StatusBar Refresh Not Calling DrawItem Event?
Apr 16, 2010I have the following VB code snippet:
Try
' blah blah blah removed
Me._Message = "hello"
[code]....
I have the following VB code snippet:
Try
' blah blah blah removed
Me._Message = "hello"
[code]....
I'm attempting to redraw the DisplayMember to red if certain criteria are metSo far I have (using a dynamic form, and a dynamic panel)
Dim RevenueNominalLB As New ListBox
With RevenueNominalLB
.Name = "RevenueNominalLB"
[code].....
ATM I'm trying to color individual items on my combobox. While reading stuff I googled, it seems that the only way to do this is through the DrawItem event.My question is, will the draw item be 'called' when i assign text to the combo box? combobox.text = "string"
View 18 RepliesI'm using a TabControl and have overridden the DrawItem event to produce my own background and foreground colors for the header text. It looks good but there's still grey color around each header. I thought maybe the Padding property could be set to (0,0) but that seemed to have no effect.
View 2 RepliesI've read thru Iceplug's tutorial on control arrays and got it working. I tried to add a new event by basically copying his click event code and calling it a doubleclick event. I used the proper addhandler and assigned the correct name to my sub. I have the click event changing the background color to blue and the doubleclick event changing the background color to green. The background color does not change to green. Why?
Heres the tutorial with my new code encased in asterisks ...
Code:
Imports System
Imports System.Windows.Forms
Public Class form1
[CODE]...
I have created a custom ToolStripProgressBar. It is basically a class inherited from ToolStripStatusLabel, and i paint the 'progress' bar myself (just a simple rectangle). I have tried creating a custom ToolStripProgressBar using different methods including inheriting from both ProgressBar, ToolStripProgressBar and ToolStripControlHost. I always ran into difficulties doing in this way. Inheriting from ToolStripStatusLabel works well, but with one issue...
In order to have the progress bar update in the statusbar, i have to call StatusStrip.Refresh. Trouble is, adds a huge overhead to the drawing of the progress bar graphics. Simply calling the invalidate method of my ToolStripStatusLabel does not seem to render anything to the screen. how to have my graphics draw without calling the refresh method?
I have a Web Application that I need to refresh after a certain event. In my VB code behind, how can I refresh the page?
View 2 RepliesI'm using a button click to move users from one list box to another. Is there a way to 'refresh' the listboxes at the end of the click event?
View 5 RepliesEvery time I refresh the browser, my button's event handler fires again. How do you prevent this?
View 2 RepliesI use the following code in a Sub called "updateDb" to accept changes back to the Db, etc. in the .CellEndEdit event from a DataGridView:
Try
' Write changes back to actual .mdb file
' Accept changes from DataGridView object
Me.Validate()
[code]....
Which is the most appropriate event to handle for this task? Right now I'm calling the updatedDb sub when the .CellEndEdit event triggers and when the .UserAddedRows event triggers.
sub I use on all forms in my app I would like to put in one central place (of course right). in vb.net I put this sub in a module it has a "Handles tabcontrol1.Drawitem" - I get an error saying handle requires with events variable defined in containing type or one of its base types.also when I refer to tabcontrol1 in a module it wants to know which form.. Can I use sender to define current calling form?
sub
Private Sub TabControl1_DrawItem(ByVal sender As Object, ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles TabControl1.DrawItem
Dim g As Graphics = e.Graphics
Dim tp As TabPage = sender.TabControl1.TabPages(e.Index)
Dim br As Brush
[code]....
I want to add cross button image on the right hand side of tabPage. I m creating tabpages at Runtime.Mine code is added image to the left...I want to add it to the right....I m also adding text to the tabPage...
& second Probs is dat..On button click suppose i add the first tab Page,Image is aded to the first Tab Page...When i click on button to create the second Tab,Image & text of First Tab Page is clear & so on..
[Code]...
I'm making a webbrowser that automatically refreshes till a link changes, then it makes some procedures.
I know that refresh methods dont fire the documentcomplete event so what could be a solution for my situation?
I have a web site that I want to check for a html link modification, for that I need to refresh it every 30 seconds.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
WebBrowser.Navigate("www.google.com")
[Code]....
I have a treeview with several nodes. One of the nodes opens a form when double clicked:
MyTreeView_NodeMouseDoubleClick
dim MyForm as MyFormClass
MyForm.Show()
[code]....
I have added a handler in my code for the bindingsource currentchanged event: I have populated a datagridview. AddHandler PeopleBindingSource.CurrentChanged, AddressOf ChangeHandler then on the ChangeHandler Sub I populate an HTML report. However I don't think this is the best event to handle this. I have to datepickers on my forma as well. So say I click on a row in my dgv, that persons report loads. Then I change the start date on my datepicker,
Now i want to click on that row again to refresh the data, but since the currentchanged event doesn't fire the data won't refresh. I have to click on another row then click on the row I want to view in order for the event to fire. which event is best to do this?
Using the visual part of VB I can create 'event' procedures. eg. if I double click on a button on the form it will take me to the code window and insert a procedure as follows:
[Code]...
How can I accomplished the following, but in Visual Basic .Net 2005:
Private Sub Text1_KeyDown(KeyCode as Integer, Shift as Integer)
If KeyCode = 13 Then
Text1.Text = "Hello"
End If
End Sub
[Code]...
I have the following event.
Private Sub txtOperationCode_Keydown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles txtOperationCode.KeyDown, cmdEllipsis.KeyDown
Dim oOperation As COperationOutputTypeBS
[code]....
i wanted that on the form that i am calling in the event :frmSearchOperationCodes I will call txtOperationCode_Keydown event because I wanted that if txtOperationCode_Keydown is executed something will happen upon showing the other form.i have a textboxt, When i encoded a character on the textboxt and the user will press tab or enter automatically a form will be shown with a datagridview showing all items related to the character encoded on the textbox.
I am calling a javascript in the onclick event in ASP.NET sourcecode, as follows:
onclick='open popuplistitems("ct100$contentplaceholder..........")
how to do the same in vb.net ?
Im trying to create a webform that is a representation of a paper questionnaire that has 14 questions with yes/no answers. If an answer is no, then you must provide information as to why in 3 separate textboxes and store the information only when a user clicks no.I also have 4 drop down lists that are chosen before the user answers the first question that also need to be stored with the textboxes, but the ddl's value does not change after the user starts. Right now I have 3 textboxes and a submit button for each of the 14 questions that are hidden until a user hits a "no" button, in which I change the visible property of all of them and the user then types in their reasons and submits the answer. I am currently doing this for each question and i hide/disable the textboxes and button after submitted.
My problem is that for each event on the 14 submit button's is that I'm forced to open & close an sql connection and insert the values. I know there has to be a way to simply this some so that I dont have 14 different groups of the same code. I would also like a way to eliminate having 40 textboxes on a page lol, because the idea was to have a pop up box or something open that would let the user submit it and then return to the question instead of hiding textboxes, but the user has to see all 14 questions at page load so if you got an answer to that one then that might solve my original question.
I am trying to call the DocumentCompleted event from a button click but am having problems.Here is my Document Completed event:
Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs)
TextBox2.Text = WebBrowser1.Url.ToString()
[code].....
I have built a customized control inheriting the maskedtextbox in VB.NET. But i face some issues in the calling of events. For eg. if there is control named : Control1 and in the designer file i set the text property of the same to some value (Control1.Text = "test"), then the text change property is called. But i need to call the event only when the text property is changed during the run time (not while initializing in the designer file). Is there anyway to trigger the text change event only when the text property
is changed in files other than the designer one.
see..the below message "HI" is displaying twice if i click any of the radion button in groupbox...how can i make it calling one time? Private Sub RadioButton_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles _
[Code]...
I made a notepad using vb 2008 and I am facing a problem who I'd make the Statusbar.
Note: I am using the Textbox to read and write text?
I have an ASP.NET 2.0 that contains a dropdown list used to filter records based on a group number. For example, if the dropdown list selectedvalue = 3, only records containing a 3 in the group number column of the table will display. This is working perfectly. However, when the page first displays the default value is 1, and the records from group 1 do NOT display unless I trigger the dropdown list event. I am trying to get the records to display for group 1 when the page first opens to avoid having to use the dropdown when the page loads. The "drop down list control" filters records in a "data list" control.
I am thinking of writing a piece of VB.NET code to automatically call the Drop Down List's SelectIndexChanged event on the page so the user does not have to do it. how do I call that event from the "On Page Load" or, is there a better way to do this?
While studying sample code for vb.net, I put the code in a button click event and need to click the button to see the results. It would be nice to have this code run by adding Button1_Click() to save time but I get an error because of the parameters needed for the Click event.
I get a suggested "Generate Method Stub for Button click event" which is probably a clue to the problem if I had any idea what that means.
I think I have a timing issue. On the trigger of an event I call a function to update a value:
Private Sub t0_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles t0.Click
Input.ppProperty = "blank"
UpdateRecord("Hey", Input.ppProperty)
MsgBox(Input.ppProperty)
End Sub
[Code] .....
Notice the difference, the property does not update until the function is completely finished.
Why?
I'm developing this procedure using a timer object. The thing is the procedure is not in the timer's event procedure but I want it to depend on the timer's interval when executing, it's just not calling the timer procedure. How can u declare objects and use their event procedures in code.
View 2 RepliesI have a question regarding VB.Net and Object-oriented programming.
I have a solution consisting of two projects.
One project is dedicated to the logic of the application, and one is only to show the Winforms form, and to reflect changes made in the logics project. In other words, when an array filled with various attributes residing in the logics project gets changed, then these changes should be reflected on the form (not that strange in theory).
Here comes the - for me - really tricky part:
I have created user controls, and these are residing in the forms project and placed on the aplication's form. When I click on any one of them, their respective onclick sub gets called okey, but how can I send a message to the logics project from their onclick subs? Basically, I'm not sure on what should be private or not, or possibly how to call the other project correctly. In any case, I can't get it to work.
To sum up: What I need is a line of code calling a class in another project, and someone telling me what should be private, static etc.
This is a working example which draws a rectangle on different location every timer_tick and I fully understand now how it's working:
Code:
Dim i, timercount As Integer
Private Sub PictureBox1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
[code]....
Now I'm looking for a way to draw this rectangles without refreshing them every single tick. I've just started using Visual Basic and I really don't know how to call/raise PictureBox1_Paint event every timer_tick or how to store drawing data in member variables?