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How to use if statement in user control with picBox? [closed]

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1

I've created a user control with picture box on it and I just want to know how to check if the picture box is Empty or not. I tried to use If statement but PicBox doesn't exist in (statements). How to solve this guys?

c#

share|improve this question

asked Mar 25 at 7:10

BassamTFakiraBassamTFakira

92

closed as off-topic by Jon Skeet, Stephan Bauer, Stefan Becker, JumpingJezza, greg-449 Mar 25 at 7:59

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Reproducible Example." – Jon Skeet, Stephan Bauer, Stefan Becker, JumpingJezza, greg-449

If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Are you using WPF? Please give some more information about your system, and the code you have tried.
  
  – Luchspeter
  Mar 25 at 7:11
  

  
  
  
  


• 
  
  
  

  
  4
  

  
  
  
  
  
  

  
  
  Welcome to Stack Overflow. Unfortunately it's very hard to help without seeing your code. My guess is that you're either using the wrong variable name, or you've declared it as a local variable within a method or constructor. But we can't really tell without seeing your code. Please provide a minimal reproducible example.
  
  – Jon Skeet
  Mar 25 at 7:11
  

  
  
  
  

add a comment | 

1

I've created a user control with picture box on it and I just want to know how to check if the picture box is Empty or not. I tried to use If statement but PicBox doesn't exist in (statements). How to solve this guys?

c#

share|improve this question

asked Mar 25 at 7:10

BassamTFakiraBassamTFakira

92

closed as off-topic by Jon Skeet, Stephan Bauer, Stefan Becker, JumpingJezza, greg-449 Mar 25 at 7:59

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Reproducible Example." – Jon Skeet, Stephan Bauer, Stefan Becker, JumpingJezza, greg-449

If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Are you using WPF? Please give some more information about your system, and the code you have tried.
  
  – Luchspeter
  Mar 25 at 7:11
  

  
  
  
  


• 
  
  
  

  
  4
  

  
  
  
  
  
  

  
  
  Welcome to Stack Overflow. Unfortunately it's very hard to help without seeing your code. My guess is that you're either using the wrong variable name, or you've declared it as a local variable within a method or constructor. But we can't really tell without seeing your code. Please provide a minimal reproducible example.
  
  – Jon Skeet
  Mar 25 at 7:11
  

  
  
  
  

add a comment | 

I've created a user control with picture box on it and I just want to know how to check if the picture box is Empty or not. I tried to use If statement but PicBox doesn't exist in (statements). How to solve this guys?

c#

share|improve this question

asked Mar 25 at 7:10

BassamTFakiraBassamTFakira

92

share|improve this question

asked Mar 25 at 7:10

BassamTFakiraBassamTFakira

92

share|improve this question

asked Mar 25 at 7:10

BassamTFakiraBassamTFakira

92

asked Mar 25 at 7:10

BassamTFakiraBassamTFakira

92

asked Mar 25 at 7:10

BassamTFakiraBassamTFakira

92

1 Answer
1

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oldest

votes

0

The PictureBox is (like any other control of your form) a member that's not publicly accessible. Hence an access like this won't work:

public class SomeOtherContext

 public void Foo()
 
 var form = new FormWithPictureBox();
 if (form.pictureBox1.Image != null) // this won't work
 
 
 

What you'll need to do is to generate a public possibility for users of your form to check for a set image. You can e.g. do so by creating a property that's sole purpose is to expose this info:

public class FormWithPictureBox : Form

 public bool IsImageSet
 
 get
 
 // the picturebox is accessible from within the form itself
 return pictureBox1.Image != null;
 
 


public class SomeOtherContext

 public void Foo()
 
 var form = new FormWithPictureBox();
 if (form.IsImageSet) // use the new property
 
 
 

share|improve this answer

answered Mar 25 at 7:26

khlrkhlr

3,84832132

add a comment | 

0

The PictureBox is (like any other control of your form) a member that's not publicly accessible. Hence an access like this won't work:

public class SomeOtherContext

 public void Foo()
 
 var form = new FormWithPictureBox();
 if (form.pictureBox1.Image != null) // this won't work
 
 
 

What you'll need to do is to generate a public possibility for users of your form to check for a set image. You can e.g. do so by creating a property that's sole purpose is to expose this info:

public class FormWithPictureBox : Form

 public bool IsImageSet
 
 get
 
 // the picturebox is accessible from within the form itself
 return pictureBox1.Image != null;
 
 


public class SomeOtherContext

 public void Foo()
 
 var form = new FormWithPictureBox();
 if (form.IsImageSet) // use the new property
 
 
 

share|improve this answer

answered Mar 25 at 7:26

khlrkhlr

3,84832132

add a comment | 

0

The PictureBox is (like any other control of your form) a member that's not publicly accessible. Hence an access like this won't work:

public class SomeOtherContext

 public void Foo()
 
 var form = new FormWithPictureBox();
 if (form.pictureBox1.Image != null) // this won't work
 
 
 

What you'll need to do is to generate a public possibility for users of your form to check for a set image. You can e.g. do so by creating a property that's sole purpose is to expose this info:

public class FormWithPictureBox : Form

 public bool IsImageSet
 
 get
 
 // the picturebox is accessible from within the form itself
 return pictureBox1.Image != null;
 
 


public class SomeOtherContext

 public void Foo()
 
 var form = new FormWithPictureBox();
 if (form.IsImageSet) // use the new property
 
 
 

share|improve this answer

answered Mar 25 at 7:26

khlrkhlr

3,84832132

add a comment | 

The PictureBox is (like any other control of your form) a member that's not publicly accessible. Hence an access like this won't work:

public class SomeOtherContext

 public void Foo()
 
 var form = new FormWithPictureBox();
 if (form.pictureBox1.Image != null) // this won't work
 
 
 

What you'll need to do is to generate a public possibility for users of your form to check for a set image. You can e.g. do so by creating a property that's sole purpose is to expose this info:

public class FormWithPictureBox : Form

 public bool IsImageSet
 
 get
 
 // the picturebox is accessible from within the form itself
 return pictureBox1.Image != null;
 
 


public class SomeOtherContext

 public void Foo()
 
 var form = new FormWithPictureBox();
 if (form.IsImageSet) // use the new property
 
 
 

share|improve this answer

answered Mar 25 at 7:26

khlrkhlr

3,84832132

public class SomeOtherContext

 public void Foo()
 
 var form = new FormWithPictureBox();
 if (form.pictureBox1.Image != null) // this won't work
 
 
 

public class FormWithPictureBox : Form

 public bool IsImageSet
 
 get
 
 // the picturebox is accessible from within the form itself
 return pictureBox1.Image != null;
 
 


public class SomeOtherContext

 public void Foo()
 
 var form = new FormWithPictureBox();
 if (form.IsImageSet) // use the new property
 
 
 

share|improve this answer

answered Mar 25 at 7:26

khlrkhlr

3,84832132

answered Mar 25 at 7:26

khlrkhlr

3,84832132

answered Mar 25 at 7:26

khlrkhlr

3,84832132