diff --git a/SCP/Views/SupplierData/SCP_INVOICE_CREATE.aspx b/SCP/Views/SupplierData/SCP_INVOICE_CREATE.aspx
index b6de6b5..7f5e3ea 100644
--- a/SCP/Views/SupplierData/SCP_INVOICE_CREATE.aspx
+++ b/SCP/Views/SupplierData/SCP_INVOICE_CREATE.aspx
@@ -81,8 +81,8 @@
                         <%--<f:BoundField runat="server" HeaderText="可用开票数量" ColumnID="CanQty" DataField="CanQty" />--%>
                         <f:TemplateField Width="90px" HeaderText="开票数量">
                             <ItemTemplate>
-                                <asp:TextBox ID="txtQty" runat="server" Width="80px" onkeyup="this.value=this.value.replace(/,'')"  onafterpaste="this.value=this.value.replace(/-?\D/g,'')"
-                                     Text='<%# Eval("InputQty") %>'   ></asp:TextBox>
+                                <asp:TextBox ID="txtQty" runat="server" Width="80px" onkeyup="this.value=this.value.replace(/,'')"  onafterpaste="this.value=this.value.replace(/-?\D/g,'')"                          
+                                    MaxLength="12"  Text='<%# Eval("InputQty") %>'   ></asp:TextBox>
                             </ItemTemplate>
                         </f:TemplateField>
                         <f:BoundField runat="server" HeaderText="合同价格" ColumnID="" DataField="ContractPrice" Hidden="true" />