Help on controls used for facilitating inputs :
Text - boxes :
This provides the text-area for the value to be typed. The length allowed depends on the field according to which maximum length is set for each text-box control.
Combo - boxes :
These boxes give the list of values under respective field on clicking the arrow button. Required value can be selected from the list. In case the required value is not present in the list , the entry can be made by typing the value in the text-area of the control.
The new-entry becomes the member of the list, once record is saved.Thus this control helps in building a standard list of values for the field.
This allows only one value for the field.
List-boxes :
These boxes allow more than one value for the field. But no direct entry can be made on to the control.
For entering values or deleting values from this control, other controls have to be used.
HELP LIST BOX :
This list box loads the values already prevailing for the field in question. In case the required value is absent then a fresh entry can be made through the text-box above the list box. To move the fresh entry or one of the entries from the list box as the value for the respective field, command buttons with the arrows in the direction of the control have to be used.
When a entry is made into the text-box and if an existing value coincides with the characters typed in then the matching entry gets automatically selected in the list-box and can be moved there by.In case the existing value is not the correct match then the operator can continue with the value to be typed out.
The same help-list box is being used to select values for the search criteria along with the provision to select the logical operators (AND/OR) and (EQUAL TO/NOT EQUAL TO).