How to get a usercontrol to automatically add code to the initialization code in a form...

[Simon Verona]

Hope somebody can help!

I want to automatically be able to add code to the initialize routine on a Windows form when I add a custom control that I've written to a form.

Specifically, I'm trying to data bind to a normal class. So I've extended the standard text box to include a field for object name and property name. I want to be able to add a line such as :

controlname.Dat aBindings.Add(" Text", objectName, "myPropertyName ")
I've tried using google and looking at the documentation but can't seem to find this... I don't know if there is an alternative way of doing it in the startup code of the form (I seem to have a thought that reflection could be used to get the instance of the object for the data binding code above but I can't work out how!!).

I would be grateful for any pointers.

Many thanks in advance

Simon

[One Handed Man \( OHM - Terry Burns \)]

I assume this is a webform you are talking about. If so, each userconrol has its owen Page_load event. In this you should be able to bind and object in the parent container, dont have time to look up the properties now but in psuedo I imagine if would be something like.
Me.Parent.Contr ol.DataBindings .Add( Text, me, Property)

--

OHM ( Terry Burns )
. . . One-Handed-Man . . .

Time flies when you don't know what you're doing

"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:OA******** ******@TK2MSFTN GP09.phx.gbl...
Hope somebody can help!

I want to automatically be able to add code to the initialize routine on a Windows form when I add a custom control that I've written to a form.

Specifically, I'm trying to data bind to a normal class. So I've extended the standard text box to include a field for object name and property name. I want to be able to add a line such as :

controlname.Dat aBindings.Add(" Text", objectName, "myPropertyName ")
I've tried using google and looking at the documentation but can't seem to find this... I don't know if there is an alternative way of doing it in the startup code of the form (I seem to have a thought that reflection could be used to get the instance of the object for the data binding code above but I can't work out how!!).

I would be grateful for any pointers.

Many thanks in advance

Simon

[Simon Verona]

Terry,

No it's a Windows Form..

It refers to my question last week about data binding to a simple object. Which works fine... except that you need to manually add some code to databind the text boxes to the object in your main form...

I'm trying to get is so that somehow this step is automated.

I've created an inherited text box that allows me to enter the name of the object and the property to bind to. This is the easy bit.. I'm still working on some way of getting the actual binding to be "automatic" ie not require the binding code to be added manually. I'd therefore like the binding code to be added automatically in the control intialization code where it sets all the control properties.. or alternatively, find some way of doing the binding from the control itself, once the object and property names are set...

Does this make sense?

Regards
Simon
"One Handed Man ( OHM - Terry Burns )" <news.microsoft .com> wrote in message news:eF******** ******@TK2MSFTN GP11.phx.gbl...
I assume this is a webform you are talking about. If so, each userconrol has its owen Page_load event. In this you should be able to bind and object in the parent container, dont have time to look up the properties now but in psuedo I imagine if would be something like.
Me.Parent.Contr ol.DataBindings .Add( Text, me, Property)

--

OHM ( Terry Burns )
. . . One-Handed-Man . . .

Time flies when you don't know what you're doing

"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:OA******** ******@TK2MSFTN GP09.phx.gbl...
Hope somebody can help!

I want to automatically be able to add code to the initialize routine on a Windows form when I add a custom control that I've written to a form.

Specifically, I'm trying to data bind to a normal class. So I've extended the standard text box to include a field for object name and property name. I want to be able to add a line such as :

controlname.Dat aBindings.Add(" Text", objectName, "myPropertyName ")
I've tried using google and looking at the documentation but can't seem to find this... I don't know if there is an alternative way of doing it in the startup code of the form (I seem to have a thought that reflection could be used to get the instance of the object for the data binding code above but I can't work out how!!).

I would be grateful for any pointers.

Many thanks in advance

Simon

[Herfried K. Wagner [MVP]]

* "One Handed Man \( OHM - Terry Burns \)" <news.microsoft .com> scripsit:

I assume this is a webform you are talking about.

The OP mentioned "Windows Form"...

:-)

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>

[Michael Maes]

Hi Simon,

I might be entirely "off track" but if I understand your issue well, you could use a "IComponentChan geService".
I have created a Component which "Watches" all Components/Controls Added, Removed, Property Edited, ... on a Windows Form.
You could also use a "IComponentChan geService" directly in your Custom Control.

Having this done you could catch the "OnComponentAdd ed"-Event and put some code in it to set your bindings.

As I said: I'm not sure if I fully understood your problem, but if I did I think this might be a solution.

Regards,

Michael
"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:%2******** ********@TK2MSF TNGP09.phx.gbl. ..
Terry,

No it's a Windows Form..

It refers to my question last week about data binding to a simple object. Which works fine... except that you need to manually add some code to databind the text boxes to the object in your main form...

I'm trying to get is so that somehow this step is automated.

I've created an inherited text box that allows me to enter the name of the object and the property to bind to. This is the easy bit.. I'm still working on some way of getting the actual binding to be "automatic" ie not require the binding code to be added manually. I'd therefore like the binding code to be added automatically in the control intialization code where it sets all the control properties.. or alternatively, find some way of doing the binding from the control itself, once the object and property names are set...

Does this make sense?

Regards
Simon
"One Handed Man ( OHM - Terry Burns )" <news.microsoft .com> wrote in message news:eF******** ******@TK2MSFTN GP11.phx.gbl...
I assume this is a webform you are talking about. If so, each userconrol has its owen Page_load event. In this you should be able to bind and object in the parent container, dont have time to look up the properties now but in psuedo I imagine if would be something like.
Me.Parent.Contr ol.DataBindings .Add( Text, me, Property)

--

OHM ( Terry Burns )
. . . One-Handed-Man . . .

Time flies when you don't know what you're doing

"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:OA******** ******@TK2MSFTN GP09.phx.gbl...
Hope somebody can help!

I want to automatically be able to add code to the initialize routine on a Windows form when I add a custom control that I've written to a form.

Specifically, I'm trying to data bind to a normal class. So I've extended the standard text box to include a field for object name and property name. I want to be able to add a line such as :

controlname.Dat aBindings.Add(" Text", objectName, "myPropertyName ")
I've tried using google and looking at the documentation but can't seem to find this... I don't know if there is an alternative way of doing it in the startup code of the form (I seem to have a thought that reflection could be used to get the instance of the object for the data binding code above but I can't work out how!!).

I would be grateful for any pointers.

Many thanks in advance

Simon

[Simon Verona]

Michael,

Thanks for the reply... I'm not 100% sure I'm following how I would use your advice!

I've done some more work on the subject, and ideally it looks like I need some way of dynamically "getting" the object that I want to bind to from within my control.

eg something like...

ObjectName="nam e_of_object_on_ form"
PropertyName="n ame_of_property _to bind_to"
dim obj as object
obj=XXXXXX(obje ctname) <---- this is the line I need which retrieves the object from the parent form.
me.databinding. add("text",obj, PropertyName)

I think if I could work this out then I would solve the problem?

Regards
Simon
"Michael Maes" <mi*****@merlot .com> wrote in message news:%2******** ********@tk2msf tngp13.phx.gbl. ..
Hi Simon,

I might be entirely "off track" but if I understand your issue well, you could use a "IComponentChan geService".
I have created a Component which "Watches" all Components/Controls Added, Removed, Property Edited, ... on a Windows Form.
You could also use a "IComponentChan geService" directly in your Custom Control.

Having this done you could catch the "OnComponentAdd ed"-Event and put some code in it to set your bindings.

As I said: I'm not sure if I fully understood your problem, but if I did I think this might be a solution.

Regards,

Michael
"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:%2******** ********@TK2MSF TNGP09.phx.gbl. ..
Terry,

No it's a Windows Form..

It refers to my question last week about data binding to a simple object. Which works fine... except that you need to manually add some code to databind the text boxes to the object in your main form...

I'm trying to get is so that somehow this step is automated.

I've created an inherited text box that allows me to enter the name of the object and the property to bind to. This is the easy bit.. I'm still working on some way of getting the actual binding to be "automatic" ie not require the binding code to be added manually. I'd therefore like the binding code to be added automatically in the control intialization code where it sets all the control properties.. or alternatively, find some way of doing the binding from the control itself, once the object and property names are set...

Does this make sense?

Regards
Simon
"One Handed Man ( OHM - Terry Burns )" <news.microsoft .com> wrote in message news:eF******** ******@TK2MSFTN GP11.phx.gbl...
I assume this is a webform you are talking about. If so, each userconrol has its owen Page_load event. In this you should be able to bind and object in the parent container, dont have time to look up the properties now but in psuedo I imagine if would be something like.
Me.Parent.Contr ol.DataBindings .Add( Text, me, Property)

--

OHM ( Terry Burns )
. . . One-Handed-Man . . .

Time flies when you don't know what you're doing

"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:OA******** ******@TK2MSFTN GP09.phx.gbl...
Hope somebody can help!

I want to automatically be able to add code to the initialize routine on a Windows form when I add a custom control that I've written to a form.

Specifically, I'm trying to data bind to a normal class. So I've extended the standard text box to include a field for object name and property name. I want to be able to add a line such as :

controlname.Dat aBindings.Add(" Text", objectName, "myPropertyName ")
I've tried using google and looking at the documentation but can't seem to find this... I don't know if there is an alternative way of doing it in the startup code of the form (I seem to have a thought that reflection could be used to get the instance of the object for the data binding code above but I can't work out how!!).

I would be grateful for any pointers.

Many thanks in advance

Simon

[Simon Verona]

to review how I got to this question.. maybe I've missed something obvious.

I want to create an inherited text box that can be "bound" to a object (this
object not being a dataset or anything else that can be "automatica lly bound
to").

I found that I can do this in code using a normal text box using:

dim myobj as myclass
txtbox.databind ings.add("text" ,myobj,"propert yname").

So, I thought that if I created an inherited textbox with extra properties
call "ObjectName " and "PropertyNa me" I would be able to key in the object
and propertyname into the textbox within the designer (which works fine)..
However, I'm now struggling to find a way to get this inherited text box to
"bind" using the dynamic properties set in the designer.. My aim is to do
all this so that the text box ends up being "bound" without adding any code
at runtime....

Does this clarify??

Thanks in advance

Simon

"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:2k******** *****@uni-berlin.de...

* "One Handed Man \( OHM - Terry Burns \)" <news.microsoft .com> scripsit:

I assume this is a webform you are talking about.

The OP mentioned "Windows Form"...

:-)

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>

[Michael Maes]

Hi Simon.

Just a "wild guess":

If your Object is on the Form or in the ComponentsTray, then you can iterate through that collection until you've found your Object during Design-Time. This can be done by capturing the OnComponentAdde d-Event of the IComponentChang eService (This service would be implemented in your custom control). You could also set a trigger in the OnComponentChan ged-Event when the Property of "PropertyNa me" has changed.

This all of course can only work if your Object to which you want to bind is on the Form or ComponentTray (during design-time).
If this approach could help you, I would be glad to "get you on the road" with the 'IComponentChan geService' .

Regards,

Michael
"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:uC******** ******@TK2MSFTN GP09.phx.gbl...
Michael,

Thanks for the reply... I'm not 100% sure I'm following how I would use your advice!

I've done some more work on the subject, and ideally it looks like I need some way of dynamically "getting" the object that I want to bind to from within my control.

eg something like...

ObjectName="nam e_of_object_on_ form"
PropertyName="n ame_of_property _to bind_to"
dim obj as object
obj=XXXXXX(obje ctname) <---- this is the line I need which retrieves the object from the parent form.
me.databinding. add("text",obj, PropertyName)

I think if I could work this out then I would solve the problem?

Regards
Simon
"Michael Maes" <mi*****@merlot .com> wrote in message news:%2******** ********@tk2msf tngp13.phx.gbl. ..
Hi Simon,

I might be entirely "off track" but if I understand your issue well, you could use a "IComponentChan geService".
I have created a Component which "Watches" all Components/Controls Added, Removed, Property Edited, ... on a Windows Form.
You could also use a "IComponentChan geService" directly in your Custom Control.

Having this done you could catch the "OnComponentAdd ed"-Event and put some code in it to set your bindings.

As I said: I'm not sure if I fully understood your problem, but if I did I think this might be a solution.

Regards,

Michael
"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:%2******** ********@TK2MSF TNGP09.phx.gbl. ..
Terry,

No it's a Windows Form..

It refers to my question last week about data binding to a simple object. Which works fine... except that you need to manually add some code to databind the text boxes to the object in your main form...

I'm trying to get is so that somehow this step is automated.

I've created an inherited text box that allows me to enter the name of the object and the property to bind to. This is the easy bit.. I'm still working on some way of getting the actual binding to be "automatic" ie not require the binding code to be added manually. I'd therefore like the binding code to be added automatically in the control intialization code where it sets all the control properties.. or alternatively, find some way of doing the binding from the control itself, once the object and property names are set...

Does this make sense?

Regards
Simon
"One Handed Man ( OHM - Terry Burns )" <news.microsoft .com> wrote in message news:eF******** ******@TK2MSFTN GP11.phx.gbl...
I assume this is a webform you are talking about. If so, each userconrol has its owen Page_load event. In this you should be able to bind and object in the parent container, dont have time to look up the properties now but in psuedo I imagine if would be something like.
Me.Parent.Contr ol.DataBindings .Add( Text, me, Property)

--

OHM ( Terry Burns )
. . . One-Handed-Man . . .

Time flies when you don't know what you're doing

"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:OA******** ******@TK2MSFTN GP09.phx.gbl...
Hope somebody can help!

I want to automatically be able to add code to the initialize routine on a Windows form when I add a custom control that I've written to a form.

Specifically, I'm trying to data bind to a normal class. So I've extended the standard text box to include a field for object name and property name. I want to be able to add a line such as :

controlname.Dat aBindings.Add(" Text", objectName, "myPropertyName ")
I've tried using google and looking at the documentation but can't seem to find this... I don't know if there is an alternative way of doing it in the startup code of the form (I seem to have a thought that reflection could be used to get the instance of the object for the data binding code above but I can't work out how!!).

I would be grateful for any pointers.

Many thanks in advance

Simon

[One Handed Man \( OHM - Terry Burns \)]

So he did, sorry I muffed it up !

--

OHM ( Terry Burns )
. . . One-Handed-Man . . .

Time flies when you don't know what you're doing

"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:2k******** *****@uni-berlin.de...

* "One Handed Man \( OHM - Terry Burns \)" <news.microsoft .com> scripsit:

I assume this is a webform you are talking about.

The OP mentioned "Windows Form"...

:-)

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>

[Simon Verona]

Michael,

If you have a code sample that you could post, I'd be eternally grateful ....

Regards
Simon
"Michael Maes" <mi*****@merlot .com> wrote in message news:eI******** ******@tk2msftn gp13.phx.gbl...
Hi Simon.

Just a "wild guess":

If your Object is on the Form or in the ComponentsTray, then you can iterate through that collection until you've found your Object during Design-Time. This can be done by capturing the OnComponentAdde d-Event of the IComponentChang eService (This service would be implemented in your custom control). You could also set a trigger in the OnComponentChan ged-Event when the Property of "PropertyNa me" has changed.

This all of course can only work if your Object to which you want to bind is on the Form or ComponentTray (during design-time).
If this approach could help you, I would be glad to "get you on the road" with the 'IComponentChan geService' .

Regards,

Michael
"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:uC******** ******@TK2MSFTN GP09.phx.gbl...
Michael,

Thanks for the reply... I'm not 100% sure I'm following how I would use your advice!

I've done some more work on the subject, and ideally it looks like I need some way of dynamically "getting" the object that I want to bind to from within my control.

eg something like...

ObjectName="nam e_of_object_on_ form"
PropertyName="n ame_of_property _to bind_to"
dim obj as object
obj=XXXXXX(obje ctname) <---- this is the line I need which retrieves the object from the parent form.
me.databinding. add("text",obj, PropertyName)

I think if I could work this out then I would solve the problem?

Regards
Simon
"Michael Maes" <mi*****@merlot .com> wrote in message news:%2******** ********@tk2msf tngp13.phx.gbl. ..
Hi Simon,

I might be entirely "off track" but if I understand your issue well, you could use a "IComponentChan geService".
I have created a Component which "Watches" all Components/Controls Added, Removed, Property Edited, ... on a Windows Form.
You could also use a "IComponentChan geService" directly in your Custom Control.

Having this done you could catch the "OnComponentAdd ed"-Event and put some code in it to set your bindings.

As I said: I'm not sure if I fully understood your problem, but if I did I think this might be a solution.

Regards,

Michael
"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:%2******** ********@TK2MSF TNGP09.phx.gbl. ..
Terry,

No it's a Windows Form..

It refers to my question last week about data binding to a simple object. Which works fine... except that you need to manually add some code to databind the text boxes to the object in your main form...

I'm trying to get is so that somehow this step is automated.

I've created an inherited text box that allows me to enter the name of the object and the property to bind to. This is the easy bit.. I'm still working on some way of getting the actual binding to be "automatic" ie not require the binding code to be added manually. I'd therefore like the binding code to be added automatically in the control intialization code where it sets all the control properties.. or alternatively, find some way of doing the binding from the control itself, once the object and property names are set...

Does this make sense?

Regards
Simon
"One Handed Man ( OHM - Terry Burns )" <news.microsoft .com> wrote in message news:eF******** ******@TK2MSFTN GP11.phx.gbl...
I assume this is a webform you are talking about. If so, each userconrol has its owen Page_load event. In this you should be able to bind and object in the parent container, dont have time to look up the properties now but in psuedo I imagine if would be something like.
Me.Parent.Contr ol.DataBindings .Add( Text, me, Property)

--

OHM ( Terry Burns )
. . . One-Handed-Man . . .

Time flies when you don't know what you're doing

"Simon Verona" <ne**@aphrodite uk.com> wrote in message news:OA******** ******@TK2MSFTN GP09.phx.gbl...
Hope somebody can help!

I want to automatically be able to add code to the initialize routine on a Windows form when I add a custom control that I've written to a form.

Specifically, I'm trying to data bind to a normal class. So I've extended the standard text box to include a field for object name and property name. I want to be able to add a line such as :

controlname.Dat aBindings.Add(" Text", objectName, "myPropertyName ")
I've tried using google and looking at the documentation but can't seem to find this... I don't know if there is an alternative way of doing it in the startup code of the form (I seem to have a thought that reflection could be used to get the instance of the object for the data binding code above but I can't work out how!!).

I would be grateful for any pointers.

Many thanks in advance

Simon