I have this code to insert picture from database to image control:
string strQuery = "select Pic from MEN where id='1'";
SqlCommand cmd = new SqlCommand(strQuery);
Convert.ToInt32(Request.QueryString["ImageID"]);
cmd.Parameters.Add("1", SqlDbType.Int).Value = Convert.ToInt32(Request.QueryString["ImageID"]);
DataTable dt = GetData(cmd);
if (dt != null)
{
Byte[] bytes = (Byte[])dt.Rows[0]["Pic"];
Response.Buffer = true;
Response.Charset = "";
Response.Cache.SetCacheability(HttpCacheability.NoCache);
//Response.ContentType = dt.Rows[0]["ContentType"].ToString();
Response.ContentType = dt.Rows[0]["PIC"].ToString();
Response.AddHeader("content-disposition", 开发者_如何学Go"attachment;filename=" + dt.Rows[0]["PIC"].ToString());
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
}
and this:
private DataTable GetData(SqlCommand cmd)
{
DataTable dt = new DataTable();
String strConnString = "server=" + Server + ";database=" + DataBase + ";UID=" + UID + ";password=" + PASS + ";";
SqlConnection con = new SqlConnection(strConnString);
SqlDataAdapter sda = new SqlDataAdapter();
cmd.CommandType = CommandType.Text;
cmd.Connection = con;
try
{
con.Open();
sda.SelectCommand = cmd;
sda.Fill(dt);
return dt;
}
catch
{
return null;
}
finally
{
con.Close();
sda.Dispose();
con.Dispose();
}
}
and this image:
<asp:image ID="Image2" runat="server" ImageUrl ="PhoneBook.aspx?ImageID=1"/>
but when I run this code I get "save picture on disk" and not insert to the image control
How to fix it ?
thanks
Try to remove:
Response.AddHeader("content-disposition", "attachment;filename="+dt.Rows[0]["PIC"].ToString());
also set the Response.ContentType
to the mime type of the image, not to the filename.
(here is the list of mime types: http://www.w3schools.com/media/media_mimeref.asp)
and then tell us if it works
Another option would be to create an asp.net handler (.ashx) instead of an aspx page.
Sample here: http://msdn.microsoft.com/en-us/library/ms972953.aspx and here: http://aspalliance.com/1322_Displaying_Images_in_ASPNET_Using_HttpHandlers.all
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