Handler Testmenu_click() Is Not Called?
Nov 23, 2009
I have a problem with the handler on the contextmenu items which is not called. I opened my project and I clicked the rightmouse button on shockwave which the contextmenu popup and I can click the Test item, but obviously the handler testmenu_click() is not called.
I have already included the code:
Code:
Private Sub testmenu_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles testmenu.Click
MessageBox.Show("this is the test!")
End Sub
fix the handler testmenu_click which is not called??
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Nov 23, 2009
I have a problem with the handler on the contextmenu items which is not called. I opened my project and I clicked the rightmouse button on shockwave which the contextmenu popup and I can click the Test item, but obviously the handler testmenu_click() is not called.
Private Sub testmenu_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles testmenu.Click
MessageBox.Show("this is the test!")
[code].....
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Oct 12, 2010
What is an "EASI" LinkButton? Why don't you just use an ASP.NET LinkButton? Try modifying your JavaScript method so that it returns "true" if you want the postback to occur...and "false" if you want it to stop. Then change the LinkButton to so that it "returns" the value that is returned by the JavaScript method... This should stop the postback from occurring (but then again I've nevers een an EASI LinkButton before.......)
<EASI:LinkButton ID="btnSearch" runat="server" CausesValidation="False" ClientScript="return confirmSearchOK();"UseSecurityLevel="True">Search</EASI:LinkButton> JavaScript modification suggestion:
function confirmSearchOK() { var planSel = document.getElementById("<%= ddlPlanID.ClientID %>").selectedIndex;
[Code] .....
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Apr 18, 2011
The event handlers in my parent class are never called though the events are raised in the child class.
The Code:
Public Class childForm
Public Event checkboxchangedEvent(ByVal checkbox1 As Boolean, ByVal checkbox2 As Boolean)
Private Sub checkboxchanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged, CheckBox2.CheckedChanged
[code]....
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Jan 31, 2012
I have a context.Request.QueryString item that is returning the wrong value in the ProcessRequest method of a .ashx handler.
The code is like so:
Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
Dim strOrderItems As String = Convert.ToString(context.Request.QueryString("OrderItems"))
End Sub
One of the values returned by "OrderItems" is wrong. How can I find out what process has called this method to fix the incorrect data?
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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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Jun 5, 2011
I have an sql table called Stock with two fields called StockID and StockCode. I want the user to select the stockcode from a combo which in turn populates the stockid for that item into a lable on my form. I have already populated the stockcode into the combo but dont know how to compelte the rest.
Imports System.Data.SqlClient
Public Class cbo2
Private Sub cbo2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[CODE]...
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Aug 11, 2009
I have a form called FrmPracDetails which is built up with a List view called LvwColProc. Therefore when you click a field on the LvwColProc it takes you to another form called FrmColProcessing, here you can make changes to certain fields which are also present on FrmPracDetails. What I want to do is when you make changes on FrmColProcesing and Click the Save Button (which calls the Save function)the changes appear instantly on FrmPracDetails. Please note, FrmColProcessing will always be open next to FrmPracDetails. I have tried to put this code in the Save function present in FrmCol Processing as shown below, but it doesnt Refresh FrmPracDetails form. [code]
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Apr 2, 2012
I have the following line of code in my program:
JCL_History.Enqueue(JCL_History(I))
This JCL_History object is basically a Generic.List encapsulated in a wrapper and has the following method:
Public Sub Enqueue(ByRef value As String)
If Members.Contains(value) Then
Me.RemoveAt(Members.IndexOf(value))
[Code].....
In my testing I have 2 items in this JCL_History list. When I call that first line of code I posted (the one that invokes Enqueue) with I = 1 I expect the first item to be shuffled to the bottom and the second item to be shuffled to the top.
After the thread returns from Enqueue I notice that this is exactly what happens to my list, HOWEVER if I hit the "step_in" button after the execution of Enqueue I go into the Default Property's set method where Index = 1 and value = and it screws everything up, because the item that got shuffled to the end (index 1) gets overwritten by the item value shuffled to the top.
So basically the set method on the default property is getting called at what I think to be a completely ridiculous time. What gives? By the way I'm running VS2005 on XP.
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Apr 11, 2012
Can you look at my coding and let me know what I'm missing or doing wrong?I have a SSRS report that is called from a ReportViewer control and the ProcessingMode for this control is Remote. The report also has 1 parameter in it's DataSet.In the code I placed a MsgBox to make sure the code is finding the parameter and returning the parameter name. I am trying to stick the value of 10 into the parameter for playerID 10. Data for this player does exist.
I believe I need to add some more code to make this work but I'm not sure what else to add.
When the code executes the report is displayed but no data is shown in the report.
[Code]...
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May 13, 2010
I recently found an awesome tool called "Freemind" that is called a 'mind mapping' program. It's similar to MS Visio but way cooler and more automated.I reeeallly would like to integrate this into a VB.net Form, but how?
Has anyone seen or heard of mind mapping inside VB.net before? Are there programs out there already that work with VB.net or anyone have an example they have seen / built that works?
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Aug 27, 2011
How do I get a Event Handler to fire from within a nother Event Handler?
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Feb 26, 2007
My code Adds a New Row from a Source Table called "objTablaOrigen" To a final table called "objTablaDestino". This tables are passed ByRef because they come from a DataSet respectively. objRowNuevo is The Row that will be added to "objTablaDestino" The data from "objRow" is well copied to the "objRowNuevo" (that is the new Row with type of objTablaDestino).
'The problem occurs when the instruction Add is executed. ¿What happens? The new row is added as well, but this generates an Exception with the next message:
[Code]...
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Mar 21, 2012
remove an event handler from within the event handler?
I have a class that gets data from a hand scanner. When the scan is complete and the data is validated, the class fires a custom "ScanComplete" event and returns the data in a custom EventArgs.
In the calling program, I'm creating an instance of the scanning class and adding a handler for the "ScanComplete" event. In the event handler I get the data that was scanned and then remove the handler.
It seems to be working but it feels wrong to remove the handler while I'm running inside the handler. Will this cause a problem?
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Jul 13, 2011
in the .net dll (named "Calendar") I have a public class called clsCalendar that has several public properties and functions. In the Calendar project properties I have checked "Register for COM Interop" on the Compile tab. Also on the Application tab I clicked the "Assembly Information" button and selected "Make Assembly COM-Visible".
I have tried every tip/idea I can think of that I stumbled across such as running sn.exe and then in the Signing tab of Calendar properties checking "Sign the Assembly" and picking the .snk file created from running sn.exe.I have tried running "Regasm.exe" against my Calendar.tlb file with the /Codebase option. Nothing seems to work.When testing in a .net app, I needed to code as "new Calendar.clsCalendar" to get it to work. Our existing vb6 apps that need to call the dll simply say "new clsCalendar" and I can't change these apps.
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Mar 10, 2011
I am developing Restaurant POS Application with home devliery module. Customer call to restaurant and give the order. so whenever customer calls comes i need to show the pop-up on my desktop application with particular customer information. Please guide me how to do this. I am using visual studio 2008 (vb.net)
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Sep 8, 2009
Private someSub()
If someBoolean = True Then Exit Sub
' do some great work because someBoolean is False
End Sub
I know there is a name for this. The idea is to check something and if it isn't what you want then you stop code processing. I thought it was called "escape pattern", but Google isn't confirming that name.
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Jan 8, 2010
So I've got some code that I've written in C and compiled into a DLL. This code is called by my VB.NET code. That interface is working fine, but I need to debug some of the C code. But obviously since it's not in VB I can't use the Visual Studio debugger. I've tried attaching a GDB debugger to the process while it's running. It lets me set the breakpoints and it even stops at them, but it doesn't let me see the lines of code. My code was compiled with debug information, so I don't know why it won't let me see it.
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Feb 4, 2011
I have a project I'm updating to Framework 4. It's not originally my project, I have inherited it from a former colleague, so I'm not completely up to speed with it yet.
In one of the libraries of the project that controls context menus, I get pInvokeStackImbalance MDA alerts on the line:
Dim c As Color = Color.FromArgb(GetSysColor(COLOR_MENUBAR))
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May 14, 2010
I've started programming and have this piece of [code]...
The problem is: It seems to not get called at all when i close my application!?
I've tried using msgbox instead of code to see if it worked, setting cancel = 1, using breakpoints... I think I can pretty definitely say it's not getting called.
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Oct 24, 2011
I don't understand why I only get 1 Message Box in the following case when I run using (CTRL-F5 - Run Without Debugger) in VS2010:
Public Class Form1
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
' Add the event handler for handling UI thread exceptions to the event.
AddHandler Application.ThreadException, AddressOf ThreadExceptionHandler
[code].....
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Jul 30, 2011
Is it possible to determine using VB.NET whether a certain event has any handlers attached to it? I don't own the event, in this particular case I want to know which of the items in a Windows.Forms.MenuStrip have their ToolstripMenuItem.Click event handled.
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Nov 20, 2009
Here is a problem with focus. I have a container(e.g. Panel) which contains some controls. How can I detect the focus event whenever any of the controls in the container has received or lost focus? Do I need to add handler for each control?
example: If all controls in the container have no focus, the container will report as inactive; if one of the controls has focus, the container will report as active.
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Sep 11, 2009
I designing download manager in vb.net. Which supports various file premium hosts[rs,hotfile].... My need is how to get the download handler of IE. When user navigate the link in IE the download link wil be catch by professional application like(dap, idm).... How to achieve in my application? I meant how to get redirected link?
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Nov 2, 2010
I ma using DevExpress controls (which doesnt matter for this example). I have a lookupEdit control and I never want the EditValue_Changed event to fire. Can I use RemoveHandler to do this? If so can someone give me a code example of doing this? Should I put RemoveHandler in the load event of the user control I am creating? Or does it go in the EditValue_Changed event of the lookupControl?
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Oct 28, 2009
When adding a handler I want to be sure adding a unique(single) instance of the delegate. [code]...
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Apr 26, 2010
How I can run handler from one application to another, for example: In application one i have form1 and button. In application two I have also form1 and button. Now how I can run handler for button on form1 in first application from applicaton two?
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Oct 23, 2011
I am trying to add a Handler, but it do not work. what am I missing? I getting this error.
Dim EditingTextBox As New TextBox
Dim Save_Button As New Button
Dim Cancel_Button As New Button
Private Sub Labels_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click
[code]....
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Oct 18, 2009
Where am i going wrong with this line of code? I think its with the (REO/Bank_Owned_Desc)
compute
[code...]
There is no column REO is REO/Bank Owned Desc, I would think it doesnt like the /between REO and Bank.But that is what the column is called in the database.
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Feb 20, 2012
I am having trouble getting my .ASPX page to call my .ASHX file. Does anyone know what I might be leaving out? I have posted my entire .ASHX file below along with a little .aspx.
Imports System.Web
Imports System.Web.Services
Imports System.Data.SqlClient
[Code]....
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