Combo Box Fires Twice?

Nov 17, 2010

I am using a combo box on a form in vb net 2008. I would like the user to be able to either tab to the control and then select an

item OR the user could click on the combo box and then select the item.

unfortunately it fires twice when the user clicks on the control. This is before any items are selected. I have tried placing it in mouse down , focus , key down etc etc.

It does not fire twice for the enter event so I tried to use that alone, but then there is no dropping down of the combo box when the user clicks on the control. Is there a way to release the combo box enter event on the mouse click event?

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Cancel Fires But Other Code Also Fires When A Click Event Occurs?

Mar 9, 2012

A form has many buttons. One of those buttons contains code to update the TableAdapterManager. One of the many TextBox controls has code in a Validating event handler. There is code to make sure a US phone number is formatted properly.If the user tabs out of the TextBox the Validating code works perfectly and show a message to the user if the phone number is not properly formatted and the focus is place in the offending TextBox.If the user clicks on a button that has code to update the TableAdapterManager the Validating code fires but instead of focus remaining on the offending TextBox, the code in the button Click handler also fires.

I would like to stop the button code from firing.Here is the code for the Validating event of the TextBox:

Private Sub TextBoxPrimaryPhone_Validating(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles TextBoxPrimaryPhone.Validating
' Make sure the phone is formatted correctly.

[code]....

What additional coding to I need to include so focus remains on the TextBox?

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Mar 4, 2010

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I have something like

[Code]...

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Is there an event in the DS that fires when data changes? If so, I believe I can set a flag that can be checked later. If not, is there any other way to track that a DS has changed after the initial XML load? Would reloading the XML into a cloned DS and comparing the two work? Seems like a waste of "time", especially with large XML files, but if it's the only way.

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Webbrowser Click Fires Twice

Dec 4, 2009

In VS2005 I am using click on some elements in a webbrowser document to perform certain functions, eg print or open MS Paint but for some reason all the mouse events fire twice. A second click on the same element might be intentional so I can't just bypass code if the ID is the same as last time. There are no other calls of Document_Click anywhere in the project.[code]I supposes I could stick a timer on it and ignore any within 1s say but cheers for any more elegant solutions.

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I have an update statement under RowLeave event of my datagridview. Before I update it I need to validate the cell if there is an empty value. But whenever I moved the focus to another row, RowLeave is called first before CellLeave/CellValidating.Is there another way of validating the cell when leaving a row?

Note: Leaving a cell in the same row is not a problem.

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Asp.net - ItemCommand Fires Before ItemDataBound On PostBack?

Nov 5, 2011

This is just stupid. I've been at this for over 5 hours and can't figure out why my freaking commands aren't firing properly. The only ones that fire properly are the Built-in commands "Edit" & "Cancel"

<asp:ListView ID="NewProduct" runat="server" DataSourceID="NewProductSDS" DataKeyNames="ID">
<ItemTemplate>
<div>
<asp:LinkButton ID="accept" runat="server" CommandName="Accept" />
<asp:LinkButton ID="edit" runat="server" CommandName="Edit" />

[Code]...

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Sep 20, 2011

I am trying to unit test for data being input into a textbox (txtPrice). If it is not numeric, it throws a messagebox stating that the input must be numeric. However, when I unit test, I can't figure out why my test fires the message box twice.THis is my (simple) unit test:

Public Sub txtBoxes_LeaveTest()
Dim target As frmEstimate_Accessor = New frmEstimate_Accessor ' TODO: Initialize to an appropriate value
Dim sender As Object = Nothing ' TODO: Initialize to an appropriate value[code].....

My understanding is that for unit testing, you declare the sender, and (in this case) set the sender to some value that will trip the message box. 112L should do this on the leave event. I then write my expected, which in this case is 112L, fire the event, and then get the actual out of the text box. I then Assert.AreEqual to ensure the expected and actual are the same.

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Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Label1.Location.X = Label1.Location.X + 10
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"Expression is a value and therefore cannot be the target of an assignment."

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[Code]...

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[Code]...

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[Code]....

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Select Case TabControl_Lanes.SelectedTab.Name
Case tp_create_Lanes.Name
depotName = CStr(M8DepotsBindingSource.Current("depotName"))
depotID = CInt(M8DepotsBindingSource.Current("depotID"))
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Jul 7, 2010

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Jquery - Delay A ASP.NET AutoPostBack So JavaScript Fires First?

Mar 2, 2010

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Winforms - .net Activated Fires Multiple Times?

Sep 22, 2011

I want to update a database based on the form that is currently activated. I had originally decided to use the GotFocus event. However I now understand that will not work as the form has controls on it. So I then thought I wouls use the activated event. This works but seems to fire multiple times. I put in the following code:

Private Sub frmNewTicket_Activated(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Activated
MsgBox("Form Activated")
End Sub

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Pick A Word In Combo Box A That Has Specific Words/phrases In Combo Box B Show?

Feb 24, 2009

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Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' fills the combo boxes with values
Me.xGeneralComboBox.Items.Add("Soda")
Me.xGeneralComboBox.Items.Add("Juice")

[code]....

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Feb 21, 2012

How to use a databound combo box to display one field in the drop down, and another as the combo box text on roll up? Using VS 2005... For example, I have a datatable that has 2 fields. One called "ShortDesc" and one called "LongDesc". I want to be able to see the "LongDesc" column values in the drop down on the combo box. When I make a selection, I want the text in the combo box to read the corresponding "ShortDesc" value.

[Code]...

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One Combo Box Fills Another And Hits The Second Combo Box's Lost Focus Event?

Jun 7, 2012

Combo box 2 is filled based on a selection made in combo box 1 and a listview is populated based on the selection made in combo box 2.When the LostFocus event completes in combo box 1, it hits the LostFocus event in Combo Box 2 but it shouldn't. How do I prevent this from happening or if I can't prevent it, how do I work around it? The following is the code used.

Private Sub cboCategory_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles cboCategory.LostFocus

[code].....

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IDE :: Windows Forms Control Leave Event Fires More Than Once?

Jul 11, 2009

The leave event fires twice in this example. Tab order for the form controls is set to combobox1, button1, button3 Private Sub ComboBox1_Leave(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.Leave

[Code]...

if I enter 'A' in the combobox1 then combobox1 leave event will fire twice any other entry is Ok since the next control to get focus is button2 (in the normal tab order).It seems that if I try to skip the next control (based on the tab order set for the form), the leave event fires twice.

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VS 2010 Enter On Button Fires Keyup On Next Control

Dec 27, 2011

I have focus on button and when I press Enter key button_click event is executed. At the end of button_click I pass focus to text filed:


Private Sub btnAddPos_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDodajPoz.Click
try

[Code]....

And every time I press Enter on button txtNewItemID_KeyUp is triggered. And i don't want that. I just want txt field to get focus when button is pressed (with mouse, enter key, Alt+key combination).

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