How Can I Efficiently Read and Validate CSV Files in C#?

C#high -efficiency CSV file reading and data verification

When dealing with CSV files in C#, efficient analysis and verification data are essential. Although the method of dividing the value into an array is cumbersome, the better method exists.

Use TextFieldparser class

Instead of building wheels, it is better to consider using microsoft.visualBasic.fileio.TextFieldparser class. This type is designed for parsing the comma separation value (CSV) file.

Example implementation

The following is an improved CSV file analysis code example:

Automatic processing field separation

<code class="language-csharp">using (TextFieldParser parser = new TextFieldParser(@"c:\temp\test.csv"))
{
    parser.TextFieldType = FieldType.Delimited;
    parser.SetDelimiters(",");

    while (!parser.EndOfData)
    {
        // 处理行数据
        string[] fields = parser.ReadFields();

        // 验证行长度
        if (fields.Length <p><strong>优势</strong></p><p>这种方法具有以下几个优势：</p></code>

Simplify the error treatment of the damaged line

• It is not easy to make mistakes than manual segmentation.
More resources

MSDN: Read the text file separated by the commas in Visual Basic

MSDN: TextFieldparser class

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