Why when i use MouseMove Property in my control that uses GDI+ screen flashes on refresh for example
Private Sub kontrolla_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs).If e.Button = Windows.Forms.MouseButtons.Left Xor e.Button = Windows.Forms.MouseButtons.Right Then
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I found that if you press F5 or refress from browser window, the last event fires again
example, I have clicked on a button, the button event is carried out normally, but if I refresh the page by pressing F5 key the same event is fired again.
I'm trying to figure out the code for the timer that would allow me to stop the timer after X number of runs through the code. Here's what I have so far:
im tmr_cnt As Integer
tmr_cnt = tmr_cnt + 1
If CInt(boxAns.Text) = CInt(lblnum1.Text) / CInt(lblnum2.Text) Then
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I have created a moving label with this
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The problem I am facing is that while the label is moving, the end of it flashes.
I wrote an application using VB.Net 2008 (Not express edition) and in my main form I have several of it panecontrols and on these panels I have lots of other panels that contain controls.My problem is when I switch between the main (split panels) the controls are flicks(flashes) like they draw themselves for a second or two and after that the form is displayed as it should be
View 10 RepliesI have windows 7 installed on my laptop and visual basic 2005 academic edition as well. I can use VB but when I go to run program, it compiles, links, and executes, but the output screen just shows up for about 1 second. I have tried updating my computer and manually updating VB2005, with no luck.
View 3 RepliesI have a series of MDI child forms I page through to present learning material, all of which are borderless and framed within a main interface form. Each form has its FormBorderStyle set to None, and the form's Text property is blank. I am loading each fom on demand, rather than setting up a stack and pushing one to the front, as this is simpler for me with my limited programming experience.The problem is that as each form is opened/shown, the border briefly flashes in the centre of the ParentForm before docking in the top left corner as programmed. I have even tried coding the Form's Load event to make sure the border is set to None, as shown below:[code]This makes sure there is not a brief delay between the old form closing and the new one showing.
View 3 Repliesi am having a weird issue with VS 2008 when i go to debug my program. When i click on the play button to run the program it flashes real quick and goes back to the VB IDE. No matter how many times i click on the play button it continually flashes and then goes back without displaying my form window or anything.What type of setting would i need to change in order to correct this issue? I've been through most settings in the "my project" section and i do not see anything that could be causing it to do something like this.My older vb apps I've made seem to work just fine when i click the play button on them. Only noticed this problem whenever i go and make a new vb app.
View 4 RepliesI'm using VBE 2008. I have comboboxes in my DataGridView which is databound to a BindingList(of T). For some reason, when the DataGridView is loaded via me adding data to the BindingList, the comboboxes show a value of 0 until they are refreshed. Simply a mouseover will refresh them to the proper value. Why do they not show the proper value when loaded? The non-ComboBox cells show the correct value immediately.
The only thing is that the ComboBoxes reference data from other BindingLists, so they may be slower in getting their data. Do I need to put some sort of delay in before the ComboBoxes draw? Why are they drawing with wrong data in the first place? Alternately, if I can't figure this one out, I may need to refresh the DataGridView after loading. I tried that, but the trouble is, as the data comes in quite quickly, the DataGridView ends up with an annoying "flashing" as it's continually refreshed.
for a data other than today, but is still in the valid range of data provided to the website in the dropdown list.What I come to realise it that if I load this webpage in a browser for the first time, it would still retrieve the current day's data, but if I press F5 to refresh it, I get the data for the date I want
View 1 RepliesIs it a good idea to always use
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AllDefinitions.UserProfileseverytime?I had a problem when the list was refreshed, and I set the datasource again, the listbox showed Definitions.UserProfiles instead of the display name that I set.when I changed to always using the bindingsource, everything worked fine.
This is real strange. On my home computer I get the refreshed web page but on my office computer I get a cached copy. I should get a refreshed page every time right?
Private Sub btnAutoLoad_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAutoLoad.Click
Dim MyBrowser As New WebBrowser
Dim MyString As String
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i have a listview with few records im able to delete the records from the listview but after deleting the record the listview is not getting refreshed [Code]
View 4 RepliesI have a banner ad on my site, using an asp.net Image control. I want to display a new ad every time the page is refreshed.
View 1 Replieswhat event fires when individual textboxes that are bound to a data source using the properties pane gets refreshed? I wish to use this event to populate a few textboxes that are not bound.
View 1 Repliesi am new at everything VB.net/ASP.net. I have an ASCX.vb page that lets the user choose someone from a table. Once they do select someone, the page reloads with that persons information into another table below that one where they can submit an order for that person or remove that person. Problem being is that i wanted to store the users ID that are selected but it seems that everytime the page reloads to show an update, it dim's my array again back to default. This is my code once they choose a user:
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I have created a web application in that application i have added two folder. one is admin folder and under admin i have added a upload folder. In upload folder i have three different audio's. And also i have imported DLL for Windows media player. Through this media player im able to play the audios in local host.By giving Direct path like MediaPlayer1.Filename="C:Usersamwaka.mp3".But when i host the website im getting problem the page is getting refreshed but the audio is not getting played.I have tried this path Server.Mappath("..uploadwaka.mp3") and Server. Mappath ("~adminup loadwaka.mp3)the above both paths are not working when i host the website please reply.
View 1 RepliesEach time my webpage is loaded it runs a routine in the page_load event of the page behind which increments a viewcount by 1.
The problem I have is that the routine runs even if use refresh to reload the page.
How do I stop this routine from running if the page has been viewed by a particular user in their current session? [code]...
Can a data grid in another open form be refreshed by calling a sub routine? This app has a form with 2 data grids. When the user double click on one of the grids another form is opened that shows data details. After the user changes the details the user clicks a save button. We have placed this code in the Closing event of the the details form.
Private Sub FormParents_FormClosing(sender As System.Object, e As System.Windows.Forms.FormClosingEventArgs) Handles MyBase.FormClosing
FormParentsAndStudents.RefreshDataGrids()
End Sub
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Can you tell us what additional coding is needed to refresh this data or if we are using the incorrect place to call this code from within the details form?
that my code:
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Button ID="Button1" runat="Server" Text="Refresh" OnClick="Button1_Click" />
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
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The problem im having is that I have a table that when a user click on a button it adds a row to the table via javascript, which works fine. The problem is that if a user need to update other data the user click another button which refreshes the page and all rows the user created in the table are deleted. My question is what can I do to make the rows not to be deleted once the page is refreshed? I know some might think, just not refresh the page, but there is to much data that has to be displayed and a new query has to be generated to grab the data.
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Here's my situation: I have a control with motion graphics (for the sake of simplicity, a 'video player' control) in my project. Think of a PictureBox with constantly-changing images. In front of this will sit a second control (such as a second PictureBox of the same dimensions). The topmost PictureBox will be drawn to in its Paint event.
I need to draw very few elements, and the bottom control is updated much more frequently than I need for this drawing. So these elements are drawn to the topmost control. Think of a news broadcast, where they have live video in the background, with a news channel logo, news ticker, and sometimes gradient visible in front.
I'm trying to create that 'foreground' control, and the closest I believe I have gotten so far is the following:
Imports System.Drawing
Imports System.Drawing.Imaging
Imports System.Drawing.Drawing2D
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The 'Opacity' property in the code above is a sort of "scaling factor." The image drawn to the top control may, in different parts of the image, have any alpha value from full transparent to a full 255. This 'Opacity' property is applied to the entire image being drawn, scaling the alpha values of each pixel.
See the following pictures for description:
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I want to set control position relative to other control so when i make one control hide then other control move up like this.
View 1 RepliesIm doing a mini project and i need to display an image in picture box control when a cell clicked in datagrid view control .the image is linked through the database ms access and im using vb.net frame work.
View 2 RepliesI have a requirement for a new application development where I must present some information to the user for selection via drag and drop. VB offers the TreeView control which would work nice, however the user does not like the Treeview control's presentation. The user wants a control that work similar to the Mac's Finder control while in column view.
Apple's Mac Finder Control works similar to window's treeview. Finder has a nifty view capability that my users would like in some new development that is being done. The finder supports a "column" view. Similar to the treeview, it starts out in a root list. The difference being, when a user makes a selection and clicks on a node, the node doesn't expand, the sub nodes appear on the pane to the right of the list. Clicking on a sub node, will cause the pane to split again and the items within that sub node appear
to the right again.
This will happen again and again with the left pane getting narrower as the user drives deeper into the sub nodes. That is what I am trying to replicate. Obviously, once the user reaches the base list of items, we have to support drag and drop capability. Does anyone know of a control for VB.NET that work similar to the Mac's Finder control?
I am upgrading user control from vb6 to vb.net.In the vb6 application I am loading 3000 labels using a label control array.In vb.net I am doing same but it's taking too much time to load.In vb6 it's taking 1-2 seconds, but in vb.net it's taking 30-40 seconds for same work. Why does it take too much time in vb.net for same work?Code is given below, here Led is the label control array.
For l = 1 To 3000
Led.Load(ledCounter)
ColLed.Add(Led(ledCounter))
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I have a UserControl that contains other controls that I would like to be able to rearrange or resize at design time. So I have a custom designer for the UserControl that inherits from System.Windows.Forms.Design.ParentControlDesigner, and I call EnableDesignMode on the child controls from within the designer. That way, at design time, I can drag and drop the child controls to move them, or resize them. But I can also drag and drop the child controls somewhere else on the form that is outside of the original UserControl. Is there a way I can limit the child controls from being moved or resized outside the UserControl?
View 1 RepliesI've created my own ascx control with button inside it. Now I'm using this control inside other control. (In my case it is a webpart). What I would like to do is program button.click logic from my custom control inside webpart
View 4 RepliesI am trying to use the Web Browser control in my vb .net user control. I am using VS 2008. Finally, I will be calling my assembly (.dll) from a web page. I wanted to display the usercontrol with the web browser control inside this web page. The problem is I cannot proceed since the Web browser control cannot be called from a partially trusted assembly. Using VS 2008 I have created a strong name for my class, also added the <Assembly: AllowPartiallyTrustedCallers()> to the AssemblyInfo. But still the web browser control cannot be seen in my web page. Do you how I can make my assembly fully trusted so that it can access web browser control? If you have used web browser control, can you confirm if this step is really required?!
View 2 RepliesI am in the process of designing a computer control program to control a HF communications receiver (radio), and have found a problem with the Serial port. I am using VB Express Edition 2008. This module of the program is supposed to take an input string from another part of the program, format it, break it into 4 bytes, and send it to the radio in hex form via COM port 1. The problem comes in when you try to enter a frequency with an 8 or a 9 in it. The 8 or 9 is usually replaced by 45, ex.-input 9900, receiver tune 4545. The exact same thing happens with 8's, input 8800 and receiver tune 4545. All other numbers other than 8 or 9 work fine. The strange part of it is that sometimes the 8's and 9's work, and work correctly. For instance, 900, 1900, 2900, 3900, 4900, 5900, 6900, and 7900 all work correctly. This led me to believe that is may only be when the 8 or 9 is in the first position, but that is not the case, it also shows up in other positions as well. All other frequencies that do not have 8 or 9 in them also work. I ran into this same problem with VB Express 2005, and worked on it for weeks before giving up and going back to VB6.0. This same module (with exception of the port open command) runs flawlessly under VB6. I have even tried importing the MSCOMM control from VB6, but it gives the same results. In de-bugging mode, all of the inputs, decimal and hex seem to be correct, so the problem must come in after you click the command button, but before it leaves the COM port.
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