WebJan 22, 2024 · 首先,使用 File.OpenText 方法打开 CSV 文件并返回一个 StreamReader 对象,然后可以使用 StreamReader.ReadLine 方法一行一行地读取文件中的内容。. 可以使用 String.Split ()方法将每一行的字符串分割成数组形式放入其他的数据结构中. 示例代码如下:. Dim filePath As String = "path ... WebOct 7, 2024 · string line = parser.ReadLine (); while (!parser.EndOfData) { var currentRow = parser.ReadFields (); var foodType = currentRow [0]; if (headerRow) { foreach (var field in currentRow) { dt.Columns.Add (field, typeof(object)); } headerRow = false; } else { dt.Rows.Add (currentRow); } } } Thursday, August 20, 2015 4:17 AM Answers 0 Sign in to …
TextFieldParser - retrieve line read by ReadFields - Stack …
WebThe ReadLine method performs no parsing; an end-of-line character within a delimited field is interpreted as the actual end of the line. Nothing is returned if the end of the file is reached. Applies to See also OpenTextFieldParser (String) ReadFields () ReadToEnd () Objects (Visual Basic) Parsing Text Files with the TextFieldParser Object WebC# TextFieldParser ReadFields () Reads all fields on the current line, returns them as an array of strings, and advances the cursor to the next line containing data. From Type: Microsoft.VisualBasic.FileIO.TextFieldParser. ReadFields () is a method. how many sap appeals are accepted
C# TextFieldParser Examples
WebTextFieldParser reads in CSV files. With it, we specify a delimiter string, and then can read in the fields of every line in a loop. We can use the TextFieldParser instead of string.Split. We demonstrate the TextFieldParser. Tip: To access TextFieldParser, go to Add Reference, and select Microsoft.VisualBasic. Example. Webusing (var reader = new StreamReader (filename)) { var line = reader.ReadLine (); // new Parser and Stream for every line, bleah! using (var parser = new TextFieldParser ( new MemoryStream (Encoding.ASCII.GetBytes (line)))) { parser.HasFieldsEnclosedInQuotes = true; parser.TextFieldType = FieldType.Delimited; parser.SetDelimiters (","); var … WebAug 30, 2024 · It's more common to call ReadFields. ReadLine will return the entire line as one String, which is why you need to declare the receiving variable as type String. If that's all you're going to do though, why use a TextFieldParser at all in preference to a StreamReader or even File.ReadLines? how many sap schools are there in singapore