C# render panel programmatically
Multi tool use
0
I have a class MyUserControl containing some plots that normally I add to a form for visualization.
However, I have a feature that requires me to write a MyUserControl object to an image file, but I only seem to see white in the image.
My code is as follows:
MyUserControl uc = new MyUserControl();
uc.loadData();
int width = uc.Size.Width;
int height = uc.Size.Height;
Bitmap bm = new Bitmap(width, height);
uc.DrawToBitmap(bm, new Rectangle(0, 0, width, height));
bm.Save(@"C:pathtofile.bmp");
What do I need to do to "trick" my MyUserControl into thinking its already been added to a panel for rendering, but have it render directly into a file instead?
c# winforms
edited Dec 28 '18 at 3:13
Cœur
17.4k9103145
asked Aug 30 '17 at 16:28
BGSGunterGlut
175
add a comment |
0
I have a class MyUserControl containing some plots that normally I add to a form for visualization.
However, I have a feature that requires me to write a MyUserControl object to an image file, but I only seem to see white in the image.
My code is as follows:
MyUserControl uc = new MyUserControl();
uc.loadData();
int width = uc.Size.Width;
int height = uc.Size.Height;
Bitmap bm = new Bitmap(width, height);
uc.DrawToBitmap(bm, new Rectangle(0, 0, width, height));
bm.Save(@"C:pathtofile.bmp");
What do I need to do to "trick" my MyUserControl into thinking its already been added to a panel for rendering, but have it render directly into a file instead?
c# winforms
edited Dec 28 '18 at 3:13
Cœur
17.4k9103145
asked Aug 30 '17 at 16:28
BGSGunterGlut
175
What class and interfaces does MyUserControl inherit from?
– WithMetta
Aug 30 '17 at 17:14
Maybe try calling uc.OnPaint(null) before calling bm.Save() docs.microsoft.com/en-us/dotnet/framework/winforms/controls/…
– WithMetta
Aug 30 '17 at 17:24
DrawToBitmap will draw whatever you draw in the Paint event.
– TaW
Aug 30 '17 at 18:32
The problem is I'm not overriding OnPaint. Instead I have a ZedGraph control that I've added to a sub-panel as well as two other Telerik RadPanels which I've attached paint events to. Is it possible to refactor all of this into OnPaint() without losing the custom interactivity on the plot?
– BGSGunterGlut
Aug 31 '17 at 13:41
add a comment |
0
0
0
I have a class MyUserControl containing some plots that normally I add to a form for visualization.
However, I have a feature that requires me to write a MyUserControl object to an image file, but I only seem to see white in the image.
My code is as follows:
MyUserControl uc = new MyUserControl();
uc.loadData();
int width = uc.Size.Width;
int height = uc.Size.Height;
Bitmap bm = new Bitmap(width, height);
uc.DrawToBitmap(bm, new Rectangle(0, 0, width, height));
bm.Save(@"C:pathtofile.bmp");
What do I need to do to "trick" my MyUserControl into thinking its already been added to a panel for rendering, but have it render directly into a file instead?
c# winforms
edited Dec 28 '18 at 3:13
Cœur
17.4k9103145
asked Aug 30 '17 at 16:28
BGSGunterGlut
175
I have a class MyUserControl containing some plots that normally I add to a form for visualization.
However, I have a feature that requires me to write a MyUserControl object to an image file, but I only seem to see white in the image.
My code is as follows:
MyUserControl uc = new MyUserControl();
uc.loadData();
int width = uc.Size.Width;
int height = uc.Size.Height;
Bitmap bm = new Bitmap(width, height);
uc.DrawToBitmap(bm, new Rectangle(0, 0, width, height));
bm.Save(@"C:pathtofile.bmp");
What do I need to do to "trick" my MyUserControl into thinking its already been added to a panel for rendering, but have it render directly into a file instead?
c# winforms
c# winforms
edited Dec 28 '18 at 3:13
Cœur
17.4k9103145
asked Aug 30 '17 at 16:28
BGSGunterGlut
175
edited Dec 28 '18 at 3:13
Cœur
17.4k9103145
asked Aug 30 '17 at 16:28
BGSGunterGlut
175
edited Dec 28 '18 at 3:13
Cœur
17.4k9103145
edited Dec 28 '18 at 3:13
Cœur
17.4k9103145
edited Dec 28 '18 at 3:13
Cœur
17.4k9103145
17.4k9103145
asked Aug 30 '17 at 16:28
BGSGunterGlut
175
asked Aug 30 '17 at 16:28
BGSGunterGlut
175
asked Aug 30 '17 at 16:28
BGSGunterGlut
175
175
What class and interfaces does MyUserControl inherit from?
– WithMetta
Aug 30 '17 at 17:14
Maybe try calling uc.OnPaint(null) before calling bm.Save() docs.microsoft.com/en-us/dotnet/framework/winforms/controls/…
– WithMetta
Aug 30 '17 at 17:24
DrawToBitmap will draw whatever you draw in the Paint event.
– TaW
Aug 30 '17 at 18:32
The problem is I'm not overriding OnPaint. Instead I have a ZedGraph control that I've added to a sub-panel as well as two other Telerik RadPanels which I've attached paint events to. Is it possible to refactor all of this into OnPaint() without losing the custom interactivity on the plot?
– BGSGunterGlut
Aug 31 '17 at 13:41
add a comment |
What class and interfaces does MyUserControl inherit from?
– WithMetta
Aug 30 '17 at 17:14
Maybe try calling uc.OnPaint(null) before calling bm.Save() docs.microsoft.com/en-us/dotnet/framework/winforms/controls/…
– WithMetta
Aug 30 '17 at 17:24
DrawToBitmap will draw whatever you draw in the Paint event.
– TaW
Aug 30 '17 at 18:32
The problem is I'm not overriding OnPaint. Instead I have a ZedGraph control that I've added to a sub-panel as well as two other Telerik RadPanels which I've attached paint events to. Is it possible to refactor all of this into OnPaint() without losing the custom interactivity on the plot?
– BGSGunterGlut
Aug 31 '17 at 13:41
What class and interfaces does MyUserControl inherit from?
– WithMetta
Aug 30 '17 at 17:14
What class and interfaces does MyUserControl inherit from?
– WithMetta
Aug 30 '17 at 17:14
Maybe try calling uc.OnPaint(null) before calling bm.Save() docs.microsoft.com/en-us/dotnet/framework/winforms/controls/…
– WithMetta
Aug 30 '17 at 17:24
Maybe try calling uc.OnPaint(null) before calling bm.Save() docs.microsoft.com/en-us/dotnet/framework/winforms/controls/…
– WithMetta
Aug 30 '17 at 17:24
DrawToBitmap will draw whatever you draw in the Paint event.
– TaW
Aug 30 '17 at 18:32
DrawToBitmap will draw whatever you draw in the Paint event.
– TaW
Aug 30 '17 at 18:32
The problem is I'm not overriding OnPaint. Instead I have a ZedGraph control that I've added to a sub-panel as well as two other Telerik RadPanels which I've attached paint events to. Is it possible to refactor all of this into OnPaint() without losing the custom interactivity on the plot?
– BGSGunterGlut
Aug 31 '17 at 13:41
The problem is I'm not overriding OnPaint. Instead I have a ZedGraph control that I've added to a sub-panel as well as two other Telerik RadPanels which I've attached paint events to. Is it possible to refactor all of this into OnPaint() without losing the custom interactivity on the plot?
– BGSGunterGlut
Aug 31 '17 at 13:41
add a comment |
1 Answer
1
active
oldest
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You can add a SaveToBitmap() method to your control. So you can call the protected OnPaint() method.
public class MyUserControl : UserControl
{
...
public void SaveToBitmap(string filePath)
{
using(Graphics g = this.CreateGraphics())
{
var bmp = new Bitmap(this.ClientSize.Width, this.ClientSize.Height, g);
using(Graphics gBmp = Graphics.FromImage(bmp))
{
PaintEventArgs e = new PaintEventArgs(gBmp, this.ClientRectangle);
this.OnPaint(e);
}
bmp.Save(filePath);
}
}
}
answered Aug 31 '17 at 5:40
KBO
48549
Unfortunately, this just writes a completely black 100x200 px image.
– BGSGunterGlut
Aug 31 '17 at 8:00
add a comment |
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1 Answer
1
active
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votes
1 Answer
1
active
oldest
votes
active
oldest
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active
oldest
votes
0
You can add a SaveToBitmap() method to your control. So you can call the protected OnPaint() method.
public class MyUserControl : UserControl
{
...
public void SaveToBitmap(string filePath)
{
using(Graphics g = this.CreateGraphics())
{
var bmp = new Bitmap(this.ClientSize.Width, this.ClientSize.Height, g);
using(Graphics gBmp = Graphics.FromImage(bmp))
{
PaintEventArgs e = new PaintEventArgs(gBmp, this.ClientRectangle);
this.OnPaint(e);
}
bmp.Save(filePath);
}
}
}
answered Aug 31 '17 at 5:40
KBO
48549
Unfortunately, this just writes a completely black 100x200 px image.
– BGSGunterGlut
Aug 31 '17 at 8:00
add a comment |
0
You can add a SaveToBitmap() method to your control. So you can call the protected OnPaint() method.
public class MyUserControl : UserControl
{
...
public void SaveToBitmap(string filePath)
{
using(Graphics g = this.CreateGraphics())
{
var bmp = new Bitmap(this.ClientSize.Width, this.ClientSize.Height, g);
using(Graphics gBmp = Graphics.FromImage(bmp))
{
PaintEventArgs e = new PaintEventArgs(gBmp, this.ClientRectangle);
this.OnPaint(e);
}
bmp.Save(filePath);
}
}
}
answered Aug 31 '17 at 5:40
KBO
48549
Unfortunately, this just writes a completely black 100x200 px image.
– BGSGunterGlut
Aug 31 '17 at 8:00
add a comment |
0
0
0
You can add a SaveToBitmap() method to your control. So you can call the protected OnPaint() method.
public class MyUserControl : UserControl
{
...
public void SaveToBitmap(string filePath)
{
using(Graphics g = this.CreateGraphics())
{
var bmp = new Bitmap(this.ClientSize.Width, this.ClientSize.Height, g);
using(Graphics gBmp = Graphics.FromImage(bmp))
{
PaintEventArgs e = new PaintEventArgs(gBmp, this.ClientRectangle);
this.OnPaint(e);
}
bmp.Save(filePath);
}
}
}
answered Aug 31 '17 at 5:40
KBO
48549
You can add a SaveToBitmap() method to your control. So you can call the protected OnPaint() method.
public class MyUserControl : UserControl
{
...
public void SaveToBitmap(string filePath)
{
using(Graphics g = this.CreateGraphics())
{
var bmp = new Bitmap(this.ClientSize.Width, this.ClientSize.Height, g);
using(Graphics gBmp = Graphics.FromImage(bmp))
{
PaintEventArgs e = new PaintEventArgs(gBmp, this.ClientRectangle);
this.OnPaint(e);
}
bmp.Save(filePath);
}
}
}
answered Aug 31 '17 at 5:40
KBO
48549
answered Aug 31 '17 at 5:40
KBO
48549
answered Aug 31 '17 at 5:40
KBO
48549
answered Aug 31 '17 at 5:40
KBO
48549
48549
Unfortunately, this just writes a completely black 100x200 px image.
– BGSGunterGlut
Aug 31 '17 at 8:00
add a comment |
Unfortunately, this just writes a completely black 100x200 px image.
– BGSGunterGlut
Aug 31 '17 at 8:00
Unfortunately, this just writes a completely black 100x200 px image.
– BGSGunterGlut
Aug 31 '17 at 8:00
Unfortunately, this just writes a completely black 100x200 px image.
– BGSGunterGlut
Aug 31 '17 at 8:00
add a comment |
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What class and interfaces does MyUserControl inherit from?
– WithMetta
Aug 30 '17 at 17:14
Maybe try calling uc.OnPaint(null) before calling bm.Save() docs.microsoft.com/en-us/dotnet/framework/winforms/controls/…
– WithMetta
Aug 30 '17 at 17:24
DrawToBitmap will draw whatever you draw in the Paint event.
– TaW
Aug 30 '17 at 18:32
The problem is I'm not overriding OnPaint. Instead I have a ZedGraph control that I've added to a sub-panel as well as two other Telerik RadPanels which I've attached paint events to. Is it possible to refactor all of this into OnPaint() without losing the custom interactivity on the plot?
– BGSGunterGlut
Aug 31 '17 at 13:41