■ DateEdit 클래스의 Validating 이벤트를 사용하는 방법을 보여준다.
▶ MainForm.cs
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using System.ComponentModel; using DevExpress.XtraEditors; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : XtraForm { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.fromDateEdit.Validating += fromDateEdit_Validating; this.toDateEdit.Validating += toDateEdit_Validating; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region FROM 날짜 에디터 값 검증시 처리하기 - fromDateEdit_Validating(sender, e) /// <summary> /// FROM 날짜 에디터 값 검증시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void fromDateEdit_Validating(object sender, CancelEventArgs e) { if(this.fromDateEdit.EditValue == null) { e.Cancel = false; } else { if(this.toDateEdit.EditValue == null) { e.Cancel = false; } else { if(this.fromDateEdit.DateTime > this.toDateEdit.DateTime) { this.fromDateEdit.ErrorText = "FROM 날짜가 TO 날짜보다 큽니다."; e.Cancel = true; } } } } #endregion #region TO 날짜 에디터 값 검증시 처리하기 - toDateEdit_Validating(sender, e) /// <summary> /// TO 날짜 에디터 값 검증시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void toDateEdit_Validating(object sender, CancelEventArgs e) { if(this.toDateEdit.EditValue == null) { e.Cancel = false; } else { if(this.fromDateEdit.EditValue == null) { e.Cancel = false; } else { if(this.toDateEdit.DateTime < this.fromDateEdit.DateTime) { this.toDateEdit.ErrorText = "TO 날짜가 FROM 날짜보다 작습니다."; e.Cancel = true; } } } } #endregion } } |