Solution to post submission data restrictions in ASP-application techniques

The solution to the problem is that, for a domain that needs to send large data, the data is split into a number of smaller than the limit before submitting the form, placed in several hidden fields, and emptied of the original field, then formally submits the form. Server-side or with Request.Form () read the data of each hidden field, and then in order to put them together on the line. The main code is as follows:

Note: You need to specify a div within the HTML code in the form to dynamically insert the hidden field into it.

= = = Client Sample Code = = =

Add in the HTML code in form: <div Id=divhidden></div&gt, add in the form tag: onsubmit= "Return Fnprehandle", Replace the Bigfield in the following code with the name of the domain in your form that submits the large database.
JavaScript code

Copy Code code as follows:

<script language=javascript>
The data is split and placed in the corresponding hidden field, which fires in the form's onsubmit event
function Fnprehandle (MyForm)
{
var icount; How many fields are split into
var strdata; Raw data
var imaxchars = 50000;//The maximum number of characters in a field is limited to 50K, taking into account that Chinese characters are double-byte
var Ibottleneck = 2000000;//If the article is more than 2M words, you need to prompt the user
var strhtml;

Raw data
Strdata = MyForm.BigField.value;

If the article is really too long, you need to remind the user
if (Strdata.length > Ibottleneck)
{
If confirm ("the article you are publishing is too long, it is recommended that you split it into several sections and publish separately.") \ NAND If you insist on submitting, note that it will take a long time to commit successfully. \ n \ ndo you insist on submitting? ") = = False)
return false;
}

icount = parseint (strdata.length/imaxchars) + 1;

Hdncount record the number of subdomains that the original data field is split into
strhtml = "<input type=hidden name=hdncount value=" + icount + ">";

Generate HTML code for each child domain
for (var i = 1; I <= icount; i++)
{
strHTML = strhtml + "\ n" + "<input type=hidden Name=hdnbigfield" + i + ">";
}

Dynamically insert HTML code for each hidden field within div (Divhidden) in form
Document.all.divHidden.innerHTML = strhtml;

Assigning values to each subdomain
for (var i = 1; I <= icount; i++)
{
myform.elements["Hdnbigfield" + I].value = strdata.substring ((i-1) * Imaxchars, I * imaxchars);
}

Empty the original data field
MyForm.BigField.value = "";
}
</script>

Server-side sample code asp/visual Basic code

Copy Code code as follows:

<%     
dim strdata      
dim intfieldcount     
dim i      

Intfieldcount = request.form ("Hdncount")      

for i=1 to intfieldcount     
strdata = strdata  & request.form ("Hdnbigfield"  & i)      
next      

response.write strdata     
%>