I have a rectangle with drawings inside it. I want to draw something else on top, but later restore the original insides without necessarily know what they were.
View 4 RepliesI am using asp.net and the .net framework 2.0. I may be able to upgrade the servers to 3.5 if the solution is compelling enough. Here is the problem. I have two pieces of xml. I'll refer to piece number 1 as the template and piece number 2 as the actual. Here's a basic example:
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I save my database in my application like this:
Public Sub save_mandant(Optional ByVal SName As String = "")
Dim set_temp As New DataSet
Dim set_tables As New DataSet
Dim ada_temp As New SqlDataAdapter("Select name from Sys.tables", SQLcon)
ada_temp.Fill(set_tables, "T")
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programing script in vb for saveing and restoring?
View 1 RepliesSometimes I select a value in my Combobox by hand, and sometimes the value to show is chosen elsewhere in my program logic. I want to carry out a certain action only when I have chosen a value by hand, and not when the value is changed by the program. For this reason I use the DropDownClosed event (and not, for example, SelectedValueChanged or SelectedIndexChanged). This works fine, but if I set AutoCompleteMode of my Combobox to Suggest, selecting a value from the suggested list doesn't fire the DropDownClosed event (perhaps logical, as the actual drop down list doesn't actually open).
View 2 RepliesI just downloaded VS 2010 beta to try my hand at re-learning (from scratch it seems) some of this to do a somewhat basic app. At the moment I have a tree view and it contains/will contain paired parent and child data. There's a Title (the parent) and a URL (child) and that's it with regard to depth. There will be potentially lots of these pairs. That said there may be some options associated with those pairs that would also need to be stored later. I'm thinking the best way to deal with this is to store the data in XML format but, of course, I've never really done much with XML though I can physically read it. Could someone point me or provide a piece of code that saves and restores a tree? [Code]
View 1 RepliesI'M creating a kind of photo viewer, and I cannot figure out how to orient the scroll buttons with the photos I want to draw because they all are different sizes.This is really hard to explain so please ask questions if you don't understand.I'M thinking if i could draw every photo on a single rectangle and then the scroll bars will position that rectangle up or down. but is there a way to make a rectangle inside another one so it only shows inside that rectangle?
View 10 RepliesI have a DataGridView in one of my form which at a certain point I resize an change it's position. I would like to be able to restore it to the designer's default position at runtime. I know I could save it before changing and then restoring it later, but I feel like there surely is a way in .NET to just restore a control position to it's default.
View 2 RepliesI know how to get a Color (Pixel) from a location
im BMP As New Drawing.Bitmap(1, 1)
Dim GFX As System.Drawing.Graphics = System.Drawing.Graphics.FromImage(BMP)
GFX.CopyFromScreen(New Drawing.Point(MousePosition.X, MousePosition.Y), _
New Drawing.Point(0, 0), BMP.Size)
Dim Pixel As Drawing.Color = BMP.GetPixel(0, 0)
Me.BackColor = Pixel
What I need assistance in is, I am going to create a form. and i wanted to know if there is a way. to Check (not using the mousex and mousey positions) for example. a Rectangle Sized Location to see if anywhere in the back red appears and if red does appear To give an error.
How to draw a rectangle inside an ellipse at runtime?
View 8 RepliesI'm writing a .NET program for an engineering company. Their specification is to find the number of holes (either of same or different radius) on a rectangular plate and then to find the area of the rectangle and also area of the circle inside that rectangle. It's not essential that the circle touches the rectangle.
View 1 RepliesI draw text (comment on item in an invoice ) inside a rectangle.
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I have no problem, the text appear on several lines and it is well wrapped. But if the text is too long to be drawn inside the rectangle, I need to draw the text not drawn in another rectangle (on another page). How can I know the text not drawn in the first rectangle ? I think it is more difficult to use MeasureString because the text is wrapped.
How to draw a rectangle inside an ellipse by mouse events like mousedown,up,move
View 2 Repliesi've got a little problem with List(on T) variables.
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It works perfectly fine. Does anyone know what the problem is?
I have a rich text box in one of my applications (WPF). Now I want to store the data of the rich text box along with its formatting (e.g. bold, colored etc.) into a database (SQL Server). Currently I am storing the whole XAML of the text box in a database field. however, I am not sure whether this is the right approach.
View 2 RepliesGiven a rectangle of width w and height h. and a coordinate x,y in that rectangle I would like to identify which triangle I am within.
i.e. the function should take parameters(x,y) and return a,b,c,d or a zero based number representing that triangle index i.e. (0=A,1=B,2=C,3=D) if they are in that order.
I think this would be something like >= the formula of the red line and >= the formula of the green line?
I'd like to implement this in VB.NET
I always get an out of memory exception with my drawings...I read somewhere that I have to dispose my graphics to diminish the amount of memory used by the system.
I have the onPaint event and in there I call my functions with
Dim g as Graphics = e.Graphics
draw_all(g)
So in fact I have to dispose the e.Graphics every time he has to be repainted. Now my question how can I do that, because when I write before the draw_all function g.Dispose, that doesn't work, because he deletes the declaration of g and he doesn't know anymore what it is. If I dispose it after the draw_all function, he doesn't want to draw either.
This code is to draw rectangle. How can I draw rectangle divided to four rectangle or more
e.Graphics.DrawRectangle(Pens.Coral, 50, 200, 30, 40)
I am using AutoCAD 2012 and the .NET API. Can someone help me how can i loop through the document objects of all the open documents? i am trying to do something like the code below..I have this question on Autodesk Forum too.[code]...
View 2 RepliesI've problem with clearing all the drawings I've created in my PictureBox. In fact I've created animation which stops after certain time and remains on the screen. The animation is created/painted with collection of about 25 TextBoxes - input of a user. Now I've added a button which clears all that info in TextBoxes and also should clear PictureBox -ictureBox.Refresh(). The problem is when I add new info in 25 TextBoxes nothing appears in PictureBox and I can't start an animation. Wondering why...
View 11 RepliesI'm trying to write a program. This should be a simple task for most of you, but I have taken one class of programming back in High School so I'm kinda lost.
The program needs to do the following:
-Open AutoCAD File
-File=>Export=>PDF=>Save
-Close AutoCAD
If possible to select a whole folder full of these AutoCAD drawings and have the program run a loop until all the files in the folder have been exported into a pdf file.
my goal is to copy the content of a picturebox, to a System.Drawing.Bitmap object, called tempBMP. but i didnt even use it i just tried to declare it there's an error: Object reference not set to an instance of an object.
here's my
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
Dim colors(sizeX - 1, sizeY - 1) As Color
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how to restore a database from vb.net,I tried to restore using stored procedure by taking retore template script from sql server2005. but there is error "the database is already in use please use a master database.."
View 3 RepliesI am trying to develope a small graphics application in VB.NET. My startup form has a picture box with a background image loaded from a file. The user can click spots on the picture box and this draws some circles on it. On exit the coordinates for these spots are saved to a file.In my form load procedure I load the background image, the coordinates for the graphics(saved from the last time the program was run), and then call the drawing procedure.
The drawings appear for an instant and then dissappear. If you click the picture box the graphics re-appear.The form works fine once you do this.I guess the picture box is refreshed by the form load event and this is causing the drawings to be wiped.(I stalled the call to the drawing procedure by using a timer and this works but I am sure there is a proper way of fixing this)Is there a way of ensuring a form is fully loaded or making sure the drawing procedure occurs only when the form is fully loaded?
HERES THE
Private Sub Form2_Load(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Load
Me.WindowState = FormWindowState.Maximized[code].....
I'm using the below to restore a database in VB.NET.This works but causes the interface to lockup if the user clicks anything.Also, I cannot get the progress label to update incrementally, it's blank until the backup is complete then displays 100%.[code]
View 1 RepliesI have written a windows form which allows a user to backup the database to medium of their choice and this works fine. I am now trying to use a very similar windows form to restore the database from previous backups.The problem I am having is the restore fails because the database is in use by this session. Googling this fault there appears to be several different solutions including using the master database, using tempdb or setting the database to single user but I cant find out how to do any of them with regarding what code to use.The option of changing to single user mode seemed the easiest but what coding do I have to use.[code]
View 17 RepliesI am trying to restore SQL server DB, replacing the existing one but donot know how to do it.My purpose is to restore the backup file selected by user, no matter if file with this name is already attached to the server or not. If it is there, it should be replaced by the new one.
View 1 RepliesI have created an ASP.NET class derived from the standard WebControls.TextBox, with the intention of adding extra properties that will persist between post-backs. However, I cannot figure how to get the values in these properties to persist. I have tried setting the value of the properties into the controls ViewState as part of the PreRender handler, but the value is then not accessible in the Init handler on the post-back, because the ViewState has not yet been setup.
I could look for the ViewState value in the Load handler of the control, but if the page/usercontrol that is using the control asks for the properties value during its Load handler, the control hasn't yet reached it's Load handler, and it therefore not there.
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In the end, the way I managed to get it to work was to use a <asp:PlaceHolder> control within the repeater, create an instance of my control within the ItemDataBound handler of the repeater, and then add the control to the <asp:PlaceHolder>... all done within the Init section (which fortunately I'm able to do).
As Andrew found out in this previous question you can end up in a chicken/egg situation, where you need to create the controls in the Init, but you won't know what controls you need until the Load.
I need to create an application that will restore a user's mapped drives from a database. To do this, I need to create a script that will automatically back up the user's mapped drives on logon.
What would be the best way to go about doing this?
How to print nice Drawings and things... All i want to do is send the data from a simple textbox to a piece of paper. I understand how to do page setup and such.. The only thing i don't know is how to actually set up the page.
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