Is that possible to use a same user control in a page for multiple times?

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C#

Actually i'm having one user control called Account.
I need to use this control for various textboxes.

For Example..

InsurerName = (TextBox)(AssetInsurer.FindControl("Account"));
InsurerID = (TextBox)(AssetInsurer.FindControl("AccountID"));
SoldName = (TextBox)(AssetSales.FindControl("Account"));
SoldID = (TextBox)(AssetSales.FindControl("AccountID"));

In the above code i need to use same user control Accout for both insurer ans sales.


Here is my aspx code.....

<%@ Register TagPrefix="CC2" TagName="Manufacturer" Src="~/UserControls/WUCAccount.ascx" %>
..............
................
.................

<tr>
    <td class="label">
        <asp:Label ID="LblSoldTo" runat="server" Text="Sold To :" meta:resourceKey="LblSoldTo"></asp:Label>
    </td>
    <td>
        <CC2:Manufacturer ID="AssetSales" runat="server" TabIndex="132"></CC2:Manufacturer>
    </td>
    <td class="label">
        <asp:Label ID="LblInsurerID" runat="server" Text="Insurer Id :" meta:resourceKey="LblInsurerID"></asp:Label>
    </td>
    <td>
        <CC2:Manufacturer ID="AssetInsurer" runat="server" TabIndex="132"></CC2:Manufacturer>
    </td>
</tr>
..............
.................
....................

while executing the code in the .cs page i'm getting the error as
"

Object reference not set to an instance of an object.

"
in the below lines:

if (InsurerID.Text != "0")
{
	LQMasterAssetDataContext CDbIN = new LQMasterAssetDataContext();
	TB_MasterAssetInsurer AssInsurer = CDbIN.TB_MasterAssetInsurers.FirstOrDefault(C => C.mAIN_NUPKId == mobjGenlib.ConvertLong(InsurerID.Text));
	InsurerName.Text = AssInsurer.mAIN_VCAgentname;
}

if (SoldID.Text != "0")
{
	LQMasterAssetDataContext CDbIN = new LQMasterAssetDataContext();
	TB_MasterAsset AssSoldto = CDbIN.TB_MasterAssets.FirstOrDefault(C => C.mASS_NUPKId == mobjGenlib.ConvertLong(SoldID.Text));
	SoldName.Text = AssSoldto.mASS_mACC_NUPKId_Soldto.ToString();
}

Please help me to resolve this thanks in advance.