I'm using the PanelManager control, but I can't figure out how to change the panels via a client event.I have a Link label and when clicked, i want it to the panel manager to change to another panel.
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so i have a series of panels that are generated
example:
For i as integer 1 to dt.rows.count
dim subpan as new panel
*Code for creating panel"
Next
the problem is i need to be able to add event handlers to each of them including, click, mouseEnter and mouseLeave but i can't figure out how to index each panel so that they can be accessed and identified. i tried using a property but that didn't seem to work or i was doing it wrong.
I'm trying to make custom ListBox with some graphics. Base is ItemCollection - each item contains Panel, 2x label and 2x picturebox. What each panel have to do:
- Change backcolor on MouseEnter and set color back when MouseLeave occurs.
- On MouseDown(LMB) - Panel stays "selected" - different color.
Problem: I can't access multiple panels at a time(and I need to), just one via sender as in function. Of course, I can do it hacky way, but I want to do it effective and regular. Is ItemCollection the right solution or should I do it just like an array of panels? Also I want them in one "box", ItemCollection is good for it.
Second "problem": I need to make labels "merged" in panels, when i MouseEnter them(labels), background color on that panel sets to my default color. when i MouseClick them(labels), nothing happens (need to "select" parent panel). It can be again fixed with hacky way, just disable labels - but then the colors of labels are unchangeable.
Can someone please help me create a very very simplistic sample page as the chat page included is too coomplete. something as simple as detecting a change in the database and displaying the word "change" on screen in realtime for any client connected.and I tried creating a global.asax file into which I added in the line mentioned in the link above, but it does not seem to like the word "Setup" in the line [code]
View 2 RepliesUltimately, what I want to accomplish is an AJAX-based messaging system. I already have a database table for messages, and an ASPX to add new messages (and declare old messages no longer relevant).
The current messaging system simply polls the server every 15 seconds, and re-pulls the current message set.
What I am looking to do is: On $(document).ready(), register an ajax callback function that listens for a server-side event (e.g., MessagesUpdated) On table insert/update, fire MessagesUpdated server-side.
This way, whenever the table is updated (or new records added), any clients listening know that new data is available and can re-poll the server then.
Ideally, I'd also like to make the new data available as an event argument (to minimize re-polling the db).
I can find references to something like this in other languages, but I cannot find any actual code examples to get me started.
Assuming this is possible to do via .Net, can anyone help get me started on this?
I'm using the 2.0 Framework. Also while I added a VB.Net tag, I can read C# reasonably well, so please feel free to post in either language.
I'm developing an application and when the application is open, I need to handle the mailto protocol. I'm thinking the best way is have the app change the HKEY_CLASSES_ROOTmailtoshellopencommand registry key when it opens and change it back when it closes.
View 2 RepliesAnyone has a quick and dirty sample coding to making this work? Currently, I have server, client with Interface object as intermediate object between the 2. If I declare events in the Interface, then Dim object on client side with "WithEvents", I'll get error when I reach this line:
vb
serverObj = CType(Activator.GetObject(GetType(InterfaceObj), szURI), GetType(InterfaceObj)
Having headaches looking for solutions.
We are creating a Who wants to be a millionaire style game in VB. Our server is pulling information such as questions and answers from a Access Database and sending them to the contestants (Clients). All transfer of information is directly from the server to each client. One of the "Life Lines" we want to use is "Ask a friend", where one client is able to Instant message another client for a short time to get help on the question.
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and advise how I can change this connection string at run time. This is going to be on Client's computer and my application will need to change the name of computer after user enters it.
View 1 RepliesI've got a bunch if labels that are changed as a user inputs data into a form of mine. The Labels are changes with js on the client side. I then after all the submission are in put use a vb script to pull the string values from these labels. The problem is the vb net part is not reading the new values of these labels. Anyway I can get it to read the new values? I have over 40 labels.
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The following code was working the other day. Now it isn't. When I type a character in the textbox the event doesn't fire.
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why the event would just stop firing?
I'm trying to make it so this the cursor will jump to the next textbox after the user enters 1 character.
I am having a requirement in my project where User press '.' in his num pad and he wants the character ',' to be displayed (dats bcoz he is French User).
I tried changing the e.KeyCode but it is a readonly property.
Is there any other way to change the key in key events?
let say i have a function like this
' create filter
Dim colorFilter As New ColorFiltering()
' configure the filter
[code]....
I have a dgv with several DataGridViewComboBoxColumns and when the user selects an item from one of these (product dropdown), i need it to repopulate another combobox (color dropdown) in the dgv for that same row - based on the value i get from the product dropdown. I've tried using the EditingControlShowing event; however, it only fires when I first select the dropdown .....?
Is this the right event I should be using? My other issue is that I don't know how to have the color dropdown re-populate for just the column and row I've selected. Here's my code so far for this event:
Private Sub DataGridView1_EditingControlShowing(ByVal sender As Object, ByVal e As DataGridViewEditingControlShowingEventArgs) Handles DataGridView1.EditingControlShowing
Dim myRowIndex As Integer = 0
[code]....
I can't figure out how to make it so that when a variable reaches a certain value, an event is triggered. For example if I wanted a user's level to change to 2 when he gets 1000 exp.
Dim level as integer
Dim exp as integer
*****What do I put here?*****(when exp reaches 1000)
level = 2
I am trying to calculate the 'Profit' field based on the current record's 'ProjectTotalBillingEstimate' field and the 'ProjectActualCost' field. I want the 'Profit' text field to be calculated every time a record is changed, either via the navigation toolbar or the Project ID drop down box. I tried performing the calculation everytime the 'Product ID' changed but then the values in the fields of the previous record were used. I was wondering if there was an event that I could use the would occur only after the entire contents of a record were loaded.Essentially what I need to happen is when one moves to another project record the profit field needs to be calculated only after all the fields update to the current record. [code]
View 6 Repliesin vb.net , event are automatically change for example i write following code for button1 click event
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
ListBox2.Items.Add(TextBox2.Text)
End Sub
next day i open this project. and double click on button4 to write some other statement but there are two click events for button1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)ListBox2.Items.Add(TextBox2.Text) End Sub
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
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I have been working very hard on figuring this out and just can't understand the events. understand the event process in my code? Or tell me why my image won't switch when it runs the code?
Declarations of Class and members
Partial Public Class Name
Implements IChat
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I have a CollectionChanged Handler Method:
Private Sub LayersChanged(sender As Object, e As Collections.Specialized.NotifyCollectionChangedEventArgs)
If e.ItemCollectionHasNewItems IsNot Nothing Then
[Code]....
I cant call SomethingRelatedToE.excecute because it effects e's collection which causes a runtime error.
However if the LayersChanged method has completed I can then call SomethingRelatedToE.execute from another method without effecting it.
Is there a way for me to directly move to another method after the LayersChanged method has finished, like a Goto function or another solution to this?
Is there any way so I can get event when moving cursor in excel sheet. What I meant by that if cursor is in cell A1 then I move to B1 at that time I want cell change event should fire. At the movement I am able to get event when you change the cell value and press enter then I can get the cell change event.
View 1 RepliesI have created a form to update an access DB table. My issue is that when the text in the text boxes is changed and the form is submitted, the .text values stay the same as they were when the datareader loaded them on the page load event. How can I submit the values that the user updates, not what is already there from page load.[code]...
View 1 RepliesI hhave two modes in my application. Either of the mode is on at any part of time during the running of the application. I have given the user the option to create PicutreBoxes at runtime. Further, I have give two different options to the user.
If the first mode is selected, the Click event for the PictureBox is is pb_clikc and if the second mode is selected, the click event is pb_click_sp.
But the problem is that on the mode select event, I can't specify this line of code since picb is not existing in the current context.
picb.Click += picb_click for Mode1
or
picb.Click += picb_click for Mode2
i want to execute different subs at each tick , is that possible ?
View 1 Repliesi have line like this 1.0 30 Blue (2 17.00 54.0) [2 16.03 52.0] 55611 30275 58571 23514 so i want to check after the Value Blue is that "(" or "[" in side my radio button checked change event.
in RadioButton1_CheckedChanged if the value is "( " the message box should come out and say "The file is already in PPin to Probe pattern" else if the value is "[" then there will be nothing to display.
this is my code Private Sub RadioButton1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged Dim FileContents() As String = IO.File.ReadAllLines("C:\match1.txt")
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I am working on a app that will monitor the registry for changes to [ProviderOrder] in [SYSTEMCurrentControlSetControlNetworkProviderOrder].
I have it 90% done with this
Imports System.Management
Imports Microsoft.Win32
Module Module1
Dim Watcher As ManagementEventWatcher
Dim Hive As RegistryKey = Registry.LocalMachine
[Code] .....
If I change [ProviderOrder.test] the app tells me the value was changed and corrects it. But it does the correction twice (because of UpdateProviderOrder changing the value). I thought that using RemoveHandler and AddHandler would take of that.
I have been reading through Atheists posts in regards to client-server and TCP client/server connection's. But how do i go about writing a program with 1 client and server where the client side creates a text file.Once the server sees there is a text file it connects and downloads it to itself or the client pushes the text file to the server.Once on the server i will read the text file and put its info into a sql db.
View 14 RepliesI've got a variable, BuildDateTimeStamp, would it be possible to add a pre build event to update the value of this variable?code]...
View 3 RepliesI handle the validation in the CellValidating event, and if the cell is invalid display an error message, then cancel the exit of edit mode. However I would also like to erase the content of the cell currently in edit mode.
View 18 Replieswhat is the best way to handle on selection change when the form loads?My problem is, the index change while te form is being loaded, which then in turns tries to run my code.Here is the FormLoad Event, that gets an xml stream from the web, dumps it in a dataset, then bind to datagridview.
Private Sub frmOrders_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Using reader As XmlReader = XmlReader.Create(New StringReader(XMLDoc))
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I want to create a textbox which contents are validated every time the text in it changes. And an image is displayed beside the textbox if it is correct and another image shows up if its not correct. Pretty much like ajax.
Heres the method which I called from the class.
Public Sub read1()
cmd.CommandText = "SELECT * FROM testdb WHERE Name='" & name & "'"
Try
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Problem is, the method seems to be only called once. And the first image that was displayed stays the same even after inputting a data which does not exist in the database. I'm connecting this program to a mysql database using odbc.
