I'm attempting to redraw the DisplayMember to red if certain criteria are met So far I have (using a dynamic form, and a dynamic panel)
Dim RevenueNominalLB As New ListBox
With RevenueNominalLB
.Name = "RevenueNominalLB"
[code]....
1. The DisplayMember is showing as 'System.Data.DataRowView'
2. Can't find a way to get the selected row to paint in white not black
In XP when you go to shut down, windows fades to black and white. I think that's a nice effect.How would i go about fading a color image (image box stretched - like a screen saver) to black and white...?
Has this ever been done? Is their a code snippet that already exsists?
i need a windows program (on visual basic express) to convert a list of images to black and white. then to send it to a microcontroller via ethernet. i dont know anything about vb at the moment so simple explanations and code would be great. in the meantime i will try learning vb. but i need this program quick.
View 3 RepliesChange everything on screen thats black to white and vice versa??
View 3 RepliesI have a color printer but I would like to force it to print in black and white (monochrome).I tried to use PageSettings.Color = false but it doesn't work.I tried to make my code as simple as possible and put PageSettings.Color = false at various places but it still doesn't work.[code]
View 1 RepliesI been playing around with some code I found on internet and I am probably almost where I need to be. Using the printdocument I am able to get the active form in my project to print. That works fine. MY nextr issue was to get the form to print so that it is Black & white. No shading etc.. So I found a routine on internet that will take image and turn to B&W. Problem: IF a text box fields background color is too dark then the entire box shows up in black. If a text box field data is Selected it also is too dark and comes out white.her is code I found for turnign to B&W
Public Function PureBW(ByVal image As System.Drawing.Bitmap, Optional ByVal Mode As BWMode = BWMode.By_Lightness, Optional ByVal tolerance As Single = 0) As System.Drawing.Bitmap
Dim x As Integer
[code].....
Is there a way to convert an Image to Black and white before displaying it in a PictureBox? Or is there a way to make a PictureBox display color images in black and white?
View 1 RepliesChange everything on screen thats black to white and vice versa?
View 5 RepliesHe wanted to know how they can do to convert a portion of the form that you see only blue or black and white. I mean, the user presses a button and all that is in the form sees only blue or black and white only.
View 1 RepliesI am using the cursor converter to set both
dim cCon as cursorconverter = new cursorconverter
me.cursor = cursorconverter.ConvertFrom(myCursor.cur)
and
windows.forms.cursor.current = cursorconverter.ConvertFrom(myCursor.cur)
the reason for setting both is that otherwise the cursor will not always have the desired appearance. I know that cursors can be rendered in color, like 3D-Bronze, windows animated, hands and variations.
I use crystal reports, vb visual studio 2008 to print my reports. I read an Image from SQL (which is a barcode) and I want to print this bar code in Black & white. Below is the code to print my report. What I want to have in my code is ..."If the default printer is a color printer then use black & white".
[Code]...
How does the CheckBox control draw that black check mark in the white box? I can't install .Net Reflector or anything here on my work machine so could someone post the code (vb.net or c# is fine with me)?
Or if anyone knows how to do it (I have an 8x8 Bitmap object I'm drawing on already) I'd like a hand since my math isn't working out correctly[code]...
i am working on chatting application in which i developed a white board having pencil and and eraser using JQuery. Now i want to show this board to the online users accessing this page. What would be the best approach to so?
View 1 RepliesIm looking for a class or code in VB.NET that can convert a black and white image in JPEG format to a grayscale TIFF format.
View 2 RepliesI have a htpc project that I am working on. The main program loads dll plugins which are basically other win forms. On each of these forms, including the main program, I use a picturebox (a double buffered picturebox) for the background image and then draw everything on it by hand. Whenever I load the form from the dll and show it, I get a weird flicker. It looks like it is the previously used double buffer. Is there any way to clear the background double buffer before the flicker? Or am I going in the wrong direction?
Here's a couple of videos of the problem:
[url]
[url]
Notice the black screen with the white lines on it or the flash of the desktop after I click "Movies." How do I get rid of that?
must stop the user from proceeding if the textbox is null,if the textbox has only spaces in it.i tried . trim but that doesnot work, still spaces are excapted as valid characters.
View 4 RepliesThis is a very basic question, I have a parent form and a child form and both window state are set to maximize, would it be possible to remove the toolbar at the top? I have tried most thing like setting the form border style to none on the child form but still I get two tool bars. I would like to remove the tool bar in the black square
View 5 RepliesI have a form called BaseReportForm that handles drawing some stuff to in a panel to create a template for a bunch of reports. The drawing all takes place in the Panel's Paint event and this form will always be inherited. In the inherited forms, I draw the specific details of the report in the inherited form's Panel Paint event. So I am drawing to the same panel from the base form and from the inherited form. It all works fine, but when I try to open the design view for the inherited forms, I get the following error..
Quote:
The event Paint is read-only and cannot be changed.
I'm not sure I am handling my paint events correctly. Is there a different way I should be handling the drawing of these reports?
I always get this error during the Paint event: System.AccessViolationException was unhandled. The weird thing is that it doesn't happen the first time it goes through.
Here's the code.
Friend CustomFont As Font = GetCustomFont()
Private Function GetCustomFont() As Drawing.Font
Try
Dim PFC As Drawing.Text.PrivateFontCollection
[CODE]...
Symbols is just a 2 dimensional array of characters.
How to create a Paint program with all the functions of Microsoft Paint?
View 5 RepliesHow can microsoft paint(or any other painting software) be included in a VB.net project? I need to used its functionalities to maipulate jpg and movie file. Is there any ways this can be done on VB.net (or Visual Studio).
View 2 RepliesOk major problem with a paint program i am making. When i have a window overlap or anything and move to side of screen and minimize and maximize i lose whats in the picturebox...Here is an example of the code I use to draw a line after click a button:
Private Sub btndraw_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnlinedraw.Click
lxs = txtslinelocationx.Text
lxe = txtelinelocationx.Text[code].....
Here is a picture of my program running: How do I stop everything being deleted when things pass it...? how can i add a save feature to this program?
Presently, i am using a picture box and import the picture through same on Visual Studio 2008. These pictures all work fine and are dumb with no activity (i.e. border, background, logo etc.) and only act to pretty up the form. The only thing is that if you click on them a border appear around the image as if it was a button etc.
View 1 RepliesI have a main form, and an options form that opens and closes when the "options" button is clicked. If the main form is closed then the options form closes also.I would like it that if the options form is open and the main form is shown / made visible / brought to front / gains focus / selected / etc., then the options form is also shown (i can see it).
View 8 RepliesI just couldn't find the right words to say it but, the thing is, I just want to make a certain word inside a paragraph bold. The word will be automatically set to bold in runtime. See for example the words 'John' shall be all set to bold.
Here is the
tempstr = tempstr.Replace(vbTab, "")
Dim secstr As String = tempstr.Replace(Chr(10), " ")
str = Split(secstr, " ")
[Code]....
the output of the above code is, it only makes the first occurence bold. All other word "John" are just set to Regular text when what I want is to make it all bold.
What is lacking? I used the "for each loop" to visit all the words.
I'm almost embarassed to ask it. How do I loop through seleted rows in a DataGridView and remove the rows?[code]
View 2 RepliesI want to display them in a listbox. I have gobbled together this
Dim theFolderBrowser As New FolderBrowserDialog
theFolderBrowser.Description = "Please select a folder for the download."
'theFolderBrowser.ShowNewFolderButton = False
[Code]....
get the actual path and then used that to get a bunch of mp3 files paths from a folder. However the above code gives me nothing in return.
I would like to know if and how I can move a selected item in one listbox and the second listbox moves the same item aswell (so they move in sync).I can move the items in one listbox with the following
Private Sub UpButton_Click(sender As System.Object, e As System.EventArgs) Handles UpButton.Click
Dim index As Integer = ListBox1.SelectedIndex
[code].....
I have a combobox which is populated from a datatable.
I hae a list of values also and when one is selected i would like it to highlight the correct value in the combo box and have been trying to no avail.
my code is
Dim searchrow() As DataRow
Dim searchrow2() As DataRow
Dim cellvalue As String = dgvStockComps.Rows(e.RowIndex).Cells(1).Value
[Code]....
eveytime i sellect a value in my list nothing happejns to my combo box (i.e. it goes blank and it doesnt show the sleected item like i would like!)
I created a form to capture a user name and password.I thought it would be nice, during the form load event, for me to put the windows username in the name field for them in case they were the same.When I do this the name appears selected/highlighted.I didn't expect this to be the default but it seems to be.I then use select(0, 0) to remove the selection I didn't want in the first place and try to move the focus down to the password field but it doesn't work.Can someone tell me if the text being automatically selected is normal and why I can't change focus to the password field.[code]
View 2 Replies