inject JavaScript from code behind

[Angel]

Hi,

I have a page which shows a matrix of names and grades for given period. All
the grades fields must be editable and
they can be up to 200 fields (20 students with 10 grades each)
Since there are a lots of fields I do not want to go back and forth to
validate entered values on any change.
I decided that this may be achieved with some JavaScript functions to
validate some controls and to calculate average and total values of other
controls on change of any editable fields.
On change value of input fields JavaScript function will check if this is a
valid value an if so it will calculate values of average and total fields
and update their values.
I use Textbox web control, I also add Attribute("onChange","return
validate(string id) ) to control to make it call proper JavaScript
function.

The valid grades are loaded from Database and need to be injected at run
time in the client html.
My problem is that I do not know how to inject(insert) this values as an
array in the client html so my function will use this values to validate the
user entry;

Thanks
Angel

[Hermit Dave]

use StringBuilder to builder a string which will represent a
<script language=javascript>
// your javascript array definition here
</script>

StringBuilder sb = new StringBuilder();
sb.Appent("<script language=javascript>\n");
sb.Append(" var myArray[5];\n")
sb.Append("myArray[0] = " + serversideArray_or_list[0] + "\n");
// add more array items or use a for loop etc.
sb.Appent("</script>\n");
Page.RegisterClientsideScript("yourscriptreference ", sb.ToString());

something like this

--

Regards,

Hermit Dave
(http://hdave.blogspot.com)
"Angel" <an*****@hotmail.com> wrote in message
news:OF**************@TK2MSFTNGP09.phx.gbl...

Hi,

I have a page which shows a matrix of names and grades for given period. All the grades fields must be editable and
they can be up to 200 fields (20 students with 10 grades each)
Since there are a lots of fields I do not want to go back and forth to
validate entered values on any change.
I decided that this may be achieved with some JavaScript functions to
validate some controls and to calculate average and total values of other
controls on change of any editable fields.
On change value of input fields JavaScript function will check if this is a valid value an if so it will calculate values of average and total fields
and update their values.
I use Textbox web control, I also add Attribute("onChange","return
validate(string id) ) to control to make it call proper JavaScript
function.

The valid grades are loaded from Database and need to be injected at run
time in the client html.
My problem is that I do not know how to inject(insert) this values as an
array in the client html so my function will use this values to validate the user entry;

Thanks
Angel

[Karl Seguin]

Or you could use the Page.RegisterArrayDeclaration

something like Page.RegisterArrayDeclaration("myArray", "1,2,3,4,5,6,7");

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/
"Hermit Dave" <he************@CAPS.AND.DOTS.hotmail.com> wrote in message
news:O7**************@TK2MSFTNGP11.phx.gbl...

use StringBuilder to builder a string which will represent a
<script language=javascript>
// your javascript array definition here
</script>

StringBuilder sb = new StringBuilder();
sb.Appent("<script language=javascript>\n");
sb.Append(" var myArray[5];\n")
sb.Append("myArray[0] = " + serversideArray_or_list[0] + "\n");
// add more array items or use a for loop etc.
sb.Appent("</script>\n");
Page.RegisterClientsideScript("yourscriptreference ", sb.ToString());

something like this

--

Regards,

Hermit Dave
(http://hdave.blogspot.com)
"Angel" <an*****@hotmail.com> wrote in message
news:OF**************@TK2MSFTNGP09.phx.gbl...

Hi,

I have a page which shows a matrix of names and grades for given period. All

the grades fields must be editable and
they can be up to 200 fields (20 students with 10 grades each)
Since there are a lots of fields I do not want to go back and forth to
validate entered values on any change.
I decided that this may be achieved with some JavaScript functions to
validate some controls and to calculate average and total values of other controls on change of any editable fields.
On change value of input fields JavaScript function will check if this is a

valid value an if so it will calculate values of average and total

fields and update their values.
I use Textbox web control, I also add Attribute("onChange","return
validate(string id) ) to control to make it call proper JavaScript
function.

The valid grades are loaded from Database and need to be injected at run time in the client html.
My problem is that I do not know how to inject(insert) this values as an
array in the client html so my function will use this values to validate

the

user entry;

Thanks
Angel

[Hermit Dave]

oh... never had to use one.. hmmm keep that in mind next time :)

--

Regards,

Hermit Dave
(http://hdave.blogspot.com)
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:e2**************@TK2MSFTNGP10.phx.gbl...

Or you could use the Page.RegisterArrayDeclaration

something like Page.RegisterArrayDeclaration("myArray", "1,2,3,4,5,6,7");

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/
"Hermit Dave" <he************@CAPS.AND.DOTS.hotmail.com> wrote in message
news:O7**************@TK2MSFTNGP11.phx.gbl...

use StringBuilder to builder a string which will represent a
<script language=javascript>
// your javascript array definition here
</script>

StringBuilder sb = new StringBuilder();
sb.Appent("<script language=javascript>\n");
sb.Append(" var myArray[5];\n")
sb.Append("myArray[0] = " + serversideArray_or_list[0] + "\n");
// add more array items or use a for loop etc.
sb.Appent("</script>\n");
Page.RegisterClientsideScript("yourscriptreference ", sb.ToString());

something like this

--

Regards,

Hermit Dave
(http://hdave.blogspot.com)
"Angel" <an*****@hotmail.com> wrote in message
news:OF**************@TK2MSFTNGP09.phx.gbl...

Hi,

I have a page which shows a matrix of names and grades for given period.

All

the grades fields must be editable and
they can be up to 200 fields (20 students with 10 grades each)
Since there are a lots of fields I do not want to go back and forth to
validate entered values on any change.
I decided that this may be achieved with some JavaScript functions to
validate some controls and to calculate average and total values of other controls on change of any editable fields.
On change value of input fields JavaScript function will check if this is

a

valid value an if so it will calculate values of average and total fields and update their values.
I use Textbox web control, I also add Attribute("onChange","return
validate(string id) ) to control to make it call proper JavaScript
function.

The valid grades are loaded from Database and need to be injected at run time in the client html.
My problem is that I do not know how to inject(insert) this values as

an array in the client html so my function will use this values to

validate the

user entry;

Thanks
Angel