How to send data to controls which is in MDI Parent

[Satish]

Hi,

I am facing problem with, sending data frm mdi child to
mdi parent.

I have search Dropdown in MDI form, depend on selection,
or enter string(its like IE URL functionality) and click
search button, i am displaying Details form with all the
details. Their i have Delete button. When we click on
delete button, we have to delete the record from database
and at the same time, i have to delete record from the
drop down.

Here i have one private array list, every time depend on
search i am modifying array list and binding it to the
drop down.

I have changed drop down Modifiers to public and tried to
access from the child form. Its not accessing the
control. Any one will send how to solove this problem.

Waiting for replaies.....

Regards
Satish

[Vijaye Raji]

You probably didn't do a proper type-cast. If you have the control public
you should be able to access it.

Some other possible solutions:

1. Have an event on the Child form and register the parent as a listener to
the "Delete" button event.
2. Add a static method on the MDI parent's class that does the job for you
(on the currently active MDI form)

-vJ

"Satish" <ds*********@ho tmail.com> wrote in message
news:07******** *************** *****@phx.gbl.. .

Hi,

I am facing problem with, sending data frm mdi child to
mdi parent.

I have search Dropdown in MDI form, depend on selection,
or enter string(its like IE URL functionality) and click
search button, i am displaying Details form with all the
details. Their i have Delete button. When we click on
delete button, we have to delete the record from database
and at the same time, i have to delete record from the
drop down.

Here i have one private array list, every time depend on
search i am modifying array list and binding it to the
drop down.

I have changed drop down Modifiers to public and tried to
access from the child form. Its not accessing the
control. Any one will send how to solove this problem.

Waiting for replaies.....

Regards
Satish

[Satish]

I have written static method in MDI and tried to access
from teh chaild form. like

//this is in Child form Delete event
MDIform frm=null;
frm.Delete_Cont actName();
this.Close();

this is in MDI form
public static void Delete_ContactN ame()
{
try
{
//array list
alContacts.Remo ve(cmbContact.T ext.Trim());
cmbContact.Text ="";
bContactFill=fa lse;
cmbContact.Data Source=null;
cmbContact.Data Source=alContac ts;
//cmbContact.Sele ctedIndex=0;
bContactFill=tr ue;
}
catch{}
finally{}
}

while compiling the source its giving error that
MDIform.cmbCont act denotes a 'field' where a class was
expected

-----Original Message-----
You probably didn't do a proper type-cast. If you have the control publicyou should be able to access it.

Some other possible solutions:

1. Have an event on the Child form and register the parent as a listener tothe "Delete" button event.
2. Add a static method on the MDI parent's class that does the job for you(on the currently active MDI form)

-vJ

"Satish" <ds*********@ho tmail.com> wrote in message
news:07******* *************** ******@phx.gbl. ..

Hi,

I am facing problem with, sending data frm mdi child to
mdi parent.

I have search Dropdown in MDI form, depend on selection, or enter string(its like IE URL functionality) and click search button, i am displaying Details form with all the details. Their i have Delete button. When we click on
delete button, we have to delete the record from database and at the same time, i have to delete record from the
drop down.

Here i have one private array list, every time depend on search i am modifying array list and binding it to the
drop down.

I have changed drop down Modifiers to public and tried to access from the child form. Its not accessing the
control. Any one will send how to solove this problem.

Waiting for replaies.....

Regards
Satish

.

[Vijaye Raji]

You can work around it if you know there's going to be only one MDIform per
process.

Create a new static variable in the MDIform of type MDIform and in the
constructor of MDIform, set the current instance to this variable... like
this..

public class MDIform : Form
{
...
...
private static MDIform mainForm;

/// Constructor
public MDIForm()
{
...
...
mainForm = this;
}
}

And in your static function Delete_ContactN ame(), use the mainForm to access
the members... like mainForm.cmbCon tact.Text = "";

Ok... all this aside, I think using static members for this is a bad design.
You should look into using Events and delegates. Set up an event that gets
triggered when the Delete button is clicked and listen for it from the
MainForm.

Good Luck
-vJ

"Satish" <ds*********@ho tmail.com> wrote in message
news:07******** *************** *****@phx.gbl.. .

I have written static method in MDI and tried to access
from teh chaild form. like

//this is in Child form Delete event
MDIform frm=null;
frm.Delete_Cont actName();
this.Close();

this is in MDI form
public static void Delete_ContactN ame()
{
try
{
//array list
alContacts.Remo ve(cmbContact.T ext.Trim());
cmbContact.Text ="";
bContactFill=fa lse;
cmbContact.Data Source=null;
cmbContact.Data Source=alContac ts;
//cmbContact.Sele ctedIndex=0;
bContactFill=tr ue;
}
catch{}
finally{}
}

while compiling the source its giving error that
MDIform.cmbCont act denotes a 'field' where a class was
expected

-----Original Message-----
You probably didn't do a proper type-cast. If you have

the control public

you should be able to access it.

Some other possible solutions:

1. Have an event on the Child form and register the

parent as a listener to

the "Delete" button event.
2. Add a static method on the MDI parent's class that

does the job for you

(on the currently active MDI form)

-vJ

"Satish" <ds*********@ho tmail.com> wrote in message
news:07******* *************** ******@phx.gbl. ..

Hi,

I am facing problem with, sending data frm mdi child to
mdi parent.

I have search Dropdown in MDI form, depend on selection, or enter string(its like IE URL functionality) and click search button, i am displaying Details form with all the details. Their i have Delete button. When we click on
delete button, we have to delete the record from database and at the same time, i have to delete record from the
drop down.

Here i have one private array list, every time depend on search i am modifying array list and binding it to the
drop down.

I have changed drop down Modifiers to public and tried to access from the child form. Its not accessing the
control. Any one will send how to solove this problem.

Waiting for replaies.....

Regards
Satish

.