Excel读取与创建方法三: MyXLS
在后台调用excel组件,生成Excel,虽然可以对Excel文件进行完全控制,可以生成任何复杂的格式,但是有个很大的缺点,这种方式会产生很多Excel进程,很难完全清除掉,特别是在出错的时候,可能会使整个服务器崩溃。本文为大家介绍一个C#写的开源组件,并简单说下office2003和以上版本支持的XML格式。
一 操作Excel二进制格式
OpenOffice.org发布过的俩个文档Excel File Format (BIFF8)Specification和Microsoft CompoundDocument (OLE2) Format Specification对Excel的二进制格式做了一个比较详细的说明,依靠这些信息,我们可以直接操作Office二进制格式文档。
MyXls是一个C#写的开源组件,可以用来生成具有很多表格且包含格式的Excel文件。它提供了一套基于对象的API,非常容易使用。
1,生成一个空的表格
3, 再创建一个复杂点表格
protected void Page_Load(object sender, EventArgs e)
{
org.in2bits.MyXls.XlsDocument doc = new XlsDocument();
doc.FileName = "TestingAgain.xls";
//doc.Workbook.ProtectContents = true;
for (int s = 1; s <= 5; s++)
{
string sheetName = Request.Form["txtSheet" + s].Replace(",", string.Empty);
if (sheetName.Trim() == string.Empty)
continue;
int rowMin, rowCount, colMin, colCount;
try
{
rowMin = int.Parse(Request.Form["txtRowMin" + s]);
rowCount = int.Parse(Request.Form["txtRows" + s]);
colMin = int.Parse(Request.Form["txtColMin" + s]);
colCount = int.Parse(Request.Form["txtCols" + s]);
}
catch
{
continue;
}
if (rowCount > 65535) rowCount = 65535;
if (rowCount < 0) rowCount = 0;
if (rowMin < 1) rowMin = 1;
if (rowMin > 32767) rowMin = 32767;
if (colCount > 255) colCount = 255;
if (colCount < 1) colCount = 1;
if (colMin < 1) colMin = 1;
if (colMin > 100) colMin = 100;
if (sheetName.Length > 35) sheetName = sheetName.Substring(0, 35);
Worksheet sheet = doc.Workbook.Worksheets.Add(sheetName);
//sheet.Protected = true;
Cells cells = sheet.Cells;
for (int row = 0; row <= rowCount; row++)
{
if (row == 0)
{
for (int col = 1; col <= colCount; col++)
{
Cell cell = cells.Add(rowMin + row, colMin + col - 1, "Fld" + col);
cell.Font.Weight = 700;
cell.DiagonalAscending = true;
cell.DiagonalLineColor = Colors.Black;
cell.DiagonalLineStyle = 2;
//cell.Pattern = 18;
//cell.PatternColorIndex = 0;
//cell.PatternBackgroundColor = Colors.Green;
cell.Locked = true;
}
}
else
{
for (int col = 1; col <= colCount; col++)
{
Cell cell = cells.Add(rowMin + row, colMin + col - 1, /*row + col*/1.001);
cell.Locked = false;
}
}
}
}
doc.Send();
Response.Flush();
Response.End();
}
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2
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3
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2, 创建一个复杂点表格
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