VS 2008 - Check If A Control Has Been Validated Yet?
Jul 28, 2009
Is there anyway to check if a Control has been validated yet?I have some code that I want to run when the Selected of a TabControl fires off.The thing is, that I have TabPages added to the TabControl at the beginning of runtime, which then triggers the Selected event before the control is completely existent, which means the Sub I have that also happens to reference the control during that event errors out because there is technically not an instance of the control completely finished building so it says I don't have a correct reference set to that object.So basically, I want to be able to check in the Sub if the control has been Validated, or maybe even created or whatever is going on.
View 9 Replies
ADVERTISEMENT
Mar 22, 2012
I have an application has a data entry form, and currently I'm using the form validation and validated events to validate the data - along with an error provider. I've read that this logic should be placed in the Dataset rather than the form. To that end, i've started exploring how to do that.
[Code]...
View 1 Replies
Jun 1, 2012
If DateTimePicker1.Value.Year <= DateTimePicker2.Value.Year Then 'dtp2 = expiry date
If DateTimePicker1.Value.Month <= DateTimePicker2.Value.Month Then
MsgBox("Expiry Date Correct!")
Else
MsgBox("Expiry Date incorrect!")
End If
End If
How would I get it to check the date? Datetimepicker1 is the current date, while Datetimepicker2 is the expiry date.
View 3 Replies
Oct 5, 2010
I'm working on creating my own sudoku solver to learn vb.net. I decided to have an element class which represents a single square in the puzzle. That element then has references to three lists which can be validated (no duplicate numbers). The three lists then would be its corresponding row/column/subGrid. Each list then holds a reference to 9 elements. Thus in my design an element has a reference to a list, which then holds a reference to that same element. Now vb.net will allow me to do this so I don't think it is the same issue that I saw when searching for solutions to circular referencing. However, I still wonder whether or not this is bad design.
View 2 Replies
Feb 28, 2011
I need to load a form call formok after the user is validated by the Computername that is stored on a table. I have all the code for that just need the part to load the form call formok. I have the code running in a module called modUserName
Function fOSUserName() As String
' Returns the network login name
Dim stDocName As String
[code].....
View 3 Replies
Aug 8, 2010
I have a datagridview and the cell gets validated in the validating event;
[Code]...
View 3 Replies
Jun 24, 2009
(image removed)
After publishing and running the setup, i get the above msgbox.. how do i fix this validation, to where i can publish my app without having it validated?
View 6 Replies
Apr 11, 2011
I'm trying to use the events Validating and Validated on a ToolStripTextbox.
Private Sub txtMenuOwnIP_Validated(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtMenuOwnIP.Validated
MyIP = txtMenuOwnIP.Text
StatusLabelIP.Text = MyIP
End Sub
[code].....
Neither code is firing.The CausesValidatition of the txtMenuOwnIP is set to true.I can enter stuff into that Textbox and leave it using the Mouse or simply piush Enter, but the posted code won't get fired (used a Breakpoint in both subs). There are no other event routines for this command used.
View 5 Replies
Oct 28, 2009
I have a custom text box component (inherits from system.windows.forms.textbox) that I created in vb.net (2005) that handles the input of numeric data. It works well.
I would like to suppress the validating and validated events from firing if the number hasn't changed. If a user is tabbing through the form and tabs from the text box, the validating/validated events are fired.
I was thinking that the text box could cache the value and compare it to what is listed in the text property. If they are different, then I would want the validating/validate events to fire. If they are the same, nothing is fired.
I can't seem to figure out how to suppress the event. I have tried overriding the OnValidating event. That didn't work.
Update:
Here is the custom text box class. The idea is that I want to cache the value of the text box on the validate event. Once the value is cached, the next time the user tabs through the box, the validating event will check to see if the _Cache is different from the .Text. If so that is when I would like to raise the validating event to the parent form (as well as the validated event). If the _cache is the same, then I don't want to raise the event to the form. Essentially the text box will work the same as a regular text box except that the validating and validated method are only raised to the form when the text has changed.
Public Class CustomTextBox
#Region "Class Level Variables"
Private _FirstClickCompleted As Boolean = False 'used to indicate that all of the text should be highlighted when the user box is clicked - only when the control has had focus shifted to it
[Code]....
View 2 Replies
May 19, 2011
I have a problem in that I have five text boxes pertaining to a customer/client, where there is a txtbox for each: Name; Address; City: State; Zipcode. Of course all the txtboxes are "" at initialization. I also have 2 combo boxes and a 2D array for prices which I have finally been able to understand the array logic. I have also been able to do my necessary calculations for.
My problem. The customer information is first to be validated as all being strings and not empty. The combo boxes I was able to get to tie to my 2 dimentional array and get good output and calculations for a finished product. I am just having problems with the error messages. Also I don't want summary totals unless the data is valid. In other words, the user must enter a complete address and make decisions about the two combo boxes, both of which are needed to use the price array. I will change the comboBoxes to represent dress sizes,"S" "M" "L" and "XL" and the other combobox to describe colorRedSatin or colorBlackBroadcloth with a two dollar difference in price between them. 'That would be similar enough to the problem I need to solve.
Basically I do not want any numbers to appear for price of the dress or addons to the dress unless all validation is complete. I do understand how the radio objects work for discounts and check boxes for accumulating accessories. The program should not give any totals untill the user has input all customer information and made decisions about input from combo boxes and selected calculate from menu. Right now it calculates and puts zeros in when choices are not made from the combo boxes by the user. It will include correct amounts for radio buttons and checkboxes if anything is entered. I need error messages for customer inputs and combo box inputs (if not selected from list of option in drop down for choices) (basically if nothing was put in a text box, the text box is empty. Of course the problem is the user must enter something in all 5 textboxes and not get multiple error messages in rapid succession to fix. We can't always count on our users putting in good data.. When I tried a Do While False with ORs I was getting endless looping. I could not get it to work because it will never execute because the control never passes back to the user.
I don't want to list a series of If/Thens becauser the user will see about 7 messages, where he/she only needs to be fed one at the time. I hope someone can give me some direction. I just need guidance on how to validate the text boxes and combo boxes. The code is analyzed with a "Calculate" on the menustrip. I would like for the calculation not to calculate and put outputs into the summery text boxes unless all textboxes are filled and combo boxes are valid for all the customer information and combo box choices for my two combo boxes describing what is needed for the order to calculate. There are also the radiobuttons and checkboxes, DIMs, Const, Variables, but not having problems with that part I have my indexing problems on the combo boxes worked out also, so I am not concerned about those now except for getting the error messages when I should. I hope that I have described my issues fully. I am using visual studio 8 with Windows 7
View 4 Replies
Mar 6, 2010
How can i allow the user to only check one check box on a CheckedListBox1..I was thinking of using a timer but that might be a stupid thing to do.
View 3 Replies
Apr 10, 2011
How do I check if Control + Z is being pressed?
I managed to check for when one key is being pressed, but apparently I can't check for two at the same time.
View 1 Replies
Aug 24, 2009
I have put the DateTimePicker control on my Form and I have made it's CheckBox property to ture ,
Now I need to know is there any Event which is fired when the Check status of the checkbox in DateTimePicker is Changed.
View 4 Replies
Jan 18, 2012
I created a TabControl with 3 Pages. Like TabPage1, TabPage2 and TabPage3. How to check which page is active in tabcontrol? Using visual basic 2010.
View 4 Replies
Mar 1, 2009
am displaying some user names in treeview control, when i select a user i want to display in textbox, here when i select morethan one user i want to display in textbox like:user1 ;'user2;'user3;'user4;;and when i unselect any username i want to remove from textboxsuppose i uncheck user2 and user3 in treeview control i want to remove from textbox.
View 7 Replies
Feb 24, 2012
I need to Select and UnSelect all items in VB.NET CheckedListBox control, there is not any configuration to do it. Any script to acomplish this ?
[Code]...
View 1 Replies
Jan 7, 2010
I am trying to get the HTML inside a HTMLElement which has an id "block". I have tried:
If webbrowser1.document.getelementbyid("block") isnot nothing then
MsgBox(webbrowser1.document.getelementbyid("block").innerHTML)
end if
But it keep throwing a NullReferenceException and tells me to check if it null/nothing which is what I'm doing.
So how do I check if an element in a HTMLdocument with a certain ID exists?
View 2 Replies
Sep 8, 2011
Im working on a lay-away form application, this particular part is part of the even where the user adds a new customer, and has come to the section for adding personal references to the customers account. What Im trying to do is to check all the text boxes inside the GroupBox control, and then add all the tags of the text boxes that are empty to the list. If the list holds any records it will be put into a message box to let the user know he missed this value. But I want them to list in one text box. Here is what I've tried:[code...]
I get a conversion error, Cannot convert Prompt to String.
View 3 Replies
Dec 19, 2010
On coloring a chkbox fore color on load. (in a user control) if i check the checkbox the action happens but the chkbox does not appear to be "checked"
Private Sub ColorMainForm()
Me.BackColor = Color.FromArgb(30, 33, 42)
chkShouldShowLog.ForeColor = Color.FromArgb(225, 255, 255)
[Code]....
View 4 Replies
Nov 23, 2010
I'm looking for Version Control software that works with VS 2008 & allows multiple check-outs of a file, merging the changes as each version is checked back in. Obviously this would require manual resolution when two programmers changed the same procedure,but that rarely happens here-what usually happens is we have two (or more) programmers working on different parts of the program that happen to occur in the same file so only one of them can actually do their work at a time. Highly inefficient.
We're currently using Visual Source Safe, by the way. I 'inherited' this so I'm not *absolutely* certain it can't be configured for this, but if so none of the older programmers (in terms of time in this office) know about it. I think they used a home-grown program. Besides, I haven't been able to remember who I heard about it from so remembering that really isn't a help-at least not yet.
View 4 Replies
Oct 25, 2011
I use the following code in order to check if certin user exists in the DACL:
Dim l_managemantObject As ManagementBaseObject() = CType(securityDescriptor.Properties("DACL").Value, ManagementBaseObject())
For Each mObject As ManagementBaseObject In l_managemantObject
l_name = CType(mObject.GetPropertyValue("Trustee"), ManagementBaseObject).Properties("Name").Value.ToString
If CType(mObject.GetPropertyValue("Trustee"), ManagementBaseObject).Properties("Domain").Value IsNot Nothing Then
[Code]...
View 1 Replies
May 19, 2010
How does the CheckBox control draw that black check mark in the white box? I can't install .Net Reflector or anything here on my work machine so could someone post the code (vb.net or c# is fine with me)?
Or if anyone knows how to do it (I have an 8x8 Bitmap object I'm drawing on already) I'd like a hand since my math isn't working out correctly[code]...
View 4 Replies
Jul 15, 2009
I am writing a User Control. Into each control I am loading a custom biz object. Because the biz object implements IDataErrorInfo interface I am able to use the ErrorProvider control on the user control.
I am binding the ErrorProvider to the biz object like this:
Me.ErrorProvider1.DataSource=MyBizObject This is all working perfectly EXCEPT. The validation is happening (and therefore I am displaying the blinkey error signs next to all feilds) as soon as the User control is loaded into the host form.
Each biz object implements a SAVE method and I want the validate to not happen until the save event is triggered on the biz object.
View 1 Replies
Nov 18, 2010
Dealing with reading from an XML file, stuctured similar to the following:
[Code]...
View 6 Replies
Jan 27, 2011
i have 20 checkboxes in usercontrol ... i wanna do whole coding in user control ...
how to show msg box if user forgot to check asp.net checkbox control on button click .. ?
View 2 Replies
Sep 18, 2011
I got a multiline textbox. And a button. I want the textbox's last line (The line lowest in the box) to be the one to be "validated". I'll try to explain. My button1_click event
[Code]...
View 4 Replies
Dec 26, 2009
The following code works perfectly to allow moving a control on a form at run-time. However, when AutoScroll is set to True on Form1, and you drag Button1 past the right and/or bottom bounds of the form, it goes haywire. I really need someway to smoothing control the autoscroll so that as you scroll the control off the form, the scrollbars smoothly appear.
[Code]...
View 1 Replies
Nov 10, 2010
I'm writing some VB2008 code to control four 7-seg LEDs I bought from Velleman. They came with some example code in VB 5.0, and with instructions telling me to input 5 bytes at a time in the format Chr$() & Chr$() & etc. for the rest of the 5 bytes. When I try to do this using VB2008, it rejects the $ sign, so I've tried it using the Chr() format, which VB2008 allows. However, it doesn't work. Is Chr() the new version of Chr$() or are they different entities? In sending data to the LEDs, I'm using LiveComPort.WriteLine() as my command. (My serial port is called LiveComPort) I also tried it with LiveComPort.Write() asthe command. I know that my serial port and the LEDs are working, because they respond to the demo program provided by Velleman.
View 7 Replies
Mar 22, 2010
1) How can I make the text in RTB control to change without clicking on it (RTB control) again? I notice that the event handler is mousedown so its only occurs whenever the users clicks on the controls. But I really have no idea how to do that. Anyone can guide me how to do that???
2) How to make the RTB's Back Color to transparent??? Cause it is not supported. Or is it I use the wrong control???
[Code]...
View 19 Replies
Aug 11, 2010
me if it's possible to have a control (e.g. a picturebox) in one panel of the splitcontainer control, and then be able to drag the control in runtime to the other panel?
View 1 Replies
