There are number of requirements when a developer wants to change the label of runbase dialog OK button in Dynamics AX. You can use the following code to change the label of OK button on Runbase dialog in AX
Insert the following code after the super() call in the putToDialog method
protected void putToDialog()
{
FormBuildCommandButtonControl commandButton;
;
super();
commandButton = dialog.dialogForm().control("OkButton");
commandButton.text("Yes");
}