Regarding virtual method in c#.net

Question

1.00/5 (3 votes)

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I am getting error at protected override int RowCount()
{ } like no suitable method found to override.

What I have tried:

I have two projects in sln
In X project --> class is X1:Method is like.
protected override int RowCount()
{
logic......
return Count;
}

In Y project --> class is Y1

protected virtual int RowCount()
{
return -1;
}

Private void xx()
{
Count = RowCount();
}

I have added references also,please help me how to avoid error.

Posted 18-Jul-18 17:35pm

Member 11149766

Updated 18-Jul-18 19:49pm

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OriginalGriff · Accepted Answer · 2018-07-18T19:50:00

You can only override methods in classes that are derived from the original: so unless X1 is derived from Y1 you cannot override it's methods.

public class X1 : Y1
    {
    protected override int RowCount()
        {
        return Count;
        }
    }

public class Y1
    {
    protected int Count = 666;
    protected virtual int RowCount()
        {
        return -1;
        }
    }

Will work.