Question

评价AnodeRate TotalRate 100 100 200

txtrate，txtanoderate n txttatalrate被添加到gridview的ItemTemplate中。

速率字段在数据库表中，而阳极率n总数不在数据库表中，totalrate是readonly，以便用户只能看到它的添加，这个添加将传递给txtrate字段n将在数据库中绑定该值。我也拿了 <asp:HiddenField ID="hdnTotalRt" runat="server" />因为它是只读的..

示例代码：

enter code here
<asp:TemplateField HeaderText="Standard Rate">
<ItemTemplate>
<asp:TextBox ID="txtRate" runat="server" BorderWidth="0.5pt" Text='<%# Bind("rate") %>' BorderColor="green" BackColor="#ffffcc" Width="40px"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="txtRate" runat="server" ValidationGroup="ValAtSave" >*</asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ControlToValidate="txtRate" runat="server" ValidationExpression="[0-9]*.?[0-9]*" ValidationGroup="ValAtSave">
 Nos Pls.
 </asp:RegularExpressionValidator>
          </ItemTemplate>
          </asp:TemplateField>
          <asp:TemplateField HeaderText="AnodeRate">
          <ItemTemplate>
          <asp:TextBox ID="txtAnodeRate" runat="server" BorderWidth="0.5pt"
          BorderColor="green" BackColor="#ffffcc" Width="40px"></asp:TextBox>
          </ItemTemplate>
          </asp:TemplateField>
          <asp:TemplateField HeaderText="Total Rate" >
          <ItemTemplate>
          <asp:TextBox ID="txtTotalRate" runat="server" onchange="javascript:calculate_total_rate()" BorderWidth="0.5pt" Enabled="false"
          BorderColor="green" BackColor="#ffffcc" Width="40px"></asp:TextBox>
          </ItemTemplate>
    </asp:TemplateField>

function calculate_total_rate()
{

document.getElementById('<%=txtTotalRate%>').value = ( document.getElementById('<%=txtRate.ClientID %>').value ) + (document.getElementById('<%=txtAnodeRate.ClientID %>').value );
document.getElementById('<%=hdnTotalRt.ClientID %>').value=  document.getElementById('<%=txtTotalRate.ClientID %>').value;

}

显示错误，因为当前上下文中不存在名称“txtRate”

Answer 1

你可以试试这个代码，（我有替换'='in 的document.getElementById（ '＆LT;％= txtTotalRate％GT;'）和的document.getElementById（'＆LT;％= txtAnodeRate.ClientID ％GT;”通过'＃'）

function calculate_total_rate()
{

document.getElementById('<%#txtTotalRate.ClientID%>').value = ( document.getElementById('<%=txtRate.ClientID %>').value ) + (document.getElementById('<%#txtAnodeRate.ClientID %>').value );
document.getElementById('<%=hdnTotalRt.ClientID %>').value=  document.getElementById('<%#txtTotalRate.ClientID %>').value;

}

添加两列n将其结果显示在gridview的第三列中

1 个答案: