private void RegularExpressionOnClick(object sender, EventArgs args)
 {
     this.SearchTextType = SearchTextTypes.RegularExpression;
 }
 private void TextualOnClick(object sender, EventArgs args)
 {
     this.SearchTextType = SearchTextTypes.Textual;
 }
 private void TextualOnClick(object sender, EventArgs args)
 {
     this.SearchTextType = SearchTextTypes.Textual;
 }
 private void RegularExpressionOnClick(object sender, EventArgs args)
 {
     this.SearchTextType = SearchTextTypes.RegularExpression;
 }