从数据库导出数据到word、excel、.txt

/// <summary>
/// 把数据导入到.doc文件
/// </summary>
/// <param name=”ds”></param>
public void ExportToWord(DataSet ds)
{
if(ds.Tables.Count!=0)
{
string tempFileName = null;
object filename = null;

object tableBehavior = Word.WdDefaultTableBehavior.wdWord9TableBehavior;
object autoFitBehavior = Word.WdAutoFitBehavior.wdAutoFitFixed;

object unit = Word.WdUnits.wdStory;
object extend = System.Reflection.Missing.Value;
object breakType = (int)Word.WdBreakType.wdSectionBreakNextPage;

object count = 1;
object character = Word.WdUnits.wdCharacter;

object Nothing = System.Reflection.Missing.Value;

try
{
tempFileName = GetTempFileName();

//生成.doc文件完整路径名
filename = DATAWORDPATH+tempFileName+WORDPOSTFIX;

//创建一个word文件，文件名用系统时间生成精确到毫秒
Word.Application myWord= new Word.ApplicationClass();
Word._Document myDoc = new Word.DocumentClass();
myDoc = myWord.Documents.Add(ref Nothing,ref Nothing,ref Nothing,ref Nothing);
myDoc.Activate();

//向把dataset中的表插入到word的文件中

for(int totalTable = 0;totalTable<ds.Tables.Count;totalTable++)
{
myWord.Application.Selection.TypeText(ds.Tables[totalTable].TableName+”表的数据如下”);
myWord.Application.Selection.TypeParagraph();
myWord.Application.Selection.TypeParagraph();
Word.Range para = myWord.Application.Selection.Range;
myDoc.Tables.Add(para,ds.Tables[totalTable].Rows.Count+1,ds.Tables[totalTable].Columns.Count,ref tableBehavior,ref autoFitBehavior);
for(int column = 0; column<ds.Tables[totalTable].Columns.Count;column++)
{
myDoc.Tables.Item(totalTable+1).Cell(1,column+1).Range.InsertBefore(ds.Tables[0].Columns[column].ColumnName.Trim());
}
for(int row = 0;row<ds.Tables[totalTable].Rows.Count;row++)
{
for(int column = 0;column<ds.Tables[totalTable].Columns.Count;column++)
{
myDoc.Tables.Item(totalTable+1).Cell(row+2,column+1).Range.InsertBefore(ds.Tables[totalTable].Rows[row][column].ToString().Trim());
}
}
myWord.Application.Selection.EndKey(ref unit,ref extend);
myWord.Application.Selection.TypeParagraph();
myWord.Application.Selection.TypeParagraph();
myWord.Application.Selection.InsertBreak(ref breakType);
}
myWord.Application.Selection.TypeBackspace();
myWord.Application.Selection.Delete(ref character,ref count);
myWord.Application.Selection.HomeKey(ref unit,ref extend);

//保存word文件到指定的目录下
try
{
myDoc.SaveAs(ref filename,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing);
myWord.Visible = true;
}
catch
{
System.Windows.Forms.MessageBox.Show(“系统找不到指定目录下的文件： “+DATAWORDPATH+tempFileName+WORDPOSTFIX);
return;
}
//让生成的excel文件可见
myWord.Visible = true;
}
catch(Exception ex)
{
System.Windows.Forms.MessageBox.Show(“向word文件中写入数据出错： ” + ex.Message);
}
}
else
{
System.Windows.Forms.MessageBox.Show(“No Data”);
}
}
/// <summary>
/// 把图片文件导入到.doc文件
/// </summary>
/// <param name=”bp”></param>
public void ExportToWord(Bitmap bp)
{
string tempFileName = null;
string bmpPath = null;
object filename = null;
object Nothing = null;
tempFileName = GetTempFileName();

//生成.bmp文件完整路径名
bmpPath = IMAGEPATH+tempFileName+IMAGEPOSTFIX;

//生成.doc文件完整路径名
filename = IMAGEWORDPATH+tempFileName+WORDPOSTFIX;
Nothing = System.Reflection.Missing.Value;

//创建一个word文件，文件名用系统时间生成精确到毫秒
Word.Application myWord= new Word.ApplicationClass();
Word._Document myDoc = new Word.DocumentClass();
myDoc = myWord.Documents.Add(ref Nothing,ref Nothing,ref Nothing,ref Nothing);

try
{
//把bitmap对象保存到系统所生成文件完整路径中
bp.Save(bmpPath);
}
catch
{
System.Windows.Forms.MessageBox.Show(“系统找不到指定目录下的文件： “+bmpPath);
return;
}

try
{
//往word文件中插入图片
myDoc.InlineShapes.AddPicture(bmpPath,ref Nothing,ref Nothing,ref Nothing);
}
catch
{
System.Windows.Forms.MessageBox.Show(“系统找不到指定目录下的文件： “+bmpPath);
return;
}

try
{
//保存word文件到指定的目录下
myDoc.SaveAs(ref filename,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing);
}
catch
{
System.Windows.Forms.MessageBox.Show(“系统找不到指定目录下的文件： “+IMAGEWORDPATH+tempFileName+WORDPOSTFIX);
return;
}

//让生成的word文件可见
myWord.Visible = true;
}

/// <summary>
/// 把数据文件导入到.txt文件
/// </summary>
/// <param name=”ds”></param>
public void ExportToTxt(DataSet ds)
{

if(ds.Tables.Count!=0)
{
string tempFileName = null;
tempFileName = GetTempFileName();

//创建一个.txt文件，文件名用系统时间生成精确到毫秒
FileInfo file = new FileInfo(TXTPATH+tempFileName+TXTPOSTFIX);
StreamWriter textFile = null;
try
{
textFile = file.CreateText();
}
catch
{
System.Windows.Forms.MessageBox.Show(“系统找不到指定目录下的文件： “+TXTPATH+tempFileName+TXTPOSTFIX);
return;
}

//把Dataset中的数据写入.txt文件中
for(int totaltable = 0;totaltable<ds.Tables.Count;totaltable++)
{
//统计dataset中当前表的行数
int row = ds.Tables[totaltable].Rows.Count;

//统计dataset中当前表的列数
int column = ds.Tables[totaltable].Columns.Count;

//用于统计当前表中每列记录中字符数最长的字符串的长度之和
int totalLength = 0;

//用于统计标题的长度（dataset中的表名的length+”表的数据如下”的length）
int titleLength = 0;

//统计每列记录中字符数最长的字符串的长度
int[] columnLength = new int[column];
for(int i = 0;i<column;i++)
{
columnLength[i] = ds.Tables[totaltable].Columns[i].ColumnName.ToString().Length;
}
for(int i = 0;i<row;i++)
{
for(int j = 0;j<column;j++)
{
if(ds.Tables[totaltable].Rows[i][j].ToString().Length>columnLength[j])
{
columnLength[j]=ds.Tables[totaltable].Rows[i][j].ToString().Length;
}
}
}

//统计当前表中每列记录中字符数最长的字符串的长度之和
for(int i = 0;i<column;i++)
{
totalLength = totalLength+columnLength[i]+DATADISTANCE;
}
totalLength = totalLength+2*TABDISTANCE-DATADISTANCE;

//统计标题的长度（dataset中的当前表名的length+”表的数据如下”的length）
titleLength = ds.Tables[totaltable].TableName.ToString().Length+”表的数据如下”.Length*2;

//把标题写入.txt文件中
for(int i = 0;i<(int)((totalLength-titleLength)/2);i++)
{
textFile.Write(‘ ‘);
}
textFile.Write(ds.Tables[totaltable].TableName+”表的数据如下”);
textFile.WriteLine();
for(int i = 0;i<totalLength;i++)
{
textFile.Write(‘*’);
}
textFile.WriteLine();
textFile.Write(“\\t”);

//把dataset中当前表的字段名写入.txt文件中
for(int i = 0;i<column;i++)
{
textFile.Write(ds.Tables[totaltable].Columns[i].ColumnName.ToString());
for(int k = 0;k<columnLength[i]-ds.Tables[totaltable].Columns[i].ColumnName.ToString().Length+DATADISTANCE;k++)
{
textFile.Write(‘ ‘);
}
}
textFile.WriteLine();
for(int i = 0;i<totalLength;i++)
{
textFile.Write(‘-’);
}
textFile.WriteLine();
textFile.Write(“\\t”);

//把dataset中当前表的数据写入.txt文件中
for(int i = 0;i<row;i++)
{
for(int j = 0;j<column;j++)
{
textFile.Write(ds.Tables[totaltable].Rows[i][j].ToString());
for(int k = 0;k<columnLength[j]-ds.Tables[totaltable].Rows[i][j].ToString().Length+DATADISTANCE;k++)
{
textFile.Write(‘ ‘);
}
}
textFile.WriteLine();
textFile.Write(“\\t”);
}
textFile.WriteLine();
for(int i = 0;i<totalLength;i++)
{
textFile.Write(‘-’);
}
textFile.WriteLine();
textFile.WriteLine();
textFile.WriteLine();
}

//关闭当前的StreamWriter流
textFile.Close();
System.Windows.Forms.MessageBox.Show(“数据文件已保存到”+” “+file.FullName);
}
else
{
System.Windows.Forms.MessageBox.Show(“No Data”);
}
}

public string GetTempFileName()
{
return DateTime.Now.ToString(“yyyyMMddhhmmssfff”);
}
}
}