C# code
private string GetweatherXML()
{
string body = "";
System.Net.WebRequest request = System.Net.WebRequest.Create(地址);//创建对weatherURL请求
request.Credentials = System.Net.CredentialCache.DefaultCredentials;//安全设置
System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)request.GetResponse();//得到响应
if (response.StatusDescription.ToUpper() == "OK")
{
System.IO.Stream weatherStream = response.GetResponseStream();
System.IO.StreamReader read = new System.IO.StreamReader(weatherStream);
body = read.ReadToEnd();
read.Close();
weatherStream.Close();
}
else
{
body = string.Empty;
}
response.Close();
return body;
}
2、循环读取内容存入数组
C# code
private void AssayXML()
{
XmlReader ObjXml = XmlReader.Create(new System.IO.StringReader(weatherXML));
ObjXml.MoveToContent();
while (ObjXml.Read())
{
Read//参考网上的方法
}
}
3、导出到EXCEL
C# code
private void FileCrear(string[] swtreaStr)//导出Excel
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "Execl files (*.xls)|*.xls";
saveFileDialog.FilterIndex = 0;
saveFileDialog.RestoreDirectory = true;
saveFileDialog.Title = "导出Excel文件到";
saveFileDialog.ShowDialog();
if (saveFileDialog.FileName != "")
{
try
{
File.WriteAllLines(saveFileDialog.FileName, swtreaStr, System.Text.Encoding.GetEncoding("gb2312"));
Process.Start(saveFileDialog.FileName);
}
catch
{
MessageBox.Show("导出失败！");
return;
}
finally
{
saveFileDialog.Dispose();
}
}
}
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1.建立一个excel文件。
2.把这个excel文件当成一个数据库连接他
3.用sql语句生成表
4.逐条插入数据，关闭连接。
我的就是这样做的
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C# code
long totalCount = dt.Rows.Count; //dt的行数,一会循环要用
//FileName为路径(注意名字要和表的名字一样,比如在次方法中应为excel,其实这3个参数应该全用变量代替的,呵呵,自己写吧,我不改了)
string connString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + FileName+ ";Extended roperties=Excel 8.0;";
OleDbConnection objConn = new OleDbConnection(connString);
OleDbCommand objCmd = new OleDbCommand();
objCmd.Connection = objConn;
objConn.Open();
//创建表的结构
objCmd.CommandText = "CREATE TABLE excel(ID int ,字段 varchar)";
objCmd.ExecuteNonQuery();
//插入表
for (int i = 0; i < dt.Rows.Count; i++)
{
objCmd.CommandText = "INSERT INTO excel(ID,字段) values"
+ "('" + dt.Rows[0].ToString() + "','" + dt.Rows[1].ToString() + "')";
objCmd.ExecuteNonQuery();
}
objConn.Close();
你要的答案!
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4. dataset导出到excel
4.1 写数据
object missing = System.Reflection.Missing.Value;
Microsoft.Office.Interop.Excel.ApplicationClass appc = new Microsoft.Office.Interop.Excel.ApplicationClass();//lauch excel
Microsoft.Office.Interop.Excel.Workbook wb = appc.Application.Workbooks.Add(true);//add new workbook Microsoft.Office.Interop.Excel.Worksheet ws = (Microsoft.Office.Interop.Excel.Worksheet)wb.Worksheets.get_Item(1);//get first worksheet
Microsoft.Office.Interop.Excel.Range range = ws.get_Range("A1", "C1");//get range from A1 to C1
string[] arrValue={"1","2","3"};
range.Value2 = arrValue;//set value
.
或者
public bool SaveFP2toExcel(string Path)
{
try
{
string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source="+ Path +";"+"Extended Properties=Excel 8.0;";
OleDbConnection conn = new OleDbConnection(strConn);
conn.Open();
System.Data.OleDb.OleDbCommand cmd=new OleDbCommand ();
cmd.Connection =conn;
//cmd.CommandText ="UPDATE [sheet1$] SET 姓名='2005-01-01' WHERE 工号='日期'";
//cmd.ExecuteNonQuery ();
for(int i=0;i
if(fp2.Sheets [0].Cells[i,0].Text!="")
{
cmd.CommandText ="INSERT INTO [sheet1$] (工号,姓名,部门,职务,日期,时间) VALUES('"+fp2.Sheets [0].Cells[i,0].Text+ "','"+
fp2.Sheets [0].Cells[i,1].Text+"','"+fp2.Sheets [0].Cells[i,2].Text+"','"+fp2.Sheets [0].Cells[i,3].Text+
"','"+fp2.Sheets [0].Cells[i,4].Text+"','"+fp2.Sheets [0].Cells[i,5].Text+"')";
cmd.ExecuteNonQuery ();
}
}
conn.Close ();
return true;
}
catch(System.Data.OleDb.OleDbException ex)
{
System.Diagnostics.Debug.WriteLine ("写入Excel发生错误："+ex.Message );
}
return false;
}
4.2 格式化
设置字体颜色
range.Font.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.White);//white color
设置背景色
range.Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.MidnightBlue);//set backgroud color
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C#操作excel
1. 引用的com组件：Microsoft.Office.Interop.Excel.dll，一般安装完office就有这个文件。(office 2003下载这个dll：点击下载)。
2. 新建一个C#项目，添加前面的dll到引用里面来
3. 读取excel数据到dataset
方法一
private void OpenExcel(string strFileName)
{
object missing = System.Reflection.Missing.Value;
Microsoft.Office.Interop.Excel.ApplicationClass appc = new Microsoft.Office.Interop.Excel.ApplicationClass();//lauch excel application
if (appc == null)
{
MessageBox.Show("can't access excel");
}
else
{
// Microsoft.Office.Interop.Excel.Workbook wb = appc.Application.Workbooks.Add(true);
//open excel file
Microsoft.Office.Interop.Excel.Workbook wb = appc.Application.Workbooks.Open(strFileName, missing, false, missing, missing, missing, missing, missing, missing, true, missing, missing, missing, missing, missing);
//get first worksheet
Microsoft.Office.Interop.Excel.Worksheet ws = (Microsoft.Office.Interop.Excel.Worksheet)wb.Worksheets.get_Item(1);
//get range from A1 to A3 Microsoft.Office.Interop.Excel.Range rng = ws.Cells.get_Range("A1", "A3");
object[,] arrValue = (object[,])rng.Value2;//get range's value
string strValue = "";
for (int i = 1; i <= arrValue.GetLength(0); i++)
{
strValue +="Cell"+i+":"+ arrValue[i, 1].ToString()+System.Environment.NewLine;
}
MessageBox.Show(strValue.ToString());//show value
}
appc.Quit();
appc = null;
}
方法二
public DataSet ExcelToDS(string Path)
{
string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source="+ Path +";"+"Extended Properties=Excel 8.0;";
OleDbConnection conn = new OleDbConnection(strConn);
conn.Open();
string strExcel = "";
OleDbDataAdapter myCommand = null;
DataSet ds = null;
strExcel="select * from [sheet1$]";
myCommand = new OleDbDataAdapter(strExcel, strConn);
ds = new DataSet();
myCommand.Fill(ds,"table1");
return ds;
}
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