Aspose Cells 添加数据验证(动态下拉列表验证)
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。
控件中国网是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
- C# 基于Aspose.Cells的数据导出到Excel
using Aspose.Cells; void WriteToExcel(string filePath, List<object[]> datas, string sheetName ...
- .net mvc 使用 aspose.cells导出数据
public class AsposeCellsHelper { public Workbook workBook; public Worksheet worksheet; Style style; ...
- .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 ...
- 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 ...
- 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$_validate属性如下: class UserModel extends Model ...
- (六)SSO之CAS框架扩展 改动CAS源代码实现与ESS动态password验证对接
题记: 偶尔的偶尔我们会听到这个站点的数据泄露了,那个站点的用户数据泄露了.让用户又一次改动登录password,所以,对于用户数据安全性越发的引起我们的重视了,尤其是一些保密性要求高的站点.更须要添 ...
- 利用Aspose.Cells完成easyUI中DataGrid数据的Excel导出功能
我准备在项目中实现该功能之前,google发现大部分代码都是利用一般处理程序HttpHandler实现的服务器端数据的Excel导出,但是这样存在的问题是ashx读取的数据一般都是数据库中视图的数据, ...
- wpf binging(五) 数据的转换与验证
1.数据的验证,有时候需要验证同步的数据是否正常 需要派生一个类 ValidationRule 再把这个类指定给binging 进行验证 在这里如果验证不通过 textbox就会变成红色并且发出警告数 ...
- c# Aspose.Cells 通过Excel模板生产excel数据再打印
多的不说,我们先来利用Northwind做两个小demo.先说说Aspose.Cells的模板语法: &=DataSource.Field,&=[DataSource].[Field] ...
随机推荐
- 让Web API支持$format参数的方法
public static class WebApiConfig { public static void Register(HttpConfiguration config) { // Web AP ...
- 2016.8.27 JavaScript入门之四
1.比较运算符“>”也可以,用数字和字符串进行比较: 2.比较运算符“&&”,表示并且: 3.比较运算符“||”,表示或者: 4.顺序是重要的,循环和if判断的顺序决定了,程序的 ...
- dubbox编译
dubbox编译要在命令行 切记切记 设置JAVA_HOME 设置maven路径 命令编译dubbox 设置M2_HOME环境变量 设置idea M2_HOME dubbox 服务端 http://w ...
- hdu5057 Argestes and Sequence 分块
Time Limit: / MS (Java/Others) Memory Limit: / K (Java/Others) Total Submission(s): Accepted Submiss ...
- wpf,记录一下颜色设置的2中方法,,,
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color ...
- 我的c++学习(2)比较两个数字大小
#include "stdafx.h" #include<iostream> using namespace std; int max(int i, int j){ / ...
- jquery.color.js的使用
Jquery本身不支持变色,Jquery Color.js弥补了这缺陷并为animate动画赋予变色效果,如下红变蓝后执行回调再由蓝变红. <!DOCTYPE html> <html ...
- 看Ue4角色代码——跳跃与实现二段跳
看了一下终于发现了跳跃的关键代码 bool UCharacterMovementComponent::DoJump(bool bReplayingMoves) { if ( CharacterOwne ...
- iOS学习08之C语言内存管理
本次主要学习和理解C语言中的内存管理 1.存储区划分 按照地址从高到低的顺序:栈区,堆区,静态区,常量区,代码区 1> 栈区:局部变量的存储区域 局部变量基本都在函数.循环.分支中定义 栈区的内 ...
- POJ 1845 (约数和+二分等比数列求和)
题目链接: http://poj.org/problem?id=1845 题目大意:A^B的所有约数和,mod 9901. 解题思路: ①整数唯一分解定理: 一个整数A一定能被分成:A=(P1^K1) ...