Making presentation column fields visible / editable at runtime

Question

Hi,
I am new to presenation.
In my presentation, suppose if i have 3 fields
First one is combo.. and other two are text fields.. Depending upon the value selected, i like to enable second text box ,disable thrid one..and vice-versa..
How can i enable / disable or change the editable property at runtime
Can any one help on this. Thanks in Advance

Answer 1

Hi,
There are three steps to doing this.
1. You first have to find out the names of the fields on the presentation you want to make visible or invisible. To do this, go into the BPM Object Presentation -> click the field -> look at the Properties tab on the right and see the name in the "Name" field. It is normally "text1" or "text2", etc.. This is the field name you will want to use in the logic in the next step. A very common mistake is to use the attributes name (e.g. "customerName") in the logic in the next step. This will not work - you must always use the field's name instead.
2. Create a method in the BPM Object with logic similar to this:
// see which value was picked from the combo dropdown
if valueInCombo = "A" then
    // make the attribute associated with the "text1" field on the presentation
    //   not visible
    setVisible this
      using componentId = “text1”,   // the field name
          visible = false,       // “true” to make visible
          collapsed = true     // removes the space vacated
    // make the attribute associated with the "text2" field on the presentation
    //     visible
    setVisible this
      using componentId = “text2”,   // the field name
          visible = true,      
          collapsed = false
elseif valueInCombo = "B" then
    // make the attribute associated with the "text1" field on the presentation
    //    visible
    setVisible this
      using componentId = “text1”,   // the field name
          visible = true,      
          collapsed = false 
    // make the attribute associated with the "text2" field on the presentation
    //     not visible
    setVisible this
      using componentId = “text2”,   // the field name
          visible = false,      
          collapsed = true
end 3. On the presentation, click the combo dropdown. Once again look at the Properties tab on the right and click the "On Change Invoke" property. Once clicked, pick the method you just created in the above step.
Hope this helps,
Dan