Keystroke Combination And Having It Invoke A Textbox Or Datetimepicker Field?
May 18, 2009
let me explain in more detail so you don't get the wrong idea of what I'm trying to accomplish.If I have a button object, say Button1, on my form and I select it with my mouse, it brings up another form or dialog. If in the text field property of Button1 I enter &Button1, the B will have an underscore under it and if I hold down the Alt key and press b, it too will invoke the other form or dialog. I would like to also have the capability to do that with a datepicker field or textbox field.
Right now, I can set up several buttons with Alt-keystroke combos that work by default, but it seems like I have to write some form of keystroke intercept routine and test for the conditions I'm looking for and force the focus to the datepicker or textbox. Am I missing something? Is there a better way to do this? Or is there actually a way of setting up a label on a textbox or datepicker object.
Kind of like when you're using MS Access and building a report, the fields have a leader that you can type a label in. That's what I'm looking to do. So if the label part of the datepicker field says Date: if I press and hold the Alt key and press d, it will invoke the datepicker field (aka open the calendar for selection).
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Mar 23, 2009
give me the line or code on how to check the characters as you type into a textbox. What i want to do is, creating a calculator.. but on the numpad, if you strike the "*"(asterix) or plus... or what have you... then it should change the Sign to it.. and not type the actual "*" in the text box..
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May 31, 2011
I've have a editable pdf with button fields in it. I'm processing this editable pdf in my vb.net application using iTextsharp. I want to know, how to programmatically invoke the button field inside the pdf. Though, I'm using iTextSharp dll, i could not find any helpful resource to invoke and handle the button events. Please guide me how to invoke the button events of pdf, programmatically using vb.net.
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Jul 14, 2011
[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 23, 2011
I have a query that I have to run that requires me to get rows from a table based on the value of a field in another table (which I have gotten earlier). I currently have it done like this (simplified).
[Code]...
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Nov 7, 2011
I am fairly new to VB .Net and have ran into an issue when working with multiple threads using BackgroundWorker.In the new thread that is created I need to access TextBox1.Text to know what the user's input was.For example:When the 'OK' button is clicked BackgroundWorker1.RunWorkerAsync starts a new Thread.
Private Sub OkButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OkButton.Click
'We cannot start more then one calculation at a single time
OkButton.Enabled = False[code]....
I know how to use Delegates and Invoke to change the value of a Textbox, but I cannot figure out how to simply access the text from a Textbox.
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May 17, 2009
write up the code for a program that could find all combination of the letters in a textbox and input the outcomes into a listbox, and I don't want any of them to repeat.
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Apr 21, 2010
I would like to know how to display 2 or more keys combination in (e.g. Textbox, msgbox...). When a user press "Ctrl + Alt + W", how to display the keypress of "Ctrl + Alt + W" in a Textbox.
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Mar 16, 2010
I've got the following code:
[code]...
The problem is that, when I call the "SetStatusBarText" sub from another thread, InvokeRequired is True (as it should be), but then my threads stall on the Me.Invoke statement - pausing execution shows them all just sitting there, not actually invoking anything.
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Sep 16, 2011
I need this for displaying in my crystal report here's my
cmd.CommandText = "Select * from pos where date= '" & datetimepicker1.text"'"
and nothing displays on my crystal report, I need the right query for that...the field value is DATE...I need the conversion for the 1/11/2001 format from date time picker to 2001-1-11 in DATE field
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Apr 7, 2010
I have a date time picker bould to a Nullable Datetime field in a sql server datatable. The ShowCheckBox option is set to true. If the user unchecks the checkbox on the datetimepicker I would like to the field to be set back to null in the DataTable. The default behaveour does not seem to do this and there is no specific event for the uncheck.
Private Sub dtpCertDate_ValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles dtpCertDate.ValueChanged
If dtpCertDate.Focused Then
[code].....
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Sep 16, 2011
I need this for displaying in my crystal report here's my code:
Code: cmd.CommandText = "Select * from pos where date= '" & datetimepicker1.text"'" and nothing displays on my crystal report, I need the right query for that...the field value is DATE...I need the conversion for the 1/11/2001 format from date time picker to 2001-1-11 in DATE field
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May 4, 2009
How can I get this to happen? I googled around and it seems setting the CUSTOM FORMAT to " " when the field is null will work but not for a BOUND datetimepicker.
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Feb 24, 2010
I am building a data based application using VB 2008 an SQL Express. I need to create textboxes on my form using code, (With & End With) method. I need a simple code string that will allow the app to check if the field to wich the textbox wil be databound is Nul, If so the textbox will not be created.
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Mar 18, 2010
anyone know how to invoke the KeyPress event ? This code shows what I would like to do, but it simply calls the eventhandler and does not insert the text into the text box, so is not what I want/need.
[Code]....
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May 13, 2009
i'am trying to open the autocomplete-window from a textbox without typing chars into the box.Normaly the autocompletewindow opens only if you type in a character, but this means, you have to know the first char.Is there any way to open the autocompletewindow without the first character? For example at the mouseover event of the textbox?
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Mar 15, 2012
My form has a TextBox with values like(e.g: P011112, C0212102) those are products lot numbers that the user enters. Then, what i want is that a DateTimePicker takes the first 4 digits as "MM-yyyy" and add 3 years to that date.
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Aug 27, 2010
I have a filesystewatcher object. On it`s event it runs a procedure which fills a treeview with a data. I had problems with treeview methods, but when I run them using invoke method everything is ok. But I still have one problem. When I load the form for the first time, everything works fine. But, when I then close the form (me.dispose, me.close), and load it once again, when Filesystemwathcer start the procedure i have an exception "invoke or begininvoke cannot be called on a control until the window handle has been created" trying to run a treeview.invoke method?
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Dec 27, 2011
I want to display ONLY the time from the datetimepicker control in a textbox. It needs to stay in time format to be used in a timespan for arithmetic reasons.
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May 25, 2011
I need to let a textbox.text value to have the same text as the DatetimePicker.Text value (as formatted)The Text value in the datetimePicker control shows the correct formatted date, however the the texbox remains blank.[code]
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Apr 10, 2009
What is Platform Invoke Service (P/Invoke)?
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Oct 13, 2010
We have a UI with a progressbar. I know how to invoke, safely, the control from which it was not created from a thread. there are threads being processed in a threadpool, all of which calls an "agent" (which is a notifier to raise an event back to the UI to then increase the progressbar). an "agent" is set as a property in a State object, which is then passed into a method which will be executed on the ThreadPool. so, I invoke on the UI the method to update the progressbar, but the bar does not seem to update at all (screen frozen) and it takes a very very long time for it to execute. without threading, no problem.
[Code]...
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May 4, 2012
Add a DateTimePicker, two TextBoxes and two Buttons to a Form
Add the following code:
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
[code].....
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May 22, 2011
I have a DateTimePicker for a product that has been dispatched to the customer.I would like to select the day with the datetimepicker and add to a textbox a 30 day warranty. I want another textbox to automatically insert and display the date that the warranty would expire.
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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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Aug 10, 2009
I populate a hash table with the name of a control as the key and the control itself as the value using the following code that loops through my code on start-up:
Private Sub Populate_Hash_Table()
For Each ctrl As Control In Me.Controls
For Each member As Control In ctrl.Controls
[Code]....
This method works effectively, but the only problem is I seem to get a preformance hit as it takes a second to set the current control to false and the new one's visibility to true. What way should I modify my code so that it works more efficiently?
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Nov 20, 2008
the code that send keystroke to another app by vb.net
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Jul 8, 2009
The feature I'm trying to implement allows the user to press the down-arrow key and "tab" through different features on the form. Is there a way to use the keyPressEventArgs or something similar to catch that? Is it necessary to delve into hooks and processes? And if so, does anyone know a good resource for a beginner?
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Jan 7, 2009
I'm having problem with keystroke detection, I want to detect only "enter" and "I" keystroke.If you press "enter", it will automatically close the form the datagridview located and send data to other form, I'm using keydown function, but I don't know how to detect only "enter" and "I" keystroke, usually I'm browsing datagrid with tab button, but when I press tab, it also closed down.
[Code]...
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