Hi Angelap,
I believe this should be viewed as 2 separate questions:
1) How do I add an on-click event to follow a URI/URL?
This depends on where you want the link to appear, but essentially you can use the OnClick of the Grid, or OnLoad of the form as you mentioned..
2) How do I style a string field to look like a link?
This can be achieved by adding css to the Item (assuming you are using a property called myproperty) you could set the default value for css to
.myproperty{
color: #0000AA; /* Change this with links color*/
cursor: pointer;
text-decoration: underline;
};
Many thanks,
Martin