Response.Flush not working ASP.NET

Question

I have an aspx page where i am Processing a large number of records from a table and doing some manipulation.after each manipuation,(each record),I have a Response.Write("Record : "+rec); Response.Flush()

I have set Response.Buffer property to false. It is working fine But If i want to render the output as a table row,its not working as of Response.Write After fininshing all the records in the loop only , the table is getting printed

How to solve this ?

Answer 1

Most browsers will not render tables until the table is complete. You can try making the table fixed format, css table-layout: fixed, along with specifying column sizes.

Answer 2

I will add to Darryl answer that you can close the table as soon as posible and then fill the rest of the table using JQuery or similar.

Answer 3

I would guess that the table doesn't exist from the browser's perspective until you write out the end table tag.

You could write out a bunch of divs with a stylesheet controlling their width.

.column1 { width: 40px; }
.column2 { width: 40px; }

Response.Write("<div id=\"column1\">some text</div><div id=\"column2\">some text</div>");
Response.Flush();

Or you could write out an entire table for each row...?

Response.Write("<table><tr><td>some text</td></tr></table>");
Response.Flush();

Answer 4

Definately the table. To prove this to yourself, change your table-markup-oriented response.Write()s to just plain text. you'll see it accumulate. If the table has to be this big and you want to render it from the server, you should fix the column sizes and break the table up into one-per-row or some other subset so content appears gradually as you want.

Answer 5

For anyone else having this problem...

Be aware that if your IIS server is compressing the output with GZIP, then it will seem to ignore all Response.Flush calls. This is turned on by default in IIS7 and on Windows 7.

And, if you are testing with Fiddler, be sure to turn on "Streaming" mode, or Fiddler will collect the flushed HTML and hold it until the connection is completed.