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how to throw error when dropdown by index is blank

Posted on Oct 24, 2006 at 07:51 PM 17 Views

Hi,

In the dropdowm by index, I want to throw error if the selected value is blank, how can I do that?. I tried to get value something like here.

String = wdContext.currentT_Material.getMatnr();

if I select blank, I am getting null pointer exception.

T_material is from R/3. How can I throw error if I select blank?.

Thanks,

Sunita.

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  • Best Answer
    author's profile photo Former Member
    Former Member
    Posted on Oct 24, 2006 at 07:54 PM
    2 
    if (wdContext.currentT_Material() == null)
{
  /* nothing selected */
}

    Armin

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    • Former Member Former Member
      Oct 25, 2006 at 08:18 AM

      Hi

      One more thing, whats the standard way (efficient way) to process the mandatory field. Since I have more than 10 fields, If mandatory field is blank, I want to throw error.

      public void checkMandatory(String name,String filedContextID)

      {

      String attributeValue = wdContext.currentContextElement.getAttributeAsText(filedContextID);

      String attributeinfo = wdCotext.getNodeInfo().getAttribute(filedContextID);

      if(attributeValue ==" ")

      {

      msgMgr.reportContextAttributeMessage(this.wdContext.currentContextElement(), attributeInfo,

      IMessageSimpleErrors..MISSING_INPUT, new Object[] {"Name"},true);

      }

      }

      Declare u context attribute name in current View method

      Where you used this method.

      This.checkMandatory("Ur errorMsg",Attributeof declaredView);

      Or Do u need to * red color ur input filed label do follow.

      set the property state as required for the input Field

      In the Label's property labelFor set the coressponding text field's Id.

      Thanks,

      Lohi

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  • author's profile photo Former Member
    Former Member
    Posted on Oct 25, 2006 at 05:13 AM
    0

    Sunita,

    I think the one which Roberto suggested will work fine. If u wanna throw an error message, u can either catch the exception and 'throw' it or u can use 'message manager'.

    if (wdContext.nodeT_Material().getLeadSelection() == -1)

    {

    IWDMessageManager msgmgr = wdComponentAPI.getMessageManager();

    msgmgr.reportException("No lead selection in dropdown", true);

    }

    Regards,

    Aparna .P

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