md-dialog: pass additional content

[alexciesielski]

Bug, feature request, or proposal:

Feature request

What is the expected behavior?

I would like to pass a string to the dialog when opening it with this.dialog.open(...) to be displayed in the dialog itself.

What is the current behavior?

I can't pass additional data directly to the dialog.

What is the use-case or motivation for changing an existing behavior?

I can pass data using an additional service, but that seems overkill when I just want to pass a string.

Currently, you can set options for the dialog, it would be nice to have a data field in there to pass additional content along.

[codef0rmer]

@ciesielskico You should grab the componentInstance to pass the data in:

let dialogRef = this.dialog.open(MyComponent);
dialogRef.componentInstance['myProperty'] = "Value"

[alexciesielski]

Looks hacky but I'll try this, thanks.

Still, I think there should be a more elegant and straightforward way to do the same.

[crisbeto]

Closing as a duplicate of #2181 which has a pending PR.

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