I just wanted to update this in case anyone else references it in the future.
While the *Check* fix was a solution to the *"precondition check"* error, I
was still unable to execute the ajax instructions inside the overridden
*"protected void onUpdate(AjaxRequestTarget target){}"* method.
For this reason, I decided to instead use *AjaxCheckBox*, alternatively
implementing all the logic in both overridden *"onUpdate"* methods. I used
an array of Boolean values to represent the values of the Model Objects
since I wouldn't be able to refer to the Model Object of the second
AjaxCheckBox in the onUpdate of the first as it has yet to be instantiated.
*Here's my Java code:*
final Button fileClaimButton;
final CheckBox cb1, cb2;
final boolean[] bArray = {false, false};
fileClaimButton = new AjaxButton("fileClaimButton"){
private static final long serialVersionUID = 1L;
@Override
protected void onSubmit(AjaxRequestTarget target, Form<?> form){
System.out.print("File Claim Executed");
}
};
fileClaimButton.setEnabled(false);
fileClaimButton.setOutputMarkupId(true);
fileClaimButton.setOutputMarkupPlaceholderTag(true);
cb1 = new AjaxCheckBox("cg1-cb1", new Model<Boolean>(false)){
@Override
protected void onUpdate(AjaxRequestTarget target) {
bArray[0] = getModelObject();
if (bArray[0] == true && bArray[1] == true)
fileClaimButton.setEnabled(true);
else
fileClaimButton.setEnabled(false);
target.add(fileClaimButton);
}};
cb2 = new AjaxCheckBox("cg1-cb2", new Model<Boolean>(false)){
@Override
protected void onUpdate(AjaxRequestTarget target) {
bArray[1] = getModelObject();
if (bArray[0] == true && bArray[1] == true)
fileClaimButton.setEnabled(true);
else
fileClaimButton.setEnabled(false);
target.add(fileClaimButton);
}};
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