Prevent An Event To Fire While Loading Form?
Mar 3, 2012I have a form contains NumericUpDown1, TextBox1, TextBox2, at design time i set NumericUpDown1.Value to 4 and TextBox2.Text to 100, and i have this sub[code]...
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Get Form Click Or Form Control Mouse Events To Fire DURING Form LOADing
Aug 26, 2011Im Using VB 2008. I have MsgBox() statements in all Mouse & Form Click events to TEST & NOTHING FIRES during Form Load when I click on Form or Button Controls !!! The Form Load event contains code for Displaying the Label.Text control many times with changes in the Text to simmulate annimation.
[Code]...
Can't Seem To Get Form.GotFocus Event To Fire
Oct 21, 2009I can't seem to get the Form.GotFocus event to fire.I have two forms - a main window and a debug window.The debug window will always be shown with the main window. But, I don't want the debug window to appear in the task bar - it's unnecessary.While my program is running, when I select another program, my main window and the debug window are placed behind the program that I selected. From the task bar, I can bring my program back to the front by clicking on it in the task bar. The problem is, that now my debug window is behind the other program.I have code that will "DebugWindow.BringToFront", and it works. But I need some way to run do this when the main form gets the focus.I do not wish to make any of my forms Modal. At least not permanently. If the solution is to change the modal property of the form temporarily, then that wouldn't be a problem.
I tried Me.Enter, Me.Activated, Me.Click and a few other events. Me.Click only works when I click within the Form window, not the form's title bar. Me.Activated caused problems - The code ran, but it would always end with the focus on the Debug window. When I tried to click on the main form, the Activated event would fire again, sending the focus back to the debug window.[code]
Event Won't Fire On Form Exit
Jan 19, 2009I have a MDIcontainer form witch handles MDIchildren. The problem I'm having is when i open a new Mdi child and close the Main form , The app is supposed to ask if i want to save the current MdiChild. Heres my code
[Code]...
Prevent Painting Of .NET Form While Form Is Loading?
Jun 14, 2010Is there a way to turn off all visual updates to a .NET form while I am manipulating it? When my program first loads, for example, I set the tab control to the tab that was last open. The user can see the program switching tabs.
I have looked into SuspendLayout and ResumeLayout, but either I don't understand what they are doing, or I am not using them correctly, because they don't seem to have any effect. Someone told me that there used to be a way to turn off paint events in VB 6. Does this still exist in .NET?
VS 2010 Fire Event On Any Textbox Change On Form?
May 10, 2012I have a form with over 100 textboxes that are set in multiple groupboxes and that number grows as I continue working. I am trying to get an event to fire if there is a keydown on any one of the textboxes. other than individually adding all 100 textboxes to the handler, is there a way for me to create a single event that handles all textbox.keydown events on the form?
I want to run something like the code below every time a textbox on my form changes. The code rules out text boxes within groupboxes that I don't want to fire.
If TypeName(SplitContainer1.ActiveControl) = "TextBox" and InStr(ctrl.Parent.Name, "GroupP1Payoffs") = 0 _
and InStr(ctrl.Parent.Name, "GroupP2Payoffs") = 0 and InStr(ctrl.Parent.Name, "GroupP1LoanDetails") = 0 Then
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Cancel A Form Loading In Its Load Event?
Oct 18, 2010what's the best way to stop a form from displaying in its Load event.I initialise a form using the following code:
Dim MyForm as new MyCustomForm
In the Load event of MyCustomForm, I ask the user to select a folder and use that to populate a listbox on the form.folder.If the user presses Cancel instead of selecting a folder, I don't want to display the form. Right now, I just call Me.Close in the Load event, but that still causes the form to briefly appear and disappear in the background. Also do I need to call Me.Dispose?
Me.Hide() Method In Form Loading Event
Mar 18, 2011Why do Me.Hide() And me.visible do nothing under form loading event? Now the obvious answer to me was because how could you call a form to hide if it has not loaded. Make's sense to me. So i checked the documentation to see what options i had. If the form isn't loaded when the Hide method is invoked, the Hide method loads the form but doesn't display it. Interesting. So from what i gather here me.hide should still hide the form. Or have i misinterpreted the documentation? Because the form does still display. Neither also work under Public Sub New().
The only solution i found was under sub new was to change the forms opacity to nothing. Which works fine. But after reading the documentation on Opacity i am still left with another question regarding "Visible vs Hide Vs Opacity" Calling me.hide makes the forms visible property false, Calling opacity set to Nothing makes the form in visible. Both these methods do the required task but does one take up more memory or should be favored over the other? Just because some thing work's i have learned it is not always necessarily the best way to do something.
Cause Paint Event To Fire From Click Event?
Feb 15, 2012How can I cause the Paint event to fire from a Form_Click() event? This is what I'm trying to do...
Public Class StrTests01
Private Sub StrTests01_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Click
Dim ps As Graphics = Me.CreateGraphics()
[code]....
VS 2010 - Graphics - Code Into The Form Loading Event It Wouldn't Show ?
May 11, 2012I tried to make a menu for my game, but when I placed the code into the form loading event, it wouldn't show. Then I placed a button and moved the code into the button click event and it worked. Thus, I know the code shouldn't be wrong. How can you make the graphics( as in lines, rectangle,etc) show up when it starts up?
View 5 RepliesPrevent Program From Loading Twice?
Jan 20, 2010I have a VB.NET program. In proerties/Application I checked Make a Single Instance Application. But it still allows someone from opening the program while already opened. How can I prevent this?
View 3 RepliesFire An Event Every Second?
Dec 1, 2009I need an event that fires every second, just like the timer1_timer() event of VB6. I'm using VB9/Silverlight, creating a small sidebar gadget.
View 2 RepliesKey Down Event Won't Fire
Jan 29, 2009Key Down event won't fire
View 1 RepliesLaunching Web App - How To Prevent Pages From Loading Without Prompt
Sep 7, 2011I am using VB.Net and VS 2008 to develop my web app. When I launch the app, pretty much all the pages get loaded (by that I mean the page_load event is triggered). This happens even for pages that I created. When this happens, the app throws some errors (if a particular value has not been loaded from the database) and thus results in javascript errors (yellow icon at the bottom of IE). How can I figure out "what" is causing the pages to load, and how can I prevent the pages from being loaded without code-prompting.
View 1 RepliesPrevent Data Loss Before Loading The Designer?
Mar 23, 2010I coded this program. It has three forms, when I try to open the [Design] on one of the forms it give me this error: To prevent possible data loss before loading the designer, the following errors must be resolved:
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Prevent Empty Columns From Loading In A Datacolumn?
Aug 13, 2009Prevent an empty column in Excel to be loaded into a dataset column?
View 3 RepliesAfterselect Event Does Not Fire?
Nov 17, 2009I created a control that inherits from treeview. When I add it to my project the afterselect event does not fire.
<code>
Public Class TreeViewClaims
Inherits System.Windows.Forms.TreeView
End Class
</code>
Does Not Fire SelectedNodeChanged Event In ASP.net
May 16, 2010When i clicked one of the node of treeview, it does not fire SelectedNodeChanged event.
View 1 RepliesFire An Event From A Background?
Aug 29, 2009How do I fire an event from a background thread I created onto the main thread in a class in vb.net?
I've searched A LOT fot this, but could only find non vb.net examples, mainly C#, and have not been able to translate these.
Fire Event On The Hour?
Feb 16, 2010I have a windows service in VB.NET 2008 and want to fire an event every hour on the hour within the service?
I have this working in an application were i assign the current hour to a variable and check each minute if the variable has changed. Is there a cleaner way of achieving this in a service?
I also want the service to read this in form an XML file i have modified from a service control app can i use app.config for this as i've read your not supposed to write to this file?
VS 2005 Have To Fire Event Twice?
Nov 29, 2009I have this function that totals a series of textboxes everything works fine except the last line, i need to call the function a second time for the correct total of last line,anyone have any ideas what i am doing wrong? I even tried to make the last line its own function and call it seperately but have the same behavior.
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Why Can't Get .DragDrop Event To Fire
Mar 25, 2010I am trying to drag and drop items from a listbox into a richtextbox? I can not get the .DragDrop event to fire? I have copied and past the code from [URL]
I can get the .DragEnter event to fire. The mousedown event fires the drag and drop, is there something for mouseup?
Asp.net - SelectedIndexChanged Event Doesn't Fire?
Nov 2, 2010I have added the AutoPostBack = "true" attribute to the drop down list. It doesn't work.
<asp:DropDownList CssClass="dropDownList" ID="ddlBusinessUnit"
AutoPostBack="true" runat="server" Width="250px"
OnSelectedIndexChanged="ddlBusinessUnit_SelectedIndexChanged">
[Code].....
How can I ensure that the event method is called?
Bindingsource ListChanged Event Does Not Fire
Apr 27, 2010I have the following form1, when called as the startup, everything works fine. Usually after I added a new row, fill in the fields in that row and close the form without leaving that row, both bindingsource listChanged event will fire.
However, when called from the another form. It does not work. bindingsource listChanged event does not fire when I close the form after adding a new record. Likewise dataGridView1_RowValidated event as well.
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.Common
[CODE]...
Fire Event For Voice Using .net Code?
Jul 13, 2009To execute some parts of code based on the voice(sound)
View 3 RepliesHave To Fire Event Twice For Correct Calculation
Nov 29, 2009I have this function that totals a series of textboxes everything works fine except the last line, i need to call the function a second time for the correct total of last line,anyone have any ideas what i am doing wrong? I even tried to make the last line its own function and call it separately but have the same behavior. [Code]
View 2 RepliesTextbox Textchanged Event Does Not Fire?
Sep 5, 2010I 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..
Ajax - Asp.net Update Pane Will Not Fire Event
May 18, 2012I am trying to implement an update panel on my web page. when I add this, everything works fine:
<script runat="server">
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Me.Label2.Text = Date.Now.ToString
[code]....
This will cause the event to not occur. If i change the "<" from the string, all is well. why cant I have "<" in my strings? This is important because i wont allow me to put an xml string in the text box.
Asp.net - Checkbox In TemplateField ItemTmplate Event Won't Fire
Mar 1, 2012I am using a column with check box to be able to select my data row from a GridView. But The OnCheckChanged event won't fire. I have tried reading articles to make it work and copy code exactly and it just won't fire. I am using vb.net and asp.net
<asp:GridView ID="locationDetailGrid" runat="server">
<Columns>
<asp:TemplateField>
[code]....
Asp.net - OnClick Event Will Not Fire In Firefox Or Chrome Only In IE
Apr 30, 2012in my application, I pull in http code from the server side. When this code is placed into the application - the event will happen when clicked in IE, but not in any other browser. Heres the part of the code that deals with the image that is clicked and the event.
<img canExpand="true" style="cursor:hand" id="img34635" src="../images/plus.gif" EntityID="346" EntityCat="35" onclick="LoadChild(this.EntityID, this.EntityCat, 0, this.lnEquip)">
LoadChild is a javascript function on the client side of the page. When the image is clicked in anything other than IE , nothing happens. Can anyone see why this is happening? It may be a formatting issue.
edit - here is the javascript function load child
function LoadChild(lnEntityID, lnEntityCat, FullExpand, EquipID) {
document.getElementById('dropTypes').disabled = false;
document.getElementById('dropTypes').style.background = "white";
[code]....