// get the value of hyperlink filed in asp.net


DataNavigateUrlFields="TestId" DataNavigateUrlFormatString="~/Test.aspx?TestId={0}" />

HyperLink hypTestLink = (HyperLink)Gv.Rows[gvRow.RowIndex].Cells[testLinkcolumnindex].Controls[0];
ViewStateLinkData = string.IsNullOrWhiteSpace(hypTestLink .Text) ? 0 : Convert.ToInt32(hypTestLink .Text);

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