Comments by verma.vivek (Top 12 by date)

I want in details theory that when we have to get an undefined and null error.

<asp:Label ID="Label1" runat="server" Text="2 Js call">HHHH


<asp:Label ID="Label2" runat="server" Text="">

// show1() and show2() call in Label1//
========================================================================
function show1() {
var lb = document.getElementById('Label1').innerHTML;

document.getElementById("Label2").innerHTML = lb;
}

function show2() {
$.ajax({
type: "POST",
url: "JS2.aspx/GetCurrentTime",
data: '{name: "' + document.getElementById("Label2").innerHTML + '" }',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: OnSuccess,
failure: function (response) {
alert(response.d);
}
});
}
function OnSuccess(response) {
alert(response.d);
}

============================================================

[System.Web.Services.WebMethod]
public static string GetCurrentTime(string name)
{
return "Hello " + name + Environment.NewLine + "The Current Time is: "
+ DateTime.Now.ToString();
}

===============================

PROBLEM is here
data: '{name: "' + document.getElementById("Label2").innerHTML + '" }'

I did not pass Label2 value here , so its show undefiend.Pls help me

Actually I am New, and I have in problem how to passed in the ajax call (data: {})

then how to receive. give me some example or demo...pls

Its really help to me

I have not write any code. I am new, just want to validate.
Textbox accept numeric and alphabet, bur always start with alphabet.

show all code...

I already read this, but didn't get exact solution. Pls suggest...

1. I should not need data, Only Columns Name.
2. and The sheet name of Excel is same as Table Name.
3. and on the same Excel file use no. of sheets as table name & their attributes(column name)

1. I should not need data, Only Columns Name.
2. The sheet name Excel is same as Table Name.