> Hi,
>
> I am trying to draw a simple graph using ASP.NET without using a 3rd party
> control.
>
> I only want to draw a simple horizontal bar chart, save it to a JPG and
> render it on my web form.
>
> There are several articles using GDI(?) for this, but they all relate to
> windows forms, not web forms. My attempts to convert it to using on a web
> form aren't working too well.
>
> Does anyone have an example of how to do this from ASP.NET? Help greatly
> appreciated! Thanks!!
>
> Cory
>
> P.s. Here is my first shot at a prototype. as you can see, nothing
> happens...
>
> Protected Sub Page_Load(ByVal sender As Object, ByVal e As
> System.EventArgs)
> Handles Me.Load
>
>        Dim bmp As New Bitmap(200, 200)
>        Dim fg As Graphics = Graphics.FromImage(bmp)
>
>        fg.FillRectangle(Brushes.Aqua, 50, 50, 100, 100)
>
>        bmp.Save("Test.bmp")
>
>        Image1.ImageUrl = "test.bmp"
>
>
>    End Sub

> What if you add fg.Dispose before saving the file ? (also I would
> explicitely mention the format, If I remember the default is png so here
> you have a png named with a bmp extension)
>
> --
> Patrice
>
>
> "Cory J. Laidlaw, Beyond01.com"
> <CoryJLaidlawBeyond01***@discussions.microsoft.com> a écrit dans le
> message de groupe de discussion :
> 3D1F4D40-229B-43DF-A560-23D60BDD6***@microsoft.com...
>> Hi,
>>
>> I am trying to draw a simple graph using ASP.NET without using a 3rd
>> party
>> control.
>>
>> I only want to draw a simple horizontal bar chart, save it to a JPG and
>> render it on my web form.
>>
>> There are several articles using GDI(?) for this, but they all relate to
>> windows forms, not web forms. My attempts to convert it to using on a web
>> form aren't working too well.
>>
>> Does anyone have an example of how to do this from ASP.NET? Help greatly
>> appreciated! Thanks!!
>>
>> Cory
>>
>> P.s. Here is my first shot at a prototype. as you can see, nothing
>> happens...
>>
>> Protected Sub Page_Load(ByVal sender As Object, ByVal e As
>> System.EventArgs)
>> Handles Me.Load
>>
>>        Dim bmp As New Bitmap(200, 200)
>>        Dim fg As Graphics = Graphics.FromImage(bmp)
>>
>>        fg.FillRectangle(Brushes.Aqua, 50, 50, 100, 100)
>>
>>        bmp.Save("Test.bmp")
>>
>>        Image1.ImageUrl = "test.bmp"
>>
>>
>>    End Sub
>
>

"Patrice" wrote:

> What if you add fg.Dispose before saving the file ? (also I would
> explicitely mention the format, If I remember the default is png so here you
> have a png named with a bmp extension)
>
> --
> Patrice
>
>
> "Cory J. Laidlaw, Beyond01.com"
> <CoryJLaidlawBeyond01***@discussions.microsoft.com> a crit dans le message
> de groupe de discussion :
> 3D1F4D40-229B-43DF-A560-23D60BDD6***@microsoft.com...
> > Hi,
> >
> > I am trying to draw a simple graph using ASP.NET without using a 3rd party
> > control.
> >
> > I only want to draw a simple horizontal bar chart, save it to a JPG and
> > render it on my web form.
> >
> > There are several articles using GDI(?) for this, but they all relate to
> > windows forms, not web forms. My attempts to convert it to using on a web
> > form aren't working too well.
> >
> > Does anyone have an example of how to do this from ASP.NET? Help greatly
> > appreciated! Thanks!!
> >
> > Cory
> >
> > P.s. Here is my first shot at a prototype. as you can see, nothing
> > happens...
> >
> > Protected Sub Page_Load(ByVal sender As Object, ByVal e As
> > System.EventArgs)
> > Handles Me.Load
> >
> >        Dim bmp As New Bitmap(200, 200)
> >        Dim fg As Graphics = Graphics.FromImage(bmp)
> >
> >        fg.FillRectangle(Brushes.Aqua, 50, 50, 100, 100)
> >
> >        bmp.Save("Test.bmp")
> >
> >        Image1.ImageUrl = "test.bmp"
> >
> >
> >    End Sub
>
>

news:3D1F4D40-229B-43DF-A560-23D60BDD6032@microsoft.com...
> Hi,
>
> I am trying to draw a simple graph using ASP.NET without using a 3rd party
> control.
>
> I only want to draw a simple horizontal bar chart, save it to a JPG and
> render it on my web form.
>
> There are several articles using GDI(?) for this, but they all relate to
> windows forms, not web forms. My attempts to convert it to using on a web
> form aren't working too well.
>
> Does anyone have an example of how to do this from ASP.NET? Help greatly
> appreciated! Thanks!!
>
> Cory
>
> P.s. Here is my first shot at a prototype. as you can see, nothing
> happens...
>
> Protected Sub Page_Load(ByVal sender As Object, ByVal e As
> System.EventArgs)
> Handles Me.Load
>
>        Dim bmp As New Bitmap(200, 200)
>        Dim fg As Graphics = Graphics.FromImage(bmp)
>
>        fg.FillRectangle(Brushes.Aqua, 50, 50, 100, 100)
>
>        bmp.Save("Test.bmp")
>
>        Image1.ImageUrl = "test.bmp"
>
>
>    End Sub

"Cor Ligthert[MVP]" <Notmyfirstn***@planet.nl> schrieb:
> Creating yourself images on ASPNet is not as simple as in Windows Forms.
>
> Every image in HTML has its own url, you can see that sometimes in your
> browser.
>
> This is a method how you can do it.
>
> http://www.vb-tips.com/ServerClock.aspx
>
> I think this is an outdated example I made some years ago.
>
> If I would make this example new, then I certainly would try to do it with
> Silverlight