参考 :http://www.componentcn.com/kongjianjishu/kongjianjishu/2015-06-04/2781.html

Aspose Cells是一款操作和处理以及转换Excel文件的类库,支持.NET和JAVA版,几乎所有Excel能实现的功能,Aspose Cells都可以实现,Microsoft Excel支持多种不同类型的数据验证,每一种类型用于控制数据输入或者单元格范围,比如经常用到的:整数验证、小数位数验证、值范围验证、时间验证、文本字符长度验证等。

控件中国网Aspose Cells在中国的官方授权销售商和技术支持提供商,提供Aspose Cells控件下载、Aspose Cells授权、Aspose Cells正版产品销售等服务

在Aspose Cell要实现单元格的数据验证也是相对简单的,开发人员能够为用户提供一个选择列表、限制数据输入或者是指定数据的类型和大小,在Aspose Cell里,每个工作表类都有一个Validations对象,该对象包含了一系列验证对象,包含了下面的一些属性:

  • Type:用于表示验证类型,用于指定ValidationType枚举里的类型预定值
  • Operator:用于表示使用何种运算符或者运算规则,用于指定OperatorType枚举里的预定义值
  • Formula1:首选的验证公式和表达式
  • Formula2:次选的验证公式和表达式

数据验证类型,控件提供的ValidationType枚举有下列值:

  • AnyValue 指示一个值可以是任何类型
  • WholeNumber 指示验证类型只能是整数数字
  • Decimal 指示验证的类型只能是小数
  • List 指示验证的类型是下拉列表
  • Date 指示验证的类型是日期
  • Time 指示验证类型是时间
  • TextLength 指示验证的类型是文本长度
  • Custom 自定义验证类型

下面的事例介绍了,如何验证一定范围内的单元格输入只能是整数,具体代码如下:

ValidationCollection validations = workbook.Worksheets[0].Validations;

//Creating a Validation object
Validation validation = validations[validations.Add()];

//Setting the validation type to whole number
validation.Type = ValidationType.WholeNumber;

//Setting the operator for validation to Between
validation.Operator = OperatorType.Between;

//Setting the minimum value for the validation
validation.Formula1 = "10";

//Setting the maximum value for the validation
validation.Formula2 = "1000";

//Applying the validation to a range of cells from A1 to B2 using the
//CellArea structure
CellArea area;
area.StartRow = 0;
area.EndRow = 1;
area.StartColumn = 0;
area.EndColumn = 1;

//Adding the cell area to Validation
validation.AreaList.Add(area);

下面的事例介绍了如何使用小数数据验证:
// Create a workbook object.
Workbook workbook = new Workbook();

// Create a worksheet and get the first worksheet.
Worksheet ExcelWorkSheet = workbook.Worksheets[0];

// Obtain the existing Validations collection.
ValidationCollection validations = ExcelWorkSheet.Validations;

// Create a validation object adding to the collection list.
Validation validation = validations[validations.Add()];

// Set the validation type.
validation.Type = ValidationType.Decimal;

// Specify the operator.
validation.Operator = OperatorType.Between;

// Set the lower and upper limits.
validation.Formula1 = Decimal.MinValue.ToString();
validation.Formula2 = Decimal.MaxValue.ToString();

// Set the error message.
validation.ErrorMessage = "Please enter a valid integer or decimal number";

// Specify the validation area of cells.
CellArea area;
area.StartRow = 0;
area.EndRow = 9;
area.StartColumn = 0;
area.EndColumn = 0;

// Add the area.
validation.AreaList.Add(area);

// Set the number formats to 2 decimal places for the validation area.
for (int i = 0; i < 10; i++)
{
    ExcelWorkSheet.Cells[i, 0].GetStyle().Custom = "0.00";
}

// Save the workbook.
workbook.Save("d:\\test\\decimalvalidation.xls");

下面的事例介绍了List数据验证//注:用的较多
// Create a workbook object.
Workbook workbook = new Workbook();

// Get the first worksheet.
Worksheet worksheet1 = workbook.Worksheets[0];

// Add a new worksheet and access it.
int i = workbook.Worksheets.Add();
Worksheet worksheet2 = workbook.Worksheets[i];

// Create a range in the second worksheet.
Range range = worksheet2.Cells.CreateRange("E1", "E4");

// Name the range.
range.Name = "MyRange";

// Fill different cells with data in the range.
range[0, 0].PutValue("Blue");
range[1, 0].PutValue("Red");
range[2, 0].PutValue("Green");
range[3, 0].PutValue("Yellow");

// Get the validations collection.
ValidationCollection validations = worksheet1.Validations;

// Create a new validation to the validations list.
Validation validation = validations[validations.Add()];

// Set the validation type.
validation.Type = Aspose.Cells.ValidationType.List;

// Set the operator.
validation.Operator = OperatorType.None;

// Set the in cell drop down.
validation.InCellDropDown = true;

// Set the formula1.
validation.Formula1 = "此处是下拉列表中的数据,一般是以逗号分割的字符串";

// Enable it to show error.
validation.ShowError = true;

// Set the alert type severity level.
validation.AlertStyle = ValidationAlertType.Stop;

// Set the error title.
validation.ErrorTitle = "Error";

// Set the error message.
validation.ErrorMessage = "Please select a color from the list";

// Specify the validation area.
CellArea area;
area.StartRow = 0;
area.EndRow = 4;
area.StartColumn = 0;
area.EndColumn = 0;

// Add the validation area.
validation.AreaList.Add(area);

// Save the Excel file.
workbook.Save("d:\\test\\validationtypelist.xls");

下面的事例介绍了,如何使用日期验证:
// Create a workbook.
 Workbook workbook = new Workbook();

// Obtain the cells of the first worksheet.
 Cells cells = workbook.Worksheets[0].Cells;

// Put a string value into the A1 cell.
 cells["A1"].PutValue("Please enter Date b/w 1/1/1970 and 12/31/1999");

// Wrap the text.
 cells["A1"].GetStyle().IsTextWrapped = true;

// Set row height and column width for the cells.
 cells.SetRowHeight(0, 31);
 cells.SetColumnWidth(0, 35);

// Get the validations collection.
 ValidationCollection validations = workbook.Worksheets[0].Validations;

// Add a new validation.
 Validation validation = validations[validations.Add()];

// Set the data validation type.
 validation.Type = ValidationType.Date;

// Set the operator for the data validation
 validation.Operator = OperatorType.Between;

// Set the value or expression associated with the data validation.
 validation.Formula1 = "1/1/1970";

// The value or expression associated with the second part of the data validation.
 validation.Formula2 = "12/31/1999";

// Enable the error.
 validation.ShowError = true;

// Set the validation alert style.
 validation.AlertStyle = ValidationAlertType.Stop;

// Set the title of the data-validation error dialog box
 validation.ErrorTitle = "Date Error";

// Set the data validation error message.
 validation.ErrorMessage = "Enter a Valid Date";

// Set and enable the data validation input message.
 validation.InputMessage = "Date Validation Type";
 validation.IgnoreBlank = true;
 validation.ShowInput = true;

// Set a collection of CellArea which contains the data validation settings.
 CellArea cellArea;
 cellArea.StartRow = 0;
 cellArea.EndRow = 0;
 cellArea.StartColumn = 1;
 cellArea.EndColumn = 1;

// Add the validation area.
 validation.AreaList.Add(cellArea);

// Save the Excel file.
 workbook.Save("d:\\test\\datevalidation.xls");

下面的事例介绍了,如何使用文本长度验证:
// Create a new workbook.
Workbook workbook = new Workbook();

// Obtain the cells of the first worksheet.
Cells cells = workbook.Worksheets[0].Cells;

//Put a string value into A1 cell.
cells["A1"].PutValue("Please enter a string not more than 5 chars");

// Wrap the text.
cells["A1"].GetStyle().IsTextWrapped = true;

// Set row height and column width for the cell.
cells.SetRowHeight(0, 31);
cells.SetColumnWidth(0, 35);

// Get the validations collection.
ValidationCollection validations = workbook.Worksheets[0].Validations;

// Add a new validation.
Validation validation = validations[validations.Add()];

// Set the data validation type.
validation.Type = ValidationType.TextLength;

// Set the operator for the data validation.
validation.Operator = OperatorType.LessOrEqual;

// Set the value or expression associated with the data validation.
validation.Formula1 = "5";

// Enable the error.
validation.ShowError = true;

// Set the validation alert style.
validation.AlertStyle = ValidationAlertType.Warning;

// Set the title of the data-validation error dialog box.
validation.ErrorTitle = "Text Length Error";

// Set the data validation error message.
validation.ErrorMessage = " Enter a Valid String";

// Set and enable the data validation input message.
validation.InputMessage = "TextLength Validation Type";
validation.IgnoreBlank = true;
validation.ShowInput = true;

// Set a collection of CellArea which contains the data validation settings.
CellArea cellArea;
cellArea.StartRow = 0;
cellArea.EndRow = 0;
cellArea.StartColumn = 1;
cellArea.EndColumn = 1;

// Add the validation area.
validation.AreaList.Add(cellArea);

// Save the Excel file.
workbook.Save("d:\\test\\textlengthvalidation.xls");

Aspose Cells 添加数据验证(动态下拉列表验证)的更多相关文章

  1. C# 基于Aspose.Cells的数据导出到Excel

    using Aspose.Cells;  void WriteToExcel(string filePath, List<object[]> datas, string sheetName ...

  2. .net mvc 使用 aspose.cells导出数据

    public class AsposeCellsHelper { public Workbook workBook; public Worksheet worksheet; Style style; ...

  3. .Net高级进阶,教你如何构建企业模型数据拦截层,动态控制字段验证

    现在,你有一个MVC架构的web项目,你要完成一个注册功能. 前台传了3个值到你的控制器,分别是账号.密码.邮箱. 如图:现在你要在控制器里面判断,账号名称.密码.邮箱不能为空,并且名称和密码不超过1 ...

  4. 基于 Aspose.Cells与XML导入excel 数据----操作类封装

    前言 导入excel数据, 在每个项目中基本上都会遇到,第三方插件或者基于微软office,用的最多的就是npoi,aspose.cells和c#基于office这三种方式,其中各有各的优缺点,在这也 ...

  5. thinkphp自动验证中的静态验证和动态验证和批量验证

    1.静态定义 在模型类里面预先定义好该模型的自动验证规则,我们称为静态定义. 举例说明,我们在模型类里面定义了$_validate属性如下: class UserModel extends Model ...

  6. (六)SSO之CAS框架扩展 改动CAS源代码实现与ESS动态password验证对接

    题记: 偶尔的偶尔我们会听到这个站点的数据泄露了,那个站点的用户数据泄露了.让用户又一次改动登录password,所以,对于用户数据安全性越发的引起我们的重视了,尤其是一些保密性要求高的站点.更须要添 ...

  7. 利用Aspose.Cells完成easyUI中DataGrid数据的Excel导出功能

    我准备在项目中实现该功能之前,google发现大部分代码都是利用一般处理程序HttpHandler实现的服务器端数据的Excel导出,但是这样存在的问题是ashx读取的数据一般都是数据库中视图的数据, ...

  8. wpf binging(五) 数据的转换与验证

    1.数据的验证,有时候需要验证同步的数据是否正常 需要派生一个类 ValidationRule 再把这个类指定给binging 进行验证 在这里如果验证不通过 textbox就会变成红色并且发出警告数 ...

  9. c# Aspose.Cells 通过Excel模板生产excel数据再打印

    多的不说,我们先来利用Northwind做两个小demo.先说说Aspose.Cells的模板语法: &=DataSource.Field,&=[DataSource].[Field] ...

随机推荐

  1. loadrunner参数化excel数据

    LR参数化数据源Oracle,MSSQL,Excel参数化的方法: 重点介绍excel数据参数化的方法: 1.首先创建excel表格: 注意要写列明   2.创建excel表连接:   参数化完成后, ...

  2. js-Ajax与Comet

    Ajax与Comet: 1.Ajax技术的核心是XHR(XMLHTTPRequest对象) 创建xhr对象: function createXHR(){ if(typeof XMLHttpReques ...

  3. NumPy 学习(2): 数组的操作

    1. 简单一维数组的操作 一维数组的操作类似于python自身的list类型. In [14]: arr = np.arange(10) In [15]: arr Out[15]: array([0, ...

  4. XML Basic

    XML声明: <?xml version="1.0" encoding="UTF-8"?> XML中属性的value值要被引号(单引号or双引号)引 ...

  5. ural 2065. Different Sums

    2065. Different Sums Time limit: 1.0 secondMemory limit: 64 MB Alex is a very serious mathematician ...

  6. 【SQL】区分新来顾客和再访顾客

    -- 赋值 客户来访记录 SELECT m.* FROM (SELECT x.*, CASE WHEN x.ts > (SELECT MIN(a.ts) FROM USER.ps_afterre ...

  7. 【oracle】解锁oracle用户,unlock

    解除oracle用户的锁定状态,例如oracle数据库建立测试实例时默认建立的scott用户,一开始是处于locked状态的,现在我们需要将其解锁,步骤如下: (1)在cmd中登录sqlplus,例如 ...

  8. iOSDay27之界面通信

    1. 属性传值(前面的界面给后面传值) 第一步: 在 SecondViewController.h 文件里定义一个存放传过来值的变量 contents #import <UIKit/UIKit. ...

  9. 争夺 & KM思想

    题意: 给一张二分图,每个点与两个特定点又一条边相连,边权非负,让你给这个二分图每个点一个顶标,让每一条边两端顶标和大于等于这条边.求出最小顶标和. 这当然是翻译过的题目... 原题: 小Y和小P无聊 ...

  10. Coder-Strike 2014 - Finals (online edition, Div. 2) A. Pasha and Hamsters

    水题 #include <iostream> #include <vector> #include <algorithm> using namespace std; ...