Setting the value of a Html textbox from the Asp.Net codebehind

Question

I'm trying to set a value from the database into a Html component, the code is as follow:

<asp:RadioButtonList ID="rbFiltroCostesPre" runat="server" AutoPostBack="false" Width="286px">
   <asp:ListItem Selected="True" Value="A">All</asp:ListItem>
   <asp:ListItem Value="Greater">First 10</asp:ListItem>
   <asp:ListItem Value="GreaterThan">Greater than: &lt;input ID=&quottxtGreaterThan&quot; type=&quot;text&quot; &gt;</asp:ListItem>                                              
</asp:RadioButtonList>

The last ListItem has a Html tag inside, like:

<input id="txtGreaterThan" type="text"/>

, which has been transform by the Visual Web Development IDE.

Can I set it's value dynamically from the codebehind? Thx.

CAbbott · Accepted Answer · 2012-03-29 16:02:30Z

1

Sorry, but you can't do that with the managed ListItem control. What's happening in your page is it's setting the Text value of your ListItem with Greater than: <input ID=&quottxtGreaterThan" type="text" >.

What you could do is to use a RadioButton instead of a RadioButtonList and place a TextBox control next to the RadioButton. This would allow you to access it server-side.

edited Mar 29, 2012 at 16:02

answered Mar 29, 2012 at 15:57

CAbbott

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3 Comments

user1046355 Over a year ago

I'm not sure that's true. If I look the source code from the web page, the generated code, for the last item is: <label for="rbFiltroCostesPre_2"> Coste mayores que: <input id="txtCostesMayoresQue" class="numeric" type="text" name="txtCosteMayorQue" runat="server" style="width: 57px"> % </label> So you can see I still have an input with Id. Thx

CAbbott Over a year ago

That's because you're "faking it out" by placing HTML inside your text of the ListItem. So it will render the HTML, but it will not be a managed control. I've updated my answer with a suggestion on using a managed control.

user1046355 Over a year ago

Yes¡ the use of radioButton instead of radioButtonList does the trick. THKX. I would vote you, but I can't. Thanks again

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