Using a component to add a control to a form

[Guest]

Hi!

I would like to use a component to add a control to a form. This will be
used to make a component that can enable/disable visual features on a form
without making every feature a toolbox item.

I can add and remove the control to the forms component container by using
the following code:

private bool m_bDisplayTextBox = false;
private TextBox tbTest = new TextBox();

[DefaultValue(false)]
public bool DisplayTextBox
{
get { return(m_bDisplayTextBox); }
set
{
if(value == true) this.Container.Add(tbTest);
else this.Container.Remove(tbTest);

m_bDisplayTextBox = value;
}
}


This will make the TextBox visible in the dropdown list in the properties
browser, but it will not be visible on the form itself. I have pined this
down to the fact that there is no line containing
"this.Controls.Add(this.textBox1);" added to "Windows Form Designer generated
code" in the Form class.

How can I also get the "this.Controls.Add(this.textBox1);" added to the Form
class "Windows Form Designer generated code"?


BR
Christian Wikander

 

[Joey Calisay]

you should use a designer for your form, and there use the createcomponent
method

 

[Guest]

Thanks for the quick response.

I don't quite understand. Maybe it's not possible, but I would like to add
the component to the form, and be setting some attributes of the component I
want to create one or more controls on the form. Can you give me another hint
in the right direction?

you should use a designer for your form, and there use the createcomponent
method

Hi!

I would like to use a component to add a control to a form. This will be
used to make a component that can enable/disable visual features on a form
without making every feature a toolbox item.

I can add and remove the control to the forms component container by using
the following code:

private bool m_bDisplayTextBox = false;
private TextBox tbTest = new TextBox();

[DefaultValue(false)]
public bool DisplayTextBox
{
get { return(m_bDisplayTextBox); }
set
{
if(value == true) this.Container.Add(tbTest);
else this.Container.Remove(tbTest);

m_bDisplayTextBox = value;
}
}


This will make the TextBox visible in the dropdown list in the properties
browser, but it will not be visible on the form itself. I have pined this
down to the fact that there is no line containing
"this.Controls.Add(this.textBox1);" added to "Windows Form Designer generated
code" in the Form class.

How can I also get the "this.Controls.Add(this.textBox1);" added to the Form
class "Windows Form Designer generated code"?


BR
Christian Wikander

 

[Joey Callisay]

I hope this link helps:

http://www.divil.co.uk/net/articles/designers/hosting.asp

try to browse other articles from this domain...

Thanks for the quick response.

I don't quite understand. Maybe it's not possible, but I would like to add
the component to the form, and be setting some attributes of the component I
want to create one or more controls on the form. Can you give me another hint
in the right direction?

you should use a designer for your form, and there use the createcomponent
method

message news:[email protected]...

Hi!

I would like to use a component to add a control to a form. This will be
used to make a component that can enable/disable visual features on a form
without making every feature a toolbox item.

I can add and remove the control to the forms component container by using
the following code:

private bool m_bDisplayTextBox = false;
private TextBox tbTest = new TextBox();

[DefaultValue(false)]
public bool DisplayTextBox
{
get { return(m_bDisplayTextBox); }
set
{
if(value == true) this.Container.Add(tbTest);
else this.Container.Remove(tbTest);

m_bDisplayTextBox = value;
}
}


This will make the TextBox visible in the dropdown list in the properties
browser, but it will not be visible on the form itself. I have pined this
down to the fact that there is no line containing
"this.Controls.Add(this.textBox1);" added to "Windows Form Designer generated
code" in the Form class.

How can I also get the "this.Controls.Add(this.textBox1);" added to

the
Form

class "Windows Form Designer generated code"?


BR
Christian Wikander

 

[Guest]

This was helpful but stil not. I get the same result if I try to get the
IDesignerHost service and create the control from there with the
CreateControl method. It's added to the list of components in the properties
window, but not to the actual form.

I hope this link helps:

http://www.divil.co.uk/net/articles/designers/hosting.asp

try to browse other articles from this domain...

Thanks for the quick response.

I don't quite understand. Maybe it's not possible, but I would like to add
the component to the form, and be setting some attributes of the component I
want to create one or more controls on the form. Can you give me another hint
in the right direction?

you should use a designer for your form, and there use the createcomponent
method

message Hi!

I would like to use a component to add a control to a form. This will be
used to make a component that can enable/disable visual features on a form
without making every feature a toolbox item.

I can add and remove the control to the forms component container by using
the following code:

private bool m_bDisplayTextBox = false;
private TextBox tbTest = new TextBox();

[DefaultValue(false)]
public bool DisplayTextBox
{
get { return(m_bDisplayTextBox); }
set
{
if(value == true) this.Container.Add(tbTest);
else this.Container.Remove(tbTest);

m_bDisplayTextBox = value;
}
}


This will make the TextBox visible in the dropdown list in the properties
browser, but it will not be visible on the form itself. I have pined this
down to the fact that there is no line containing
"this.Controls.Add(this.textBox1);" added to "Windows Form Designer
generated
code" in the Form class.

How can I also get the "this.Controls.Add(this.textBox1);" added to the
Form
class "Windows Form Designer generated code"?


BR
Christian Wikander

 

[Joey Callisay]

After creating the component with CreateControl, did you add it to the
control collection of the form?

This was helpful but stil not. I get the same result if I try to get the
IDesignerHost service and create the control from there with the
CreateControl method. It's added to the list of components in the properties
window, but not to the actual form.

I hope this link helps:

http://www.divil.co.uk/net/articles/designers/hosting.asp

try to browse other articles from this domain...

message news:[email protected]...

Thanks for the quick response.

I don't quite understand. Maybe it's not possible, but I would like to add
the component to the form, and be setting some attributes of the

component
I

want to create one or more controls on the form. Can you give me

another
hint

in the right direction?


:

you should use a designer for your form, and there use the createcomponent
method

message Hi!

I would like to use a component to add a control to a form. This

will
be

used to make a component that can enable/disable visual features

on a
form

without making every feature a toolbox item.

I can add and remove the control to the forms component container

by
using

the following code:

private bool m_bDisplayTextBox = false;
private TextBox tbTest = new TextBox();

[DefaultValue(false)]
public bool DisplayTextBox
{
get { return(m_bDisplayTextBox); }
set
{
if(value == true) this.Container.Add(tbTest);
else this.Container.Remove(tbTest);

m_bDisplayTextBox = value;
}
}


This will make the TextBox visible in the dropdown list in the properties
browser, but it will not be visible on the form itself. I have

pined
this

down to the fact that there is no line containing
"this.Controls.Add(this.textBox1);" added to "Windows Form Designer
generated
code" in the Form class.

How can I also get the "this.Controls.Add(this.textBox1);" added

to
the

Form
class "Windows Form Designer generated code"?


BR
Christian Wikander