The Caller
Say, your RunBase dialog calls a custom form which contains special selection settings for the RunBase object (which f.ex. cannot be integrated in the RunBase dialog due layout specifications). So you've placed a menu item button to your dialog. That way the user can call the custom form with the special selection settings:
DialogRunbase ret;
;
ret = super(dialog, forceOnClient);
ret.addMenuItemButton(MenuItemType::Display,
menuItemDisplayStr(MyRunBaseSelectionForm));
But once the custom form is open, how to geht a handle to the RunBase object? To grab the RunBase object you need to dig the callers:
FormRun formRunCaller; DialogRunBase dialogRunBase; MyRunBaseClass caller; ; formRunCaller = element.args().caller(); // returns the dialog's form
// returns a DialogRunBase object dialogRunBase = formRunCaller.args().caller();
// finally returns the RunBase object caller = dialogRunBase.runBaseBatch();
Once you have the handle to the RunBase object you can acceed all public parameter methods and even the RunBase's QueryRun object.
Notify the caller
If the user decide to close your custom form with confirmation, so you need to notify the RunBase object about the new data. The best way is to place this code in the method closeOK() on your custom form:
public void closeOk()
{
QueryRun qr = caller.queryRun();
;
qr.whatEverYouHaveToManipulate(...);
caller.parmThisAndThat(...);
super();
}
Update the dialog values
As the user shall see the setting changes, you need to update the dialog controls. That for you can use the method dialogUpdate():
public void closeOk()
{
QueryRun qr = caller.queryRun();
;
qr.whatEverYouHaveToManipulate(...);
caller.parmThisAndThat(...);
caller.dialogUpdate(); // updates at least query range fields
super();
}
If you want a little tutorial, you can download this sample project, demonstrates just what I tried to explain. Import the XPO file and open the class MyRunBaseClass, then click on the button "Pick customer".
Keep in mind, it's only a tutorial, the code is neither BP nor fool proofed!
Hope this can improve your coding skills :)
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