How to make first value of dropdownlist as blank ? RSS

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  jeffcarter

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  How to make first value of dropdownlist as blank ?

  May 18, 2012 02:50 PM|LINK

  I want to add a top value in the dropdown list as "Please select" in the following code:

  <asp:DropDownList ID="employeenameDropDown" runat="server" >
  
  <asp:ListItem Value="jeff@yahoo.com">Jeff</asp:ListItem>
  <asp:ListItem Value="Lee@gmail.com">Lee</asp:ListItem>
  
  <asp:ListItem Value="johny@hotmail.com">johny</asp:ListItem>
  
  </asp:DropDownList>

  
  
  

  I know I can just insert (<asp:ListItem Value="">Please select</asp:ListItem>)

  But by doing this, if the user doesn't select the name, still he/she is able to submit the form and I am using "Value" for e-mail address and in t hat case, a blank value if passed without any e-mail address and it throws an error.

  How to add a first blank value in t he dropdown list and put a validation that the user HAVE to select his/her name ?

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  Ravi Kumar K...

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  Re: How to make first value of dropdownlist as blank ?

  May 18, 2012 02:55 PM|LINK

  Add this line to include Please Select as the first item in dropdown list
  
  <asp:ListItem Value="Please Select">Please Select</asp:ListItem>

  Then, add the RequiredField Validator  and set its initial value to "Please Select" to make sure user have to select something other than the initial value

  • Edited by Ravi Kumar Kurasala on May 18, 2012 02:56 PM
  • Edited by Ravi Kumar Kurasala on May 18, 2012 02:56 PM
  • Marked as answer by jeffcarter on May 18, 2012 03:28 PM
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  hoopslife

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  Re: How to make first value of dropdownlist as blank ?

  May 18, 2012 02:55 PM|LINK

  Use a validator.  Check this out:

  http://stackoverflow.com/questions/5089016/validator-for-drop-down-list-in-asp-net

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  AccuWebHosti...

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  Re: How to make first value of dropdownlist as blank ?

  May 18, 2012 03:25 PM|LINK

  Hi!

  Try following code:

  <asp:DropDownList ID="employeenameDropDown" runat="server" >
  
  <asp:ListItem Value="-1">Please Select</asp:ListItem>
  
  <asp:ListItem Value="jeff@yahoo.com">Jeff</asp:ListItem>
  
  <asp:ListItem Value="Lee@gmail.com">Lee</asp:ListItem>
  
  <asp:ListItem Value="johny@hotmail.com">johny</asp:ListItem>
  
  <asp:RequiredFieldValidator id="Rfv1" runat="server" ControlToValidate="stateDropDown" InitialValue="-1" ErrorMessage="Please Select Name!" Display="Dynamic" />

  Hope this will work for you.

  Regards.

  David @ AccuWebHosting.Com
  Top Windows VPS Provider
  • Edited by AccuWebHosting.Com on May 18, 2012 03:26 PM
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  jeffcarter

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  Re: How to make first value of dropdownlist as blank ?

  May 18, 2012 03:28 PM|LINK

  Thank you everyone