Calling WebService using Javascript :-)

[smartwebcoder]

Again I have Implemented a little thing but useful , this time I have
implemented how to save data using webService through javascript its
very fast

/
*****************************************************************************************/
Create Table to save info...

CREATE TABLE [dbo].[tblfav](
[fpid] [bigint] IDENTITY(1,1) NOT NULL,
[postid] [bigint] NULL,
CONSTRAINT [PK_tblfav] PRIMARY KEY CLUSTERED
(
[fpid] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY
= OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

Create SP to Save Info...

create proc aspx_sp_SaveFav
(
@postid bigint
)
as begin
Insert into tblfav (postid) values (@postid)
select @@IDENTITY
end
/
*******************************************************************************/
Code behind file that contains your ouwn Datasaving Logic... Change as
per your requirements

public static Int64 SaveFav(Int64 PostId)
{
Int64 result;
try
{
DbCommand dbComm =
DManager.DB.GetStoredProcCommand("aspx_sp_SaveFav");
DBManager.DB.AddInParameter(dbComm, "@postid",
DbType.Int64, PostId);
result =
Convert.ToInt64(DBManager.DB.ExecuteScalar(dbComm).ToString());
}
catch (Exception ex)
{
throw ex; ;
}
return result;
}
above function will return latest inserted ID return by SP we have
return above and we will use that no to chk wether the data saved or
not and will display simple alert message

/
******************************************************************************************/
Javascript function that will call webservice...

<script language="javascript" type="text/javascript">

function Add(postid)
{
aspx.SaveFav(postid,onComplete,onError);

}
function onComplete(result)
{
alert("successful");
}
function onError(result)
{
alert("Error");
}
</script>

/
************************************************************************************/
Now we will creatw a WebServise that will be called....

using System.Web.Script.Services;
[ScriptService]
public class aspx : System.Web.Services.WebService
{}

[WebMethod]
public Int64 SaveFav(Int64 postid)
{
try
{
Int64 i = Category.SaveFav(postid);
if (i > 0)
{
return 1;
}
else
{
return 0;
}
}
catch (Exception ex)
{
return -1;
}

}
/
**************************************************************************************/

Please modify above code as per your requirements................

Please feel free to comment on this Little post