private void btnClearFilter_Click(object sender, EventArgs e) { tbRegularExpression.Text = ""; tbName.Text = ""; ckbDocumentMap.CheckState = CheckState.Indeterminate; UICommon.ClearCheckListBox(clbCategory); clbCategory.SetItemChecked(0, true); UICommon.ClearCheckListBox(clbSourceType); clbSourceType.SetItemChecked(0, true); }