb 21, 2011
I have a textbox that sets the onchange property but when i start typing in the textbox the onchange doesnt fire initially. it never fires whats going on?
Here is the code:
VB.NET
Dim textBoxUrlYoutube As New TextBox
[code].....
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Oct 5, 2011
i dont think my on change function is being called...why?
Public Sub selCurrentManuf_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles selCurrentManuf.SelectedIndexChanged
Response.Write("<script language='javascript'>alert('"+"oi"+"');</script>")
[code].....
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Mar 8, 2012
What i am trying to is create a function were by a user when he logs in, based on the rights given to them they can either use certain buttons . I no i have to use the enable and disable function.[code]if username is true and user_name is Sales then enable x y z buttons. i been trying looking around and reading and found the following which i cannot get to work with my system but they follow a similiar patten to what i want to achieve.[code]
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Jun 9, 2011
I want that by using on changevent a calculation can be done in vb.net windosapplication. Suppose I had got some textbox like
totalamount(t) , amountpaid(ap), balancerefund(bf), amount due(ad),
If t > ap Then
bf textbox shows the amount
Else
ad textbox shows the amount
End If
How to this through an on change event
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