ORCP 52

A Postponement. When a cause is set and called for trial, it shall be tried or dismissed, unless good cause is shown for a postponement. At its discretion, the court may grant a postponement, with or without terms, including requiring any party whose conduct made the postponement necessary to pay expenses incurred by an opposing party.

B Absence of evidence. If a motion is made for postponement on the grounds of absence of evidence, the court may require the moving party to submit an affidavit or a declaration stating the evidence which the moving party expects to obtain. If the adverse party admits that such evidence would be given and that it be considered as actually given at trial, or offered and overruled as improper, the trial shall not be postponed. However, the court may postpone the trial if, after the adverse party makes the admission described in this section, the moving party can show that such affidavit or declaration does not constitute an adequate substitute for the absent evidence. The court, when it allows the motion, may impose such conditions or terms upon the moving party as may be just.