Change Bgcolor Of Changed Text Box?
Sep 2, 2009
I have a data entry form with many text boxes/combo boxes/controls. I want to change their bgcolor everytime the user makes a change so they are aware of what changes they have made before commiting.
My plan is to store the original value in the tag and comapre in the validated event.
I don't won't to write the same code everytime I need a control to behave that way. I've never written a customcontrol before.
how to achieve this by probably subclassing the control and reuse the code regardless of the type of control it is?
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Aug 15, 2011
I have 10 Comboboxes in a form. All these combo boxes have databound items which come from the same column in a table in the database (access 07) (Am designing a billing software, and these comboboxes show the items (10 lines of them).All these combos reside in one Groupbox.Now for the strange (scary/funny) part, whenever I change a value of 1 combo, all the other combos change automatically and show the same value as the one that was changed. (strange!).
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Jan 20, 2011
I'm Making a Simple syntax highlighter and I'm Doing the highlighting in the text Changed event of a RTB and for obvious reasons I can't re highlight the whole document each time someone presses a key so i highlight one line each time the text changes. But this creates a Problem. If someone pastes code into the RichTextBox It only highlights the last Line. So is there a way to get if the user typed the text in with his keyboard or pasted it from the clipboard in the text Changed event?
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Aug 5, 2011
"write sub prototype for a procedure whcih is named my data and has first parameter as a string which can be changed and second parameter of an integer which cannot be change"
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Apr 16, 2011
After packaging my created program.... and install it.... if i install it in my system its ok... but if i install it to other system... some labels... changed position....
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Jun 17, 2010
Is there a way to set the IDE to automatically update all usage of a variable when the case is changed in the declaration? I know ... if I typed it correctly in the first place it wouldn't matter! And I do know how to use search/replace, I'm just lazy.
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Mar 27, 2009
I designed a software in which I used active captionas background colour. Now It works on my computer or current OS but not working properly onto other computers or OS. I mean to say that the background colour
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Oct 4, 2011
I have a borderless form with its transparency key set to its background color. I have a richtextbox a little smaller than the form clinging to the bottom left corner of the form. At the top right corner of the RTB, I have an overlapping button control that's clinging to the top right edge of the form (it's overlapping the top right corner of the RTB.) The image I have selected for the button is a circle, so I changed the flatstyle to flat, made the border 0, made the mouseover and mousedown background colors transparent, and of course made the control's background color transparent.
Here's the problem... When I run the program, instead of seeing the top right corner of the RTB that is overlapped by the button through the button, all I see is the window that's behind my program's form (or the desktop if there is no background window.) I want to see that corner! It's supposed to look like a sheet of paper with a button overlapping the corner.[code]...
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Jan 15, 2012
i was using my code textbox1.bgcolor = ___colorname___ on the gotfoucs event of my textbox , but if i have 34 textboxes then i have to write this line 34 times , which cost lots of time , so that it can automatically change the bgcolor when textbox gotfoucs ,
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Jun 15, 2012
Code for button:
Protected Sub btnAdd_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAdd.Click
Dim li1 As ListItem
Dim addList As New List(Of ListItem)
[code]....
Updates are happening on the load of a dropdownbox This has something to do with autopostbacks and the page load I think, can someone please help When I click the add button even if I have selected an item in the listbox, it will always return an error message. I don't think the listbox changedselected item is firing.
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May 25, 2010
I have made several changes to the columns in an Access db, such as additional columns, column type changes, etc. how do I now incorporate those changes into my datasource? Do I need to delete the datasource and create it from scratch?
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Apr 1, 2010
i have the following code
Private Sub select_color_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles select_color.Click
Dim ocolor As New ColorDialog
[code].....
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May 17, 2011
1.Multiple monitors are connection to one computer and they are extended.
2.My window spans to two monitors (Any window like notepad or settings wizard).
3.We change Visual Style From ON to OFF ( i.e. Changed theme from basic and high contrast to Aero or vice versa)
4.The window which was present on two gets shifted to either primary or secondary monitor.
5.This behavior is ok with normal application but I am developing such application which fails if window moves away.
6.I have added handler to check if user changes theme or visual style using :
AddHandler SystemEvents.UserPreferenceChanged, AddressOf UserPreferenceChangedHandler And in UserPreferenceChangedHandler I have checked if UserPreferenceCategory.VisualStyle changed and if it is changed then I have reset the window position back to old values before theme changed , but still it not reverting back to old position.
7.One strange behavior I observed is, it works if I set break point and step through code , but if I remove it then it's not working.
a. Added handler to catch user preferences changed event.
Private Sub RecordingWindow_Load(sender As Object, e As System.EventArgs) Handles Me.Load
AddHandler SystemEvents.UserPreferenceChanged, AddressOf UserPreferenceChangedHandler
End Sub
b. Copied old position
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
If m.Msg = WM_MOVING Then
' Console.WriteLine("Window is moving")
[code]...
d . This is additional code which i tried instead of WndProc
Private Sub RecordingWindow_LocationChanged(sender As System.Object, e As System.EventArgs) Handles MyBase.LocationChanged
_windowLocBeforThemeChanged = Me.Location
End Sub
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Nov 10, 2010
I am trying to migrate from Access Database to SQL server database. Do I need to make changes (for saving, reading, deleting etc. data) to my code as well?
I understand I need to change connection but what about code?
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Feb 22, 2011
dim oXT As New Generic.SortedDictionary(Of String, MyClass)
[Code]...
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Nov 18, 2011
I have a question, how to count how many times the text has changed in label.text ??
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May 5, 2012
I changed my Username on my computer from i.e. "xxxxxx x xxxxx" to "Dennis"
VB 2008 during a compile gave me the following error: Error reading icon 'C:Usersxxxxxx x xxxxxAppDataRoamingMicrosoftVBExpress9.0VSProjectApplication.ico' -- The system cannot find the path specified.
The file "VSProjectApplication.ico" is in 'C:UsersDennisAppDataRoamingMicrosoftVBExpress9.0'
Somewhere in the VB2008 "configuration" files I believe that I need to manually change the old path to the new path.
I found the old path in the ".suo" file. The ".suo" file is not a text file. How can I edit the .suo file, save it so that it will work?
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Jan 20, 2010
on my Form I have a DataViewGrid and some textboxes with a save button (they are filled with additional data of the selected row).Save is disabled first, when I change something in the textboxes the save button is enabled.When the user changes a gow in the grid, I want to ask before changing the grid row, if he wants to save (if the button is enabled).I am using RowEnter but this is too late, then the selected row already changed (and my textboxes already got new data)...What event can I use to ask if I should save stuff before the user changes a row?Something like BeforeRowChanging with a chance to cancel changing the row?
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Jun 4, 2011
Is there a way to check if the user has changed the value of a textbox?I try to acces a variable in one of my methods to compare against the value but I can not seem to be able to access it?
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Jan 13, 2012
-> MS Visual Studio 2010 (vb.net)
-> ODBC Connection
I made an account manager where i can store all my accounts and I want it more protected, how can I changed the displayed text in my "colPassword" in datagridview? Just like in textbox the PasswordChar, please give me sample code :)
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Jun 11, 2009
I have an number of text boxes and comboboxes on different forms. I have textchanged events which trigger a msgbox if the user enters invalid data(i.e. the number they enter is to big or to small). Is their a simple way to make the program not call the textchanged event when the form is loaded and the boxes get their initial value? Second is their a way to make the textchanged only be triggered when the user enters data not when the program clears the boxes?
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Dec 13, 2011
I have a couple properties and functions that I use to determine which shift it is, and also use it to control the input during break periods.
Imports EfficiencyPlus.EfficiencyPlusBasic
Public Class ShiftChanger
Private ReadOnly Property shiftStarts As List(Of Date)
[code].....
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Jan 27, 2009
how to trigger a textchanged event. I want to enter data in one text box and have the rest of the data show up after i fill it in. For example I enter someones name and then 3 other text boxes fill in with his height weight and ect after i entered his name.
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Jun 15, 2012
Really weird issue, perhaps someone can shed some light. I have a windows form with a combobox. When you make a selection it's supposed to update another control, so I have
Private Sub LoadAssociatedLocations() Handles combobox_categories.SelectionChangeCommitted
Dim test As String = combobox_categories.Text I've done this in other winforms projects without issue, though for some reason in this case, when the combobox is changed, combobox.Text has the value of the previous selection. The SelectedIndex value is the connect index, but Tex is always the text of the previously selected index. I can just use selected index of course, but I'd like to know what's causing this strange behavior.
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Sep 20, 2010
I have 22 text boxes that have to be checked to see if the value has changed. I am using the TextChanged Event handler to do this thus:
Private Sub TextStringChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
DataChanged = True
RemoveHandler ........
[code]....
The Handler would be added after the data had been loaded. The question is:Is there another way of checking for text changes without having to add and remove 22 handlers.
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Feb 5, 2009
im trying to add a text changed method to my listview item. all the items are dynamicly created so i would think id have to use an addhandler listviewitem1.textChanged addressof listviewitems_click where listviewitems_click is the generic sub to handle the click. but the listviewitem control doesnt have a text changed event, but you can rename the text in the control anyway.
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Jul 4, 2011
In my project, I am trying to make a button_click event occur when the text of one of my labels is changed.I am using the following code,
Code:
Private Sub Total_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Total.TextChanged
[code].....
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Mar 18, 2012
I have about 15 text boxes and instead of going to the event handler on each one and enabling a button on a change..
[Code]...
Instead of going through each one and typing that is there a simpler way?
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Feb 27, 2011
I'm in an upper level industrial engineering class in which we're learning some entry level VB programming. We're working on building a program to solve the travelling salesmen problem (finding the shortest path through a collection of cities while visiting each only once) and I'm trying to add some 'fancy' to it so I can learn some more skills. The basic program is designed to load a bitmap file of a map into a picture box and a text file with the xy coordinates of any city positions. From there, the user can plot the cities with red squares, draw a random tour through the cities, or tour the cities by always visiting the nearest neighbor not yet visited. The modification I'm working on is a method of pointing out a specific city with a black square by entering the city's number (determined from the coordinate file) into a text box.
Private Sub TxtFindCity_textchanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TxtFindCity.TextChanged
Dim ObjFindCity As Graphics = picShowMap.CreateGraphics
Dim City As Integer
[Code]...
So far, the program works, but I want the black squares (but none of the other graphics) that are created to go away once the text box is cleared. As of now they just hang around on the screen until I refresh the entire image with a 'clear map' sub. Any suggestions on how to accomplish this?
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Aug 15, 2011
I am using the following code to populate text boxes based on a drop down list index change event
Private Sub DropDownList1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As WinControls.UI.Data.PositionChangedEventArgs) Handles DropDownList1.SelectedIndexChanged
[Code]....
The code works until it gets to the last item if there is only one item in the dropdown box it does not populate the text boxes, if I loop through the code it is going to the droplist index change but it goes from dr.Read() and just jumps to dr.close() without populating the text boxes?
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