C# - Find Out If The "TextChanged" Event Is Fired If User Is Typing Into A Textbox Or MyTextBox.Text Is Called Programmatically?
Mar 9, 2012
Is there a way to find out if the "TextChanged" event is fired because the user is typing into a textbox or the programmer called myTextBox.Text = "something"? I don't want to react when the user is typing each letter into the textbox so I am using the "Validated" event to catch when the user is done so I can react. The problem is I don't have a way to catch when the programmer does "myTextbox.Text = "something". The only way I know to catch changes there is to use TextChanged but then I don't want to be reacting when the user is typing each letter into the textbox.
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Apr 13, 2012
I want to modify this code or replace it. I want to override the the textbox's textchanged event in a user control.
Protected Overrides Sub OnTextChanged(ByVal e As System.Windows.Forms.ItemChangedEventArgs)
MyBase.OnTextChanged(e)
End Sub
[code]......
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Mar 29, 2012
Windows forms Application. VB .NET 4.0 In my application I have a global boolean variable that keeps track of when changes are made and when they are saved called changesSaved. On closing even it checks the value of this variable before closing the window.. I am using textchanged event to automatically change the value of changesSaved to FALSE when text is changed.. Problem: The group box items are being populated dynamically so the user can edit the values or simply just view them. This dynamic population is causing the textchanged event to fire because the program is changing the text value of the box to put the values in that are stored in the database. The textchanged event should not fire unless the user him or herself enters a value or values in the text boxes..
Is there a way to specify the source i guess you could say for the text changed event or another way so that it will only fire when the user inputs information.??? Functions are as follows: The first is called by the load event to place the values in the box... The next one is the one that is being called as a result of the first one and is also the one that is causing the problems.
[Code]...
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Mar 28, 2012
Setting a textchanged event to only fire when text is actually entered by user not program
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Oct 10, 2010
I have a form with several text boxes and check boxes.These are populated via a sql data reader during the form load event.
Private Sub TextFields_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles _
TxtBUsername.TextChanged, TxtBPassword.TextChanged, CBoxAccountDisabled.CheckedChanged
[code].....
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Jul 30, 2010
How can I bypass the TextChanged event if I populate the textbox during loading?for exampleWhen the VB Win form application starts it loads several text boxes with deflt information.thus firing the TextChanged event. (which I don't want to happen)
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Sep 26, 2011
i have one project any one textbox.i want to get the textbox value without textchanged event how to get the textbox value. means when i change the textbox value then the text changed event is fired but when i clicked one another textbox at that time i want to get the textbox value in vb.net
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Mar 10, 2010
I want to let TextBox control TextChanged event fire only when there are more than one character in the TextBox.
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Sep 5, 2010
I have a Textbox on my application that recieves data from another application via a sendmessage call from the other app.
I can see the data being entered in the textbox but the TextChanged event never fires when the text changes. I need to process the data that is sent but since the event does not fire I'm kinda stuck..
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Apr 15, 2009
When the user clicks a cell in a new row (the row headed by the *) I am populating a column with an integer that is incremented in the "DefaultValuesNeeded" event. However, when the user clicks off the row (having done nothing to the row), what event gets fired? I need to decrement my counter but can't locate an appropriate place to do it.
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May 17, 2012
I have a project which has a couple of tabs on form, an usercontrol is on the 2nd tab, when the form loads, i want the load event method of the usercontrol to fire, and the message box should pop up.Please see the attach file, the message box only pop up after the form is loaded and the 2nd tab is clicked, not when just the parent form is loaded.
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Mar 23, 2009
created a control inheriting a textbox. it is used to format a datetime data. i created a custom property DateTimeFormatMask which is "MM/dd/yyyy" by default. problem i'm having is that when datatable is filled by adapter and the textbox is populated with the data, it is not formatted..i placed the codes that formats the data in the Validating Event which doesn't seem to be triggered at this point.below is my code on my
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May 3, 2010
I have a combobox that has a text portion that is clearing for unknown reasons and the TextChanged event is not firing.
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Dec 4, 2010
I have menu item, in which I have specified ShortCutKeys as "Del". On click of menu item I have called specific method. I have one form on which one textbox is placed. When I hit the "Del" key the same method which gets called on menu item click is fired. I want the default behaviour to be followed by the textbox. how to suppress the event to be fired and to achive the default behaviour of the textbox or other controls present on the form.
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Dec 15, 2010
I have a TextBox control being used to capture an IPAddress from the user.I want to be able to allow them to change that IPAddres at which point the new value will be utilized by the appropriate .NET socket class to ping that new address.What other event is used with TextChanged to indicate that the user is done making changes to the TextBox. The Leave Event?
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Mar 22, 2009
Is there a built in way to know when a user is done typing into a textbox? (Before hitting tab, Or moving the mouse) I have a database query that occurs on the textchanged event and everything works perfectly. However, I noticed that there is a bit of lag of course because if a user is quickly typing into the textbox the program is busy doing a query for each character. So what I was hoping for was a way to see if the user has finished typing. So if they type "a" and stop then an event fires. However, if they type "all the way" the event fires after the y keyup. Like measuring the time since the last textchange event and if it was > than a certain value then it would proceed to run the rest of my procedures.
Language: VB.NET
Framework: .Net 2.0
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Apr 2, 2011
Is there a way to make the textbox stop typing when a user types numbers? I don't want an error message, I'd just like the user to be able to insert 10 numbers and then it shouldn't add any newly typed numbers.[code]....
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May 18, 2010
We have some code in the textCahanged event of a textbox. We only want to fire that code if the user types into the box, not if we change the text in the box programmatically. Can I detect what caused the text to change?
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Feb 28, 2012
In an application I have, when a user types in a textbox, the data in a listview is refreshed to reflect what the user is typing.As it stands, it does a refresh after each key is entered.Is there any way to smartly wait until the user has finished typing before initiating a data refresh?
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Jul 20, 2010
I'm trying to validate a few things in a form I'm building. It has a datagrid with clients info (taken from an access database) and a few textboxes where the user can type some search criteria. The thing is that those same textboxes are used to add new clients to the database and to modify a client's information if one from the datagrid is selected, so I made it that the buttons to insert and modify clients are disabled on load and thenevery time the text on a textbox changes ("TextChanged" event) they become enabled. So far so good. But then I wanted to make it so when a client from the datagrid is selected both buttons become disabled again until the text on a textbox changes (to make sure they're adding a different client and not the same one that was
selected).
I tried using the CellClick event from the datagrid to disable the buttons, but since every time a client is selected from the datagrid the info is shown on the textboxes, this triggers the TextChanged event too, and the buttons become available.So, is there a way I can tell the TextChanged event not to be triggered when the CellClick event occurs?
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Oct 6, 2009
I need to work with multiline textboxes. I am currently developing a web application that was started by someone else. The only problem I have is the text in my multiline textboxes is going to the next line before it needs to. I have played around with settings, removed the textboxes and added them back, and I am still having the same problem. When typing in the textboxes, the text moves to the next line after pressing the space bar.
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May 26, 2010
I found that if you press F5 or refress from browser window, the last event fires again
example, I have clicked on a button, the button event is carried out normally, but if I refresh the page by pressing F5 key the same event is fired again.
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Jan 20, 2010
I am able to find out when is the last time a user log into a domain but I am also wondering if it is possible to find out what's the machine's name or IP.
In my Active Directory, I see there is an attribute called logonWorkstation but it seems not being used (no value stored)
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Jun 6, 2012
I migrate a project from vb6 to vb.net.In vb.net project form's events are fired randamly. I mean form_Activated event are fired first after that form_Load event are fire. and this events are fired more than one time.what condition form_Activated event fired before form_Load event.
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Feb 9, 2011
i was wondering if it possible to have a condition where lets say you have a column in the datatable called amount and a textbox acting as the filter called say maxamount to set it so the rowfilter when filtering the table will sum the number in the amount column until the number in maxamount is met, then stop and only return the rows where the total sum of the amount column is equal or less than the maxamount value, so i guess if the next row takes us over the maxamount it discards this row and returns the rows previous to it. is this possible using datagridview rowfilter or should i be loooking elsewhere to achieve this?
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Dec 31, 2010
I want to set the TextChanged event in NumericUpDown box,so that when you press a key, it instantly fires the textchanged event.The default ValueChanged event of the NumericUpDown box does not instantly fire the ValueChanged event. You need to first press the Enter key after you enter a number.And I read somewhere that NumericUpDown box also has a TextChanged event.How do I set the TextChanged event in the NumericUpDown box?
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Jan 6, 2011
problem with no event fired after the wrapped ocx object with aximp sent out the message in a console application testing.
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Jul 27, 2011
I have VC++ windows service running on a windows 2008 server which invokes a VB.NET exe with certain comandline parameters using CreateProcess(). VB.NET application has a form wich uses WithEvents to handle certain event. These event handlers are set in the Forms Load event. Problem here is when i debug the VB.NET application individually the application works fine, Forms Load event is getting fired. But when the exe is invoked via the windows service the form Load event does not get fired. Note the Forms Show function called and not showdialogue.
Why this was done i am not sure it was a VB 6.0 code which i have converted to VB.NET. But everything works fine when i debug the application individually on windows 2008 64 bit.
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Mar 8, 2010
I have a datagridview that completely updates anytime changes are made to it. It is not connected to a source but rather the datagrid is filled when first launched.
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Mar 11, 2011
I need to know this because I am in a situation that I cannot find a alternative. I am using MaskedTextBox and has a Mask of "__/__/____". Obviously, It's a date format. Now, I cannot get if the MaskedTextBox is string.empty because it is not an empty. I cannot use "If MaskedTexBox.Text = "__/__/____" then " condition also because It never captured. If I used MaskTextBox.MaskFull = false, It gives an error on creating form. So I came up with an idea that would subtitute to TextChanged Event.
[Code]...
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