I want to show image with extension *.ico
and I use Stream
to do it. But I have a problem that.
With Extension *.jpg
, *.bmp
... Image show ok but *.ico
, it does not show
Here is my code:
private void OutputStream(string fileName)
{
try
{
Stream dataStream = null;
SPSecurity.RunWithElevatedPrivileges(delegate()
{
SPFile spFile = web.GetFile(fileName);
dataStream = spFile.OpenBinaryStream();
this.HandleOutputStream(dataStream);
});
}
catch (System.Threading.ThreadAbortException exTemp)
{
logger.Error("KBStreamPicture::OutputStream", exTemp);
}
catch (Exception ex)
{
//System.Diagnostics.Debug.Write("OutputStream::" + ex);
logger.Error("KBStreamPicture::OutputStream", ex);
}
}
and
private void HandleOutputStream(Stream dataStream)
{
const int bufferSize = 16384; //16KB
using (Stream file = dataStream)
{
if (file != null)
{
this.Page.Response.Clear();
this.Page.Response.Cache.SetCacheability(System.Web.HttpCacheability.Private);
this.Page.Response.Cache.SetExpires(DateTime.Now.AddMinutes(20)); //only cache 20 minutes
byte[] buffer = new byte[bufferSize];
int count = file.Read(buffer, 0, bufferSize);
while (count > 0)
{
if (this.Page.Response.IsClientConnected)
{
this.Page.Response.OutputStream.Write(buffer, 0, count);
count = file.Read(buffer, 0, bufferSize);
}
else
{
count = -1;
}
}
this.Page.Response.End();
}
}
}
Please help me to resolve that problem.
You're not setting the ContentType property on the Response
. Try setting the ContentType
to image/x-icon
(please note that the "correct" content type may be image/vnd.microsoft.icon
, but this post seems to indicate you may run into problems with that type).
The code should look something like:
this.Page.Response.Clear();
this.Page.Response.Cache.SetCacheability(System.Web.HttpCacheability.Private);
this.Page.Response.Cache.SetExpires(DateTime.Now.AddMinutes(20));
this.Page.Response.ContentType = "image/x-icon";
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