【发布时间】:2021-03-12 01:40:03
【问题描述】:
在 C# 中的 Excel 中,如何创建一个可以对项目进行排序的组合,当单击其中一个项目时,该项目单独出现?
【问题讨论】:
标签: c# excel validation range
在 C# 中的 Excel 中,如何创建一个可以对项目进行排序的组合,当单击其中一个项目时,该项目单独出现?
【问题讨论】:
标签: c# excel validation range
如果您想为此目的使用验证,我编写了以下方法来添加验证和用户单击单元格时出现的小信息框:
/// <summary>
/// Adds a small Infobox and a Validation with restriction (only these values will be selectable) to the specified cell.
/// </summary>
/// <param name="worksheet">The excel-sheet</param>
/// <param name="rowNr">1-based row index of the cell that will contain the validation</param>
/// <param name="columnNr">1-based column index of the cell that will contain the validation</param>
/// <param name="title">Title of the Infobox</param>
/// <param name="message">Message in the Infobox</param>
/// <param name="validationValues">List of available values for selection of the cell. No other value, than this list is allowed to be used.</param>
/// <exception cref="Exception">Thrown, if an error occurs, or the worksheet was null.</exception>
public static void AddDataValidation(Worksheet worksheet, int rowNr, int columnNr, string title, string message, List<string> validationValues)
{
//If the message-string is too long (more than 255 characters, prune it)
if (message.Length > 255)
message = message.Substring(0, 254);
try
{
//The validation requires a ';'-separated list of values, that goes as the restrictions-parameter.
//Fold the list, so you can add it as restriction. (Result is "Value1;Value2;Value3")
//If you use another separation-character (e.g in US) change the ; appropriately (e.g. to the ,)
string values = string.Join(";", validationValues);
//Select the specified cell
Range cell = worksheet.Cells[rowNr, columnNr];
//Delete any previous validation
cell.Validation.Delete();
//Add the validation, that only allowes selection of provided values.
cell.Validation.Add(XlDVType.xlValidateList, XlDVAlertStyle.xlValidAlertStop, XlFormatConditionOperator.xlBetween, values, Type.Missing);
cell.Validation.IgnoreBlank = true;
//Optional put a message there
cell.Validation.InputTitle = title;
cell.Validation.InputMessage = message;
}
catch (Exception exception)
{
//This part should not be reached, but is used for stability-reasons
throw new Exception(String.Format("Error when adding a Validation with restriction to the specified cell Row:{0}, Column:{1}, Message: {2}", rowNr, columnNr, message), exception);
}
}
如果您不需要信息框,只需省略出现变量标题或消息的部分即可。
【讨论】:
;,而在美国/英国使用,。我已经更新了我的帖子以更加清晰。
我自己找到的,尝试随机的东西:
范围 m_range = Sheet.get_Range("A1", “F9”); m_range.AutoFilter(1, Missing.Value,XlAutoFilterOperator.xlAnd, Missing.Value, true);
我也不知道为什么,但是结果很完美,最上面一行作为表头,其他所有单元格都加进去了……酷
【讨论】:
我无法真正帮助您解决 Excel 问题,但 this.Controls 很可能来自 Windows 窗体应用程序。请参阅 MSDN 上的 this 文章。 您可以通过创建一个空的 Windows 窗体应用程序然后输入 Form1.cs this.Controls 来尝试它。
【讨论】: