Question

I am trying to pass two parameters in my navigate URL to request them on my downloading.aspx file .

I always get this error …

Index (zero based) must be greater than or equal to zero and less than the size of the argument list.

This is my code :

HL.NavigateUrl = String.Format("downloading.aspx?path={0}&file={1}" + GetTheCurrentDirectory(selectedNodeValue) + fri.Name);

I don’t know why I get this error … Can someone help me ?

Thank you very much .

Answer 1

Do this instead:

HL.NavigateUrl = String.Format("downloading.aspx?path={0}&file={1}", GetTheCurrentDirectory(selectedNodeValue), fri.Name);

The parameters with String.Format should be separate parameters to the method call, or remove String.Format altogether:

HL.NavigateUrl = "downloading.aspx?path={0}&file={1}" + GetTheCurrentDirectory(selectedNodeValue) + fri.Name;