Hello,

I try to loop through all child relations and call a specific method I pass
as a parameter. But how is it done correctly, so that the passed method is
called by the relation child. Or any better solution is wellcome.

Thanks Peter


class SQLCursor: Datatable
{
protected delegate bool ChildUpdateHandler();

void UpdateDeleted
{
this.IterateChildRelations(new ChildUpdateHandler(this.UpdateDeleted));
}

void UpdateModified
{
this.IterateChildRelations(new ChildUpdateHandler(this.UpdateModified));
}

bool IterateChildRelations(ChildUpdateHandler doMethod)
{
foreach(DataRelation rel in this.ChildRelations)
{
//doMethod() // just calls itself, but not the rel.Table
//rel.doMethod() // unknown
}
}
}

Thank you for your answer. The Code was just a short hand excerpt to show
what I want to succeed. So no return value in the method body....

I will try of your examples.


Peter Schall wrote:

> Hello,
>
> I try to loop through all child relations and call a specific method I
> pass as a parameter. But how is it done correctly, so that the passed
> method is called by the relation child. Or any better solution is
> wellcome.
>
> Thanks Peter
>
>
> class SQLCursor: Datatable
> {
> protected delegate bool ChildUpdateHandler();
>
> void UpdateDeleted
> {
> this.IterateChildRelations(new ChildUpdateHandler(this.UpdateDeleted));
> }
>
> void UpdateModified
> {
> this.IterateChildRelations(new ChildUpdateHandler(this.UpdateModified));
> }
>
> bool IterateChildRelations(ChildUpdateHandler doMethod)
> {
> foreach(DataRelation rel in this.ChildRelations)
> {
> //doMethod() // just calls itself, but not the rel.Table
> //rel.doMethod() // unknown
> }
> }
> }