Custom Watermarked Textbox Behaving Strangely
Mar 18, 2009
I have refactored the C# CodeProject version into a VB.NET version that works for me.[code]I am building a kiosk application, and in order to keep it aesthetically pleasing I decided to implement a watermarked textbox as the entry fields.I found this project on CodeProject, converted it over to VB.NET and put it into my application.It works, in the sense that it watermarks and clears them just fine, but when I go to enter text this happens:[code]
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Nov 19, 2008
I am having the following problem, when the user wants to use the DateTimePicker (DTP), the date box shows in the middle of the screen. Then if the user wants to select a date he cant, instead the date box goes away and the DTP value remains unchanged. This is not always happening, sometimes it works fine and sometimes this happens.Please go to the link below for an image (you can see that the DTP control is on the left while the date box is to the right):[URL].. application is being run from a server to a local client on the user machine, I dont know if this has anything to do with it.
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May 29, 2009
I need to parse a file but the data is in a strange format that I'm not familar parsing.
The data is always formatted like this. The field name is to the left and the data is right of the "=" and all fields are always in this order.[code]...
Is there a more elegant way to handle parsing files like this?
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Feb 10, 2012
I am using VB 2010. I have a process that gets file names into an array and then processes each individual file. To know the progress of the process as a whole I added a progress bar. I init the Max property with the number of elements in the array, set Value to 0 to clear the progress bar and then I start processing each file. Processing takes a minimum of about 5 to 7 seconds, so I should be able to see the progress.
The problem is that the progress bar does not correctly visually represent the advance of the overall process. For testing reasons I am using 4 files. When the first file is done, the progress bar is empty. When the second file is done the progress bar is filled 25%. When 3 files are done it is filled 50%. When all files are done it fills to 75% then immediately jumps to 100% filled.
The kicker is that when I uncomment the messagebox statement shown in the code example it works just fine! I added the DoEvents() then the .Refresh call, but there was no change in behavior. I left the .Refresh commented since I believe that it is redundant with the DoEvents call. I think it might be a timing issue where the progressbar does not attempt to update until after the .Refresh/DoEvents() statement, by which time is now processing the next file.
Code follows:
'Get the file specs into array.
'Set up the progress bar.
progressBar.Maximum = strArrayOfFiles.Length()
[code]....
I built the project into an EXE and ran it under Win 7 and Win XP. It works right under XP, but continues to show the above described behavior when it runs under Win 7.
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May 23, 2011
I�m using Outlook to automatically send an email to my mobile phone. To bypass the stupid "security" bug in outlook I use redemption.safemailitem.Now, this has worked for years, but for some reason I can�t change the adress to which outlook sends the mail. Instead of sending to the adress in the code, it sends to an old adress that�s not anywhere in the code (but it was, ages ago)
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Aug 1, 2011
I have a requirement of changing the cursor from normal arrow to hourglass in my application. I am using the SetSystemCursor Win32 API to do so. But, it does not seem to be behaving correctly. Below is the sample code that I developed to demonstrate the problem -
Imports System.Runtime.InteropServices
Module Module1
Sub Main()
[code]....
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Sep 2, 2011
I made some changes to our log file since it was giving errors about being in use. Now it's chopping up the log file or not logging at all and its not usable.This is what the log looks like:
> vice(IndexInformation indexFileInfo,
> StringBuilder[] Keys) in
> D:WORKSOURCEVS2005DLLsDataLayerDataLayerDataHandlerDataHandler.vb:line
> 2646 at
[code]....
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Apr 2, 2010
I have written a vb code for the Monte Hall Problem(in my case I have used the example of 3 cards - one of the card is red and 2 are black, you have to choose red to win) But I am not getting the desired results as expected.
Could someone point out my mistakes or advice me where I have gone wrong in my code.I have attached my vb code with this thread.
[Code]...
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Oct 11, 2010
Ok for some reason I am having multiple problems with this code. The first issue is that one of the lines of code is seemingly ignored. Another issue is that some of the events are firing many times when they are only supposed to fire once. I have attached my code.
By the way, the string stored in AppSettings("WatchPath") in this case is C:Temp
Imports System.Configuration
Imports System.Diagnostics
Public Class Service1
[Code].....
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Aug 17, 2011
I simply want to add my custom TextBox to DataGridView.
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Jul 7, 2004
Have been playing around with user controls and had a go at enhancing the textbox. Everything I done works fine except now I can't seem to tab out of or into the control. I haven't changed anything except the borderstyle and coloring when the control gets the focus.
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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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Oct 19, 2009
I for the life of me, can not figure out how to get the text to repaint over my background. When the paint event fires, all text disappears.[code]...
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Jun 14, 2009
I have created a custom validator for maximum characters for a multiline textbox in ASP.Net.Below is the code that I am using.
[Code]...
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Sep 3, 2011
I have created a button in a UserControl. I have added that button to a WindowsForm in another app and added a buttonclick event to the code. When running (debugging) the app and clicking on the button; nothing happens. It doesn't act like a button at all.
The code for the button click event in my test app is as follows:
Private Sub Element1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Element1.Click
MsgBox("The button has been clicked")
End Sub
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Sep 3, 2011
I have created a button in a UserControl. I have added that button to a WindowsForm in another app and added a buttonclick event to the code. When running (debugging) the app and clicking on the button; nothing happens. It doesn't act like a button at all.
The code for the button click event in my test app is as follows:
Code:
Private Sub Element1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Element1.Click
MsgBox("The button has been clicked")
End Sub
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Jan 13, 2010
I want to add a custom property to a button in window form. Currently i am using following code to create my logic. but i want to create an enum value for a button control.
btnPartyDetails.Text = "View";
{}
btnPartyDetails.Text = "Add";
{}
[Code]...
I want to do something like this, where ActionType will be my enum.
I also want to create custom event based on the value set. How can i do this ?
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Jun 11, 2011
I have a groupbox with quite a few checkboxes. I want a specific textbox to have custom string per checkbox in the text box.
[Code]...
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Mar 3, 2012
I was wondering if anyone knew how to create a intellisense type form for a rich text box word. Really I only need help with the code that gets the highlighted words location and places my form under the word to the left.For example: When I highlight a word in my RichTextBox and click on a button, a form of my choice would popup under the word to the left.
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Oct 15, 2011
I've created a user control with a simple text box and a corresponding label and added a few custom control properties. When added to a form, I'm trying to loop through all control of this type and evaluate the custom property. In the below, the cntl.MyCustomProperty is not recognized. I can evaluate the property when I check each user control on the form by name, but not by using the loop below. I would much rather use the loop as it is much cleaner.
For Each cntl As Control In Me.Controls
If (TypeOf cntl Is MyUserControl) And cntl.MyCustomProperty = "ABC" Then
''Do some stuff
End If
Next
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Oct 29, 2009
I've made my first little custom control. It is a textbox, then next to it a picture. I've written the code already for the picture box. It basically opens up a new form with a listview on it that displays details from the database. But now, I still want the text box to have the basic properties of a normal textbox like text alignment, enabled, backcolor, etc. But not sure how to do this.
[Code]...
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Oct 24, 2011
I am trying to validate a textbox based on a dropdownlist, e.g. if ddl value is 'Day', textbox value cannot exceed 31. It seems that no matter what I enter triggers my custom validator error, what am I doing wrong,
<asp:TextBox ID="uitxtCamLastVisitDur" runat="server" CssClass="tooltip"
Width="65px" Enabled="False" ToolTip="Indicates a required spending on the member's last visit."></asp:TextBox>
[Code].....
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Aug 25, 2010
I need a multiline TextBox which is always disabled, but it shouldn't paint itself in gray, but I want to keep its designer choosen color. I previously had the same requirement with an always-black Label (no multiline) and so I inherited from Label like:
Imports System.ComponentModel
Public Class LabelDisabled
Inherits Label
Sub New()
InitializeComponent()
Enabled = False
End Sub
[Code] .....
But this way, neither I can set the "real" Enabled property, I mean the backing field.
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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]....
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Apr 17, 2010
I have a textbox, a sql database, a binding source bound to the sql database. I can use auto-complete mode of the textbox with custom strings and it suggests in in a drop down form as the user types in a textbox. How can I use autocomplete mode with datasaved in different records of a field using the bindingsource?
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Sep 2, 2011
I have created a button in a UserControl. I have added that button to a WindowsForm in another app and added a buttonclick event to the code. When running (debugging) the app and clicking on the button; nothing happens. It doesn't act like a button at all.
The code for the button click event in my test app is as follows:
Private Sub Element1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Element1.Click
MsgBox("The button has been clicked")
End Sub
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Feb 6, 2009
This is what I would like to achieve:To create a custom messagebox, with varying number of buttons with custom .Text descriptions, and other features. I intended to have a property array that would be redim-ed and have values (.Text values) set by the calling class:
[code]...
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Jun 25, 2009
I came across this great article on creating a custom datagridview column which creates a graph-like effect in the cells of a custom datagridview column:[URL]..Does anyone know how you would edit this to format the number in the cell as a percentage? And does anyone know how you would set this up to take 0 values which do not create any graph effects at all.I have been trying to do this but keep getting errors.
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Jan 31, 2012
I was trying to block the closing of a custom combo box popup window in my custom DataGrid. The popup window comes by pressing F4 or ALT+DOWN keys in my datagrid which is getting closed if I press the down arrow for the first time, after showing the first value in the combo box as selected. Next time onwards, if I press the F4 key and down arrow, I can move to any item in the popup window and select the item using keyboard and in that case, the popup window is not getting closed till I press the ENTER key or selection using the Mouse. Is there any specific reason for this behaviour or something is missing in my code part? [code]...
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Sep 2, 2010
I was trying to block the closing of a custom combo box popup window in my custom DataGrid. The popup window comes by pressing F4 or ALT+DOWN keys which is getting closed if I press the down arrow for the first time after showing the first value in the combo box as selected. Next time onwards, if I press the F4 key and down arrow, I can move to any item in the popup window and select the item using keyboard and in that case, the popup window is not getting closed till I press the ENTER key or selection using the Mouse.
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