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It was a problem to me. First check whether you created the Primary Key.
chatura
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Hi All,
I am fairly new to VB.NET however, I am working with Drawings, and have encountered a problem. Whenever I try to draw a line outside of the original size of the form it does not appear. For example a form 300x300 even when resized prior to execution still will not allow a line outside the 300x300 area? any ideas?
Regards,
Oz
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Hi
Is it possible to use my VB application to run Summary Reports from a Database at a click of a button.
Basically, I have a Database Table with 3 Fields - Date, Task, Duration.
I want my VB application to produce Summary Reports based on the Data in the Table at a click of a button. I want to be able to produce Daily, Weekly and Monthly Reports.
Is this possible? Please let me know if more info is needed.
Regards
ensuvari
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yes u can do so with the help of datareports or crystal reports whatever u want to use in ur application. with the help of these reports u can generate any kind of report on a click of button
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Do you know any links to online Tutorials where I can learn how to use DataReports and CrystalReports?
Regards
ensuvari
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I am reading in an image (JPG) and I need to change the DPI from lets say 96 to 72. Here are the last two lines of code I am using to create the new image.
bmTarget = New Bitmap(ResizeWidth, ResizeHeight, PixelFormat.Format24bppRgb)
bmTarget.Save(NewPath, Drawing.Imaging.ImageFormat.Jpeg)
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To fix the DPI of the image here is what I ended up doing.
After I created the bitmap image I used SET RESOLUTION -
BMTarget.SetResolution(intDpiX, intDpiY)
Then save the image
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Hi
Just starting to look at .NET 2.0. Is it possible to get hold of the Application Event instance from anywhere in the application, guess it must be like a singleton?
Cheers
Rich
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hi there all,
I am having a hard time doing this, the sample code is like this
Dim p As New Process
p.StartInfo.FileName = "C:\windows\system32\runas.exe"
p.EnableRaisingEvents = True
p.StartInfo.Arguments = "/user:myuser@mydomain notepad.exe"
p.StartInfo.UseShellExecute = False
p.StartInfo.RedirectStandardInput = True
p.StartInfo.RedirectStandardOutput = True
p.StartInfo.CreateNoWindow = True
p.Start()
Thread.Sleep(1000)
p.StandardInput.Write("mypass" & System.Environment.Newline)
p.WaitForExit()
p.Close()
p = Nothing
I was able to run services like this, doing other stuff from command prompt inside my application. but as runas require password which am trying to enter but it is not working.
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I have a custom control that I created. It's a multicolumn combobox. It works great. My only problem is that I can only use ONE on my form. When I add a second instance of the control it will not do anything....only ONE will work. Anybody have an idea why that is?
-Kay
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i'm using mshflexgrid control
i am using this for adding row
grid.additem (grid.rows)
and showing the textbox contents in the grid usng the row and col properties
for removing a row i'm using this code
grid.removeitem (grid.row)
but after deleting a selected row (user selects), adding a row using the above code adds the row but doesnot show it in the grid
please help ...its urgent
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y dont u try to do this with .textarray prperty ., I think it will help u more efficiently than this.
for further details u can ask bcoz i'm using MSHFlexGrid in my codes also
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Hi to all
can someone help me in writing code for Hibernating and Stand By (suspend) computer using vb.net code.
I have searched the internet a lot but don't found a reasonable answer to it.
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I think but im not sure you will have to double check it
that there is some functionality in wmi. there is good documentation on the
microsoft website on how to access wmi from vb.net
good luck.
Dan
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I have to get the relative path to an excel sheet which is placed in folder where my vb.net project is present. What is the command to get relative path ?
Divya Rathi
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Look up the Application (for .NET) or App (VB 6) object.
...Steve
1. quod erat demonstrandum
2. "Give a man a fish and you've fed him for a day. Teach him how to fish and you've fed him for life." I read that somewhere once
(Translation: I'll show you the way, but not write the code for you.)
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You could use
Console.WriteLine(Path.GetFullPath("..\"))
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Hi all,
I've just started programming in VB.net and am new to this forum. I've created a main screen for an application with several buttons, and grids.
I set the appropriate anchoring and everything works fine on me and my tester's PC monitor. I can resize the forms and use different redolutions.
However, when I run on my bosses Dell laptop, the right hand side and bottom of the screen are missing. No matter what I change the resolution to you can never see everything.
Has someone ever come across this issue before?
Any help would be much appreciated,
Dave
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Okay this looks nasty. Real Nasty. So here's the code.
Its supposed to be three parallel color polygons but, it doesn't look like that.
This is the first time i'm using the gradient brush so, if any of the experienced Vb programmers could help me make it look neater than what it is, that would be appreciated.
Private Sub frmSplash_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
'Declares procedure level varaibles.
Dim brGradient As System.Drawing.Drawing2D.LinearGradientBrush
Dim points() As PointF
'Defines the rectangle.
Dim clientRectangle As New System.Drawing.Rectangle(0, 0, _
Me.Width, Me.Height)
'Sets the Gradient Brush color for the red polygon.
brGradient = New System.Drawing.Drawing2D.LinearGradientBrush(clientRectangle, _
Color.Black, Color.Red, _
System.Drawing.Drawing2D.LinearGradientMode.Horizontal)
'Draws the points for the red polygon.
points = New PointF() {New PointF(0, 0), _
New PointF(0, 30), _
New PointF(ToSingle(Me.Width / 2.3), 320), _
New PointF(ToSingle(Me.Width / 2), 320), _
New PointF(ToSingle(Me.Width / 2), 295), _
New PointF(35, 0), _
New PointF(0, 0)}
'Fills the red polygon using the points and gradient brush.
e.Graphics.FillPolygon(brGradient, points)
'Closes the Gradient brush.
brGradient.Dispose()
'Sets the Gradient Brush color for the green polygon.
brGradient = New System.Drawing.Drawing2D.LinearGradientBrush(clientRectangle, _
Color.Black, Color.Green, _
System.Drawing.Drawing2D.LinearGradientMode.Horizontal)
'Draws the points for the green polygon.
points = New PointF() {New PointF(125, 0), _
New PointF(125, 30), _
New PointF(400, 320), _
New PointF(435, 320), _
New PointF(435, 295), _
New PointF(160, 0), _
New PointF(125, 0)}
'Fills the green polygon using the points and gradient brush.
e.Graphics.FillPolygon(brGradient, points)
'Closes the Gradient brush.
brGradient.Dispose()
'Sets the Gradient Brush color for the blue polygon.
brGradient = New System.Drawing.Drawing2D.LinearGradientBrush(clientRectangle, _
Color.Black, Color.Blue, _
System.Drawing.Drawing2D.LinearGradientMode.Horizontal)
'Draws the points for the blue polygon.
points = New PointF() {New PointF(255, 0), _
New PointF(255, 30), _
New PointF(525, 320), _
New PointF(560, 320), _
New PointF(560, 295), _
New PointF(290, 0), _
New PointF(255, 0)}
'Fills the blue polygon using the points and gradient brush.
e.Graphics.FillPolygon(brGradient, points)
'Closes the Gradient brush.
brGradient.Dispose()
Ty
-- modified at 11:54 Tuesday 14th March, 2006
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Replace ToSingle with CSng. You have created polygons. But those polygons don’t look like what you have expected. Try to change x- and y-coordinates of PointFs according to you preference.
chatura
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What does CSng mean and what does it do?
Ty
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converts to single data type
chatura
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Hi all,
1-I need to use custom paper size using crystal report in vb.net, how can I ?
2-Is there any way to create custom paper size and include it in printer paper size collection using printer properties at windows level ?
Thanks in advance
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