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Bind ID dynamically on a textbox

Mark M 2340 11 Dec 2014

I have

<asp:TextBox ID="txtBidAmmount<%#Eval("id") %>" Width="250" runat="server"></asp:TextBox>

That wouldn't work and I have read some options that I have to replace the " with ', so I did:

<asp:TextBox ID='txtBidAmmount<%#Eval("id") %>' Width="250" runat="server"></asp:TextBox>

But I get:

Parser Error Message: 'txtBidAmmount<%#Eval("id") %>' is not a valid identifier.

Ask by Mark M

Updated 12 Dec 2014

2 Answers

Takeshi Okada 12 Dec 2014

<asp:GridView ID="EmployeesNoSuffix" runat="server"
   
AutoGenerateColumns="false" ClientIDMode="Predictable">
<Columns>
   
<asp:TemplateField HeaderText="ID">
        
<ItemTemplate>
             
<asp:Label ID="EmployeeID" runat="server"
Text='<%# Eval("ID") %>' />
        
</ItemTemplate>
    </asp:TemplateField>
   
<asp:TemplateField HeaderText="Name">
        
<ItemTemplate>
             
<asp:Label ID="EmployeeName"       
runat="server" Text='<%# Eval("Name") %>'
/>
        
</ItemTemplate>   
</asp:TemplateField>
</Columns>
</asp:GridView>

Output HTML

<table id="EmployeesNoSuffix" style="border-collapse: collapse" 
   
cellspacing="0" rules="all" border="1">
  <tbody>
    <tr>
       <th scope="col">ID</th>
       <thscope="col">Name</th>
    </tr>
    <tr>
      
<td><span id="EmployeesNoSuffiEmployeeID_0">1</span></td>
      
<td><span id="EmployeesNoSuffiEmployeeName_0">EmployeeName1</span></td>
    </tr>
    ...
    <tr>
      <td>
         <span id="EmployeesNoSuffiEmployeeID_8">9</span>
      </td>
      <td>
         <span id="EmployeesNoSuffiEmployeeName_8">EmployeeName9</span>
      </td>
    </tr>
  </tbody>
</table>

Anonymous User 12 Dec 2014

try this

ID='<%# "txtBidAmmount" + eval("id") %>'

OR

ID='<%# Eval("id", "txtBidAmmount {0}") %>'

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