8 changed files with 343 additions and 16 deletions
@ -0,0 +1,216 @@ |
|||||
|
using Microsoft.Win32; |
||||
|
using System; |
||||
|
using System.Collections.Generic; |
||||
|
using System.Data; |
||||
|
using System.IO; |
||||
|
using System.Linq; |
||||
|
using System.Text; |
||||
|
using System.Threading.Tasks; |
||||
|
using System.Windows.Markup; |
||||
|
|
||||
|
namespace DyeingComputer.UserClass |
||||
|
{ |
||||
|
internal class CSV |
||||
|
{ |
||||
|
/// <summary>
|
||||
|
/// 将DataTable中数据写入到CSV文件中
|
||||
|
/// </summary>
|
||||
|
/// <param name="dt">提供保存数据的DataTable</param>
|
||||
|
/// <param name="strFormat">CSV的文件路径</param>
|
||||
|
public static void SaveCSV(DataTable dt,string strFormat) |
||||
|
{ |
||||
|
FileInfo fi = new FileInfo(strFormat); |
||||
|
if (!fi.Directory.Exists) |
||||
|
{ |
||||
|
fi.Directory.Create(); |
||||
|
} |
||||
|
FileStream fs = new FileStream(strFormat, System.IO.FileMode.Create, System.IO.FileAccess.Write); |
||||
|
//StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.Default);
|
||||
|
StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.UTF8); |
||||
|
string data = ""; |
||||
|
//写出列名称
|
||||
|
for (int i = 0; i < dt.Columns.Count; i++) |
||||
|
{ |
||||
|
data += dt.Columns[i].ColumnName.ToString(); |
||||
|
if (i < dt.Columns.Count - 1) |
||||
|
{ |
||||
|
data += ","; |
||||
|
} |
||||
|
} |
||||
|
sw.WriteLine(data); |
||||
|
//写出各行数据
|
||||
|
for (int i = 0; i < dt.Rows.Count; i++) |
||||
|
{ |
||||
|
data = ""; |
||||
|
for (int j = 0; j < dt.Columns.Count; j++) |
||||
|
{ |
||||
|
string str = dt.Rows[i][j].ToString(); |
||||
|
str = str.Replace("\"", "\"\"");//替换英文冒号 英文冒号需要换成两个冒号
|
||||
|
if (str.Contains(',') || str.Contains('"') |
||||
|
|| str.Contains('\r') || str.Contains('\n')) //含逗号 冒号 换行符的需要放到引号中
|
||||
|
{ |
||||
|
str = string.Format("\"{0}\"", str); |
||||
|
} |
||||
|
|
||||
|
data += str; |
||||
|
if (j < dt.Columns.Count - 1) |
||||
|
{ |
||||
|
data += ","; |
||||
|
} |
||||
|
} |
||||
|
sw.WriteLine(data); |
||||
|
} |
||||
|
sw.Close(); fs.Close(); |
||||
|
} |
||||
|
|
||||
|
#region CSV文件读取
|
||||
|
/// <summary>
|
||||
|
/// 将CSV文件的数据读取到DataTable中
|
||||
|
/// </summary>
|
||||
|
/// <param name="fileName">CSV文件路径</param>
|
||||
|
/// <returns>返回读取了CSV数据的DataTable</returns>
|
||||
|
public static DataTable OpenCSV(string filePath)//从csv读取数据返回table
|
||||
|
{ |
||||
|
System.Text.Encoding encoding = GetType(filePath); //Encoding.ASCII;//
|
||||
|
DataTable dt = new DataTable(); |
||||
|
System.IO.FileStream fs = new System.IO.FileStream(filePath, System.IO.FileMode.Open, System.IO.FileAccess.Read); |
||||
|
System.IO.StreamReader sr = new System.IO.StreamReader(fs, encoding); |
||||
|
|
||||
|
//记录每次读取的一行记录
|
||||
|
string strLine = ""; |
||||
|
//记录每行记录中的各字段内容
|
||||
|
string[] aryLine = null; |
||||
|
string[] tableHead = null; |
||||
|
//标示列数
|
||||
|
int columnCount = 0; |
||||
|
//标示是否是读取的第一行
|
||||
|
bool IsFirst = true; |
||||
|
//逐行读取CSV中的数据
|
||||
|
int readCol = 0; |
||||
|
while ((strLine = sr.ReadLine()) != null) |
||||
|
{ |
||||
|
if (readCol > 0) |
||||
|
{ |
||||
|
if (IsFirst == true) |
||||
|
{ |
||||
|
tableHead = strLine.Split(','); |
||||
|
IsFirst = false; |
||||
|
columnCount = tableHead.Length; |
||||
|
//创建列
|
||||
|
for (int i = 0; i < columnCount; i++) |
||||
|
{ |
||||
|
DataColumn dc = new DataColumn(tableHead[i]); |
||||
|
dt.Columns.Add(dc); |
||||
|
} |
||||
|
} |
||||
|
else |
||||
|
{ |
||||
|
aryLine = strLine.Split(','); |
||||
|
DataRow dr = dt.NewRow(); |
||||
|
for (int j = 0; j < columnCount; j++) |
||||
|
{ |
||||
|
dr[j] = aryLine[j]; |
||||
|
} |
||||
|
dt.Rows.Add(dr); |
||||
|
} |
||||
|
} |
||||
|
readCol++; |
||||
|
} |
||||
|
if (aryLine != null && aryLine.Length > 0) |
||||
|
{ |
||||
|
dt.DefaultView.Sort = tableHead[0] + " " + "asc"; |
||||
|
} |
||||
|
|
||||
|
sr.Close(); |
||||
|
fs.Close(); |
||||
|
return dt; |
||||
|
} |
||||
|
/// 给定文件的路径,读取文件的二进制数据,判断文件的编码类型
|
||||
|
/// <param name="FILE_NAME">文件路径</param>
|
||||
|
/// <returns>文件的编码类型</returns>
|
||||
|
|
||||
|
public static System.Text.Encoding GetType(string FILE_NAME) |
||||
|
{ |
||||
|
System.IO.FileStream fs = new System.IO.FileStream(FILE_NAME, System.IO.FileMode.Open, |
||||
|
System.IO.FileAccess.Read); |
||||
|
System.Text.Encoding r = GetType(fs); |
||||
|
fs.Close(); |
||||
|
return r; |
||||
|
} |
||||
|
|
||||
|
/// 通过给定的文件流,判断文件的编码类型
|
||||
|
/// <param name="fs">文件流</param>
|
||||
|
/// <returns>文件的编码类型</returns>
|
||||
|
public static System.Text.Encoding GetType(System.IO.FileStream fs) |
||||
|
{ |
||||
|
byte[] Unicode = new byte[] { 0xFF, 0xFE, 0x41 }; |
||||
|
byte[] UnicodeBIG = new byte[] { 0xFE, 0xFF, 0x00 }; |
||||
|
byte[] UTF8 = new byte[] { 0xEF, 0xBB, 0xBF }; //带BOM
|
||||
|
System.Text.Encoding reVal = System.Text.Encoding.Default; |
||||
|
|
||||
|
System.IO.BinaryReader r = new System.IO.BinaryReader(fs, System.Text.Encoding.Default); |
||||
|
int i; |
||||
|
int.TryParse(fs.Length.ToString(), out i); |
||||
|
byte[] ss = r.ReadBytes(i); |
||||
|
if (IsUTF8Bytes(ss) || (ss[0] == 0xEF && ss[1] == 0xBB && ss[2] == 0xBF)) |
||||
|
{ |
||||
|
reVal = System.Text.Encoding.UTF8; |
||||
|
} |
||||
|
else if (ss[0] == 0xFE && ss[1] == 0xFF && ss[2] == 0x00) |
||||
|
{ |
||||
|
reVal = System.Text.Encoding.BigEndianUnicode; |
||||
|
} |
||||
|
else if (ss[0] == 0xFF && ss[1] == 0xFE && ss[2] == 0x41) |
||||
|
{ |
||||
|
reVal = System.Text.Encoding.Unicode; |
||||
|
} |
||||
|
r.Close(); |
||||
|
return reVal; |
||||
|
} |
||||
|
|
||||
|
/// 判断是否是不带 BOM 的 UTF8 格式
|
||||
|
/// <param name="data"></param>
|
||||
|
/// <returns></returns>
|
||||
|
private static bool IsUTF8Bytes(byte[] data) |
||||
|
{ |
||||
|
int charByteCounter = 1; //计算当前正分析的字符应还有的字节数
|
||||
|
byte curByte; //当前分析的字节.
|
||||
|
for (int i = 0; i < data.Length; i++) |
||||
|
{ |
||||
|
curByte = data[i]; |
||||
|
if (charByteCounter == 1) |
||||
|
{ |
||||
|
if (curByte >= 0x80) |
||||
|
{ |
||||
|
//判断当前
|
||||
|
while (((curByte <<= 1) & 0x80) != 0) |
||||
|
{ |
||||
|
charByteCounter++; |
||||
|
} |
||||
|
//标记位首位若为非0 则至少以2个1开始 如:110XXXXX...........1111110X
|
||||
|
if (charByteCounter == 1 || charByteCounter > 6) |
||||
|
{ |
||||
|
return false; |
||||
|
} |
||||
|
} |
||||
|
} |
||||
|
else |
||||
|
{ |
||||
|
//若是UTF-8 此时第一位必须为1
|
||||
|
if ((curByte & 0xC0) != 0x80) |
||||
|
{ |
||||
|
return false; |
||||
|
} |
||||
|
charByteCounter--; |
||||
|
} |
||||
|
} |
||||
|
if (charByteCounter > 1) |
||||
|
{ |
||||
|
throw new Exception("非预期的byte格式"); |
||||
|
} |
||||
|
return true; |
||||
|
} |
||||
|
#endregion
|
||||
|
|
||||
|
} |
||||
|
} |
@ -0,0 +1,31 @@ |
|||||
|
using LiveChartsCore.SkiaSharpView; |
||||
|
using LiveChartsCore; |
||||
|
using System; |
||||
|
using System.Collections.Generic; |
||||
|
using System.Data; |
||||
|
using System.Linq; |
||||
|
using System.Text; |
||||
|
using System.Threading.Tasks; |
||||
|
using static DyeingComputer.UserClass.SqliteHelper; |
||||
|
using CommunityToolkit.Mvvm.ComponentModel; |
||||
|
|
||||
|
namespace DyeingComputer.ViewModel |
||||
|
{ |
||||
|
public class CurveDiagramViewModel : ObservableObject |
||||
|
{ |
||||
|
|
||||
|
public ISeries[] Series { get; set; } = new ISeries[] |
||||
|
{ |
||||
|
new LineSeries<double> |
||||
|
{ |
||||
|
Values = new double[] { 2, 1, 3, 5, 3, 4, 6 }, |
||||
|
Fill = null |
||||
|
} |
||||
|
}; |
||||
|
|
||||
|
public CurveDiagramViewModel() |
||||
|
{ |
||||
|
|
||||
|
} |
||||
|
} |
||||
|
} |
Loading…
Reference in new issue