我有一个我想修改的.csv文件。这是文件的格式:
Id, UTMGridEast, UTMGridNorth, LocDate, LocTime, Species
我已经完成的是创建所有这些值的arraylist,但我想要做的是创建所有值的arraylist,数据集中的每一行都是另一个数组。这是因为我需要编辑字段UTMGridEast
和UTMGridNorth
,然后将它们重新插入到arraylist中。
我的GUI只包含两个按钮,这是我目前的代码:
public partial class MainWindow : Window
{
private string _filename;
private string[] _splitValues;
public MainWindow()
{
InitializeComponent();
}
private void btnLoad_Click(object sender, RoutedEventArgs e)
{
// Configure open file dialog box
Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();
dlg.FileName = "Dataset"; // Default file name
dlg.DefaultExt = ".txt"; // Default file extension
dlg.Filter = "Commar Seperated Values (.csv)|*.csv" ; // Filter files by extension
// Show open file dialog box
Nullable<bool> result = dlg.ShowDialog();
// Process open file dialog box results
if (result == true)
{
// Open document
_filename = dlg.FileName;
txtFilePath.Text = _filename;
}
}
private void btnConvert_Click(object sender, RoutedEventArgs e)
{
ConvertToLatLong();
}
private void ConvertToLatLong()
{
string textFile = System.IO.File.ReadAllText(_filename);
foreach (var value in textFile)
{
_splitValues = textFile.Split(',');
Console.WriteLine("Split values: " + _splitValues[value]);
}
}
}
答案 0 :(得分:1)
首先,我会根据NewLine分割文本,以获取单独的行,然后根据字段分隔符。
类似
List<string> lines = new List<string>(textFile.Split(new[] { Environment.NewLine }, StringSplitOptions.None));
for (int iLine = 0; iLine < lines.Count; iLine++)
{
List<string> values = new List<string>(lines[iLine].Split(new[] {","}, StringSplitOptions.None));
for (int iValue = 0; iValue < values.Count; iValue++)
Console.WriteLine(String.Format("Line {0} Value {1} : {2}", iLine, iValue, values[iValue]));
}
但正如我一直所说,滚动你自己的CSV解析器非常困难。
特别是在基本规则和示例
部分答案 1 :(得分:1)
我不确定_splitValues
是什么类型,但假设List<String[]>
可行:
private void ConvertToLatLong()
{
var lines = from line in System.IO.File.ReadLines("foo")
let splitLine = line.Split(',')
select splitLine.Select(x => x.Trim()).ToArray();
_splitValues = lines.ToList();
}