/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
using System;
using System.Text;
using System.IO;
using NPOI.HSSF.UserModel;
using NPOI.HPSF;
using NPOI.POIFS.FileSystem;
/* ================================================================
* Author: Tony Qu
* Author's email: tonyqus (at) gmail.com
* NPOI HomePage: http://www.codeplex.com/npoi
* Contributors:
*
* ==============================================================*/
namespace CreateDropDownListCellInXls{
class Program
{
static void Main(string[] args)
{
InitializeWorkbook();
HSSFSheet sheet1 = hssfworkbook.CreateSheet("Sheet1");
HSSFSheet sheet2 = hssfworkbook.CreateSheet("Sheet2");
//create three items in Sheet2
HSSFRow row0 = sheet2.CreateRow(0);
HSSFCell cell0 = row0.CreateCell(4);
cell0.SetCellValue("Product1");
row0 = sheet2.CreateRow(1);
cell0 = row0.CreateCell(4);
cell0.SetCellValue("Product2");
row0 = sheet2.CreateRow(2);
cell0 = row0.CreateCell(4);
cell0.SetCellValue("Product3");
NPOI.HSSF.Util.CellRangeAddressList rangeList = new NPOI.HSSF.Util.CellRangeAddressList();
//add the data validation to the first column (1-100 rows)
rangeList.AddCellRangeAddress(new NPOI.HSSF.Util.CellRangeAddress(1, 100, 0, 0));
DVConstraint dvconstraint = DVConstraint.CreateFormulaListConstraint("Sheet2!$E1:$E3");
NPOI.HSSF.Util.HSSFDataValidation dataValidation = new
NPOI.HSSF.Util.HSSFDataValidation(rangeList, dvconstraint);
//add the data validation to sheet1
sheet1.AddValidationData(dataValidation);
WriteToFile();
}
static HSSFWorkbook hssfworkbook;
static void WriteToFile()
{
//Write the stream data of workbook to the root directory
FileStream file = new FileStream(@"test.xls", FileMode.Create);
hssfworkbook.Write(file);
file.Close();
}
static void InitializeWorkbook()
{
hssfworkbook = new HSSFWorkbook();
//create a entry of DocumentSummaryInformation
DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
dsi.Company = "NPOI Team";
hssfworkbook.DocumentSummaryInformation = dsi;
//create a entry of SummaryInformation
SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
si.Subject = "NPOI SDK Example";
hssfworkbook.SummaryInformation = si;
}
}
}
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