Implementing LostFocus Listview Control Equivalent For Web?
Apr 11, 2011
Background: I have a winForm app that registers a user in the database based on the information provided, auto-generates a random password and username, and e-mails the user a link to take an application based on the marketing company selected.
Problem:
When the user selects the lbCarrier(s), the Bundles don't show up in the listbox b/c the lostfocus feature doesn't work for asp.net. What code can I use to auto-populate the Bundles listbox based on what is selected in lbCarrier listbox for ASP.NET.
Code from default.aspx.vb:
Private Sub lbCarriers_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles lbCarriers.LostFocus
Dim splt() As String
Is it possible to automatically insert a Code Snippet when an interface is implemented? If so, how do you do it? I am looking for something similar to when you implement IDispoable in VB.[code]This will be used by web forms when transfering parameters from one page to the next using Server.Transfer
I am currently designing my own web browser based on Microsofts Web Browser controlI am using Visual Basic.net 2003 with the .Net Framework 1.1My problem is i can't get it to work, and i am getting errors in code for reasons i just can't figure out as my code seems logical:
Public Class Form1 Inherits System.Windows.Forms.Form Implements WebBrowserAPI.IServiceProvider Implements WebBrowserAPI.IInternetSecurityManagerI also get errors trying to implement these statements as wellPublic Sub New() MyBase.New() ' InitializeComponent() ' InitializeComponent() ' Microsoft Web Browser ' ActiveX Dim ocx As
However, checking that value it returns the name instead of the index. While the VB6 code returns the value of 2311 (which is what it needs to return)
When i add items to the listview i do this:
Item = payReq.Items.Add(rsPayRequests.Fields("userid").Value) Item.SubItems.Insert(1, New System.Windows.Forms.ListViewItem.ListViewSubItem(Nothing,
[Code]...
But that does not work with my listview in .net since that above is a listbox and not a listview. Is there an equivalent in .net for the listbox to have a custom index?
I am trying to make a listview custom control based on the standard listview control that will allow me to drag a column header outside the standard listview control and drop it on a panel. I plan to use the drop event to determine which column I should group by view on.
However, checking that value it returns the name instead of the index. While the VB6 code returns the value of 2311 (which is what it needs to return)
[Code]...
But that does not work with my listview in .net since that above is a listbox and not a listview. Is there an equivalent in .net for the listbox to have a custom index?
I have 3 forms, one frmMain - main form, second is frmUserType- childform, and the last frmCreateUserType. In the main form I have a menu item to open my frmUserType, In this form I have a button to open another form which is my frmCreateUserType, In this form I have a button to add records then update the listview in frmUserType. The problem is the listview will not access with my add button control in frmCreateUserType. I tried not to used mdiparent declaration for my frmMain and frmUserType as children and it works, so meaning that the problem is showing my frmUserType as childform?I am using vb.net 2008
Code to open my second form (frmUserType)
[CODE]...........
Code for my add button to update the listview in frmUserType
I'm using ListView control, with SmallIcons style in VB.NET. Icons are loaded fine, but when I start to scroll ListView down or up from scrollbar (clicking from arrows), rowheight drops to about half from normal in next 20-30 rows below/above upper/bottom row (depends from the scrolling position). After 1-2 seconds, ListView is "refreshed" and scrolling continues normally. When focus in on the ListView and I'm moving up/down with arrow keys or PageUp/PageDown, everything is normal. Any suggestions, what is happening? SmallIcons size is 16 * 16. Is it compulsory to set "Blank icon" with SmallIcon size to all rows, when adding them or what? Wasn't like that in VB6, how is it in VB.NET?
I have been able to associate a listview control with an imageview control to display images. There are a couple of things, I would like to do.
1> How do I display the image in the second column? 2> How do I increase the size of the image getting displayed? My images are all 48 x 48 (pixels), but they keep shrinking.
I want to assign a string value to a variable in the DataGridView LostFocus event. I found that I can't just do variable = "string value, it will give me the "Unable to cast object of type 'system.eventargs' to type 'system.windows.forms.datagridviewcelleventargs'" error.
The function created by double-clicking on the datagridview is:
Private Sub DataGridViewInvoice_LostFocus(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridViewInvoice.LostFocus
I have two richtextboxes, richtextbox1 and richtextbox2 on top of richtextbox1 with richtextbox2.visible = false on form load. Whatever is input in richtextbox1 is placed in an array when rictextbox1 loses focus. Now I have a checkbox that when enabled, hides richtextbox1 and shows richtextbox2. On the first time richtextbox2 is shown, i want it to display the contents of richtextbox1. This is achieved by setting a boolean flag (firsttime=true) on form load, then in the checkbox code if firsttime = true, it displays content of richtextbox1 and sets firsttime to false.
Have a project which, in one place, has a form with a number of textboxes on it to receive user input. My intention is that, when user tabs out of one box into the next in the sequence, a checking subroutine is called via the textbox.lostfocus event. When I run the app, which this procedure is called by tabbing out of, say, txtTitle without entering any data, I get the Msgbox message, but it refers to the next textbox (txtFName).
It would appear that the focus moves into the next textbox before the lostfocus event is dealt with. Consequently, when the Msgbox opens, it takes the focus away from the next textbox and fires its lostfocus even, which is processed. OK-ing the warning here causes the initial lostfocus event to be processed and the Msgbox shows again. Exiting the sub for the second time leaves the focus in the second textbox. If I then use the mouse to move the focus back to the first box, I fire yet another lostfocus event for the second textbox, etc, etc
How can I trap the lostfocus event and deal with it BEFORE the focus moves into a subsequent control?
With a listbox visible, I have clicked on the windows form hoping to use the listbox.lostfocus event to let me hide the listbox - but the event does not occur. I suppose I can use the form.click event to hide the listbox, but how would I get the form to accept focus?
the scenario is the following: I have a textbox ,next to it a button. The user types a value in the textbox, he presses tab, I search this value in the database in the LostFocus event, if there is no match, a browse form shows and the user can select the desired value. After closing the browse form, the focus goes to the next textbox control (and exactly this I want to prevent). The user can click the button next to textbox to choose a value (the browser form appears), but in this case, after closing the form, the focus remains on the textbox control, because before clicking the button, the focus was on it.
So, my question: how can I disable the LostFocus event? Ok, I figured it out: I must use the validating event. It works. But in this case, if I close the form, the event fires up. How can I disable this?
I have a class library in which i have created a simple new application with a form and added AX webbrowser control on it. In order to apply events on popup of webapplication shown in webbrowser (or to detect whether a pop-up has opend), i am using LostFocus event on webbrowser control, it was working fine till now.But after i reset my IE settings (Internet options->Advance->Reset) the event stopped working. I am using IE9 and the class library is developed in VB.NET (VS 2010).
I have some richtextboxes which display contents of a jagged array. When the RTB loses focus, contents of the RTB are placed in the array (so new entries in rtb are updated in the array). This works OK with moderate numbers (for example jagged array of type (200)(){}) but in a situation where the array is (1500)(){} the rtb takes approx 3-4 seconds to reload when it loses focus. I was thinking of eliminating some lostfocus of triggering with this logic
On RTB LostFocus If 'nothing was changed in the RTB' Then Return
[code]....
Nothing was changed in the RTB means that the user Focused in the RTB, scrolled around, but did not change the content in any way. How would I achieve that codewise? In addition, is there a better way to keep the RTB updated with it's corresponding jagged array from LostFocus?
So I have a LostFocus handler for my TextBox, and it gets called whenever I press "m", "o", or "-". Why is that? [Code] Is all that's there. I thought that I might have access keys or something interfering, but I would have to be pressing Alt, "-" wouldn't work, and there's also the fact that I have no access keys on the form. What's happening?
I am finding it strange that the lostfocus event is always executed once when I launched my application. in my lostfocus event, I have some code that queries the db based on the textbox value. It is supposed to be 13 characters. So when i launched my app and presses the first character in the textbox, it is givin an error. When i debug the application, I found out that the lostfocus event is getting called once when i start the application.
I just added a gotfocus and lostfocus handler for all of my textboxes. Below is my routines to call on gotfocus/lostfocus.
[Code]...
Now, my issue is that this works great if you use the mouse and click around in the textboxes. However, if you hit the TAB key to move around on the screen, the LostFocus event doesn't seem to work. All of my textboxes backcolor remains lightblue. What did I do wrong? What do I need to do to fix this problem?
I have the following code and I can't get the lost focus to work.
Private Sub txtSpeed_KeyDown(ByVal eventSender As System.Object, ByVal eventArgs As System.Windows.Forms.KeyEventArgs) Handles txtSpeed.KeyDown, txtSpeed.LostFocus
