I need to open a some types of files like.jpg, word, .pdf when the user clicks on link in gridview. Right now i am using this code and its not opening up.
It is a web application and i have to open the file which is present in the local drive of user. I would be binding the path of file in NavigateUrl property of the hyperlink
<asp:hyperlink ID="HyplnkName" runat="server" NavigateUrl= '<%# ConfigurationManager.AppSettings["ImagesFilePath"]) %>' Target="_top" Text='<%# DataBinder.Eval(Container, "DataItem.FileName") %>' />
Here is what i used in my project
<asp:HyperLink ID="hlPdf" runat="server" NavigateUrl="~/PdfHandler.ashx" Target="_blank">Click to view PDF</asp:HyperLink>
This is ashx handler file
using System;
using System.Web;
using System.IO;
public class PdfHandler : IHttpHandler
{
public void ProcessRequest (HttpContext context)
{
byte[] data = File.ReadAllBytes(@"Your Path");
context.Response.ContentType = "application/pdf";
context.Response.OutputStream.Write(data, 0, data.Length);
}
public bool IsReusable {
get {
return false;
}
}
}
use OnRowDataBound instead:
aspx page:
<asp:GridView ID="GridView1" runat="server"
onrowdatabound="GridView1_RowDataBound">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:HyperLink ID="HL" runat="server" Target ="_blank"></asp:HyperLink>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
code behind:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
HyperLink hlink = (HyperLink)e.Row.FindControl("HL");
string url = "~/Docs/" + e.Row.Cells[1].Text;
hlink.NavigateUrl = url;
hlink.Text = "Read";
}
}
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