i am beginner
The error is
Delivery Date : Open the calendar popup.
<asp:CommandField HeaderText="Delete" ShowDeleteButton="True" />
<pagerstyle backcolor="#2461BF" forecolor="White" horizontalalign="Center" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<editrowstyle backcolor="#2461BF" />
<alternatingrowstyle backcolor="White" />
<emptydatatemplate>
No Record
</emptydatatemplate>
<br />
<br />
<tr><td class="style4">
</td>
<td class="style1">
</td>
<td class="style5">
</td>
</tr>
<tr><td class="style6">Size :</td><td class="style7" colspan="2">
<asp:DropDownList ID="cmbSize" runat="server" AutoPostBack="True"
onselectedindexchanged="cmbSize_SelectedIndexChanged"
Height="26px" Width="128px">
</td></tr>
<tr><td class="style4">Amount :</td><td class="style1" colspan="2">
<asp:TextBox ID="txtAmt" runat="server"
>
</td></tr><tr><td class="style4">Extra Copies :</td><td class="style1">
colspan="2">
<asp:TextBox ID="txtNoofcopies" runat="server" AutoPostBack="true"
></td>
</tr>
<tr><td class="style4"> Extra Copy Amount :</td><td class="style1" colspan="2">
<asp:TextBox ID="TextBox1" runat="server" AutoPostBack="true" ontextchanged="TextBox1_TextChanged">
</td>
<tr><td class="style4">
Total</td><td class="style1" colspan="2">
<asp:TextBox ID="txtTot" runat="server" AutoPostBack="true">
</td>
<tr><td class="style4">
<asp:Label ID="Label3" runat="server" Text="Lamination">
</td><td class="style1" colspan="2">
<asp:DropDownList ID="Ddl" runat="server" Height="26px" Width="128px">
</td><tr>
<td class="style4">
<asp:Label ID="Label4" runat="server" Text="Lamination Amount">
</td>
<td class="style1" colspan="2">
<asp:TextBox ID="txtlami" runat="server" AutoPostBack="true"
ontextchanged="txtlami_TextChanged" >
</td></tr>
<tr><td class="style4"><asp:Label ID="Label1" runat="server" Text="Grand Total : " Font-Bold="true" Font-Size="Medium"
>
</td>
<td class="style1" colspan="2">
<asp:TextBox ID="txtgrandtot" runat="server" AutoPostBack="true"
>
</td>
<td>
</td></tr>
<tr><td class="style4">
<asp:Label ID="Label2" runat="server" Text="Paid Amount">
</td>
<td class="style1" colspan="2">
<asp:TextBox ID="txtPaid" runat="server" ontextchanged="txtPaid_TextChanged"></td>
<td>
</td></tr>
<tr><td class="style4">Balance</td>
<td class="style1" colspan="2">
<asp:TextBox ID="txtbalance" runat="server"
>
</td>
<td>
</td></tr>
<tr><td class="style4">
<asp:Button ID="btnAdd" runat="server" Text="Add" onclick="btnAdd_Click" /><asp:Button ID="btnSave" runat="server" Text="Save" onclick="btnSave_Click" />
<asp:Button ID="btnClear" runat="server" Text="Clear"
onclick="btnClear_Click" /></td>
<td class="style1" colspan="2"> </td>
<td>
</td></tr>
<br />
<asp:ImageButton ID="imgPrint" runat="server" ImageUrl="~/images/print.jpg"
onclick="imgPrint_Click" />
<br />
<asp:Label ID="lblError" runat="server" Text="">
<%--
<script type="text/javascript">
function ToggleCalendar()
{
var pnlCalendar = self.document.getElementById('pnlCalendar');
if (pnlCalendar.style.display == 'none')
{
ShowHideCalendar(true);
}
else
{
ShowHideCalendar(false);
}
}
function ShowHideCalendar(CanShow)
{
var pnlCalendar = self.document.getElementById('pnlCalendar');
if (CanShow==true)
{
pnlCalendar.style.display = "block";
var t = setTimeout("ShowHideCalendar(false)", 5000);
}
else
{
pnlCalendar.style.display = "none";
}
}
</script>
<style type="text/css">
.style1
{
width: 347px;
}
.style2
{
width: 60px;
}
</style>
--%>
<asp:Content ID="Content1" runat="server" contentplaceholderid="head">
<style type="text/css">
.style1
{
width: 476px;
text-align: left;
}
.style2
{
text-align: center;
}
.style4
{
text-align: right;
width: 445px;
}
.style5
{
width: 85px;
text-align: left;
}
.style6
{
text-align: right;
width: 445px;
height: 22px;
}
.style7
{
width: 476px;
text-align: left;
height: 22px;
}
</style>
</tr></tr></tr>