从Excel C＃中的数据行中查找最小列数

Question

In an Excel document suppose there are data as shown below:

1 a
2 bc
3 def
4 ghijk
5 lmn

Considering the very first two rows being header, data rows are from the third line. How could the minimum column count can be found from this data given that is 3, because for all rows to have common data into the all columns.

What I have is two classes as shown below

 public class RowEntity
 {
     public List<String> ColumnValues { get; set; }
 }
 public class FileEntity
 {
     public List<RowEntity> RowValues { get; set; }
 } 

Data rows can be accessed may be like below:

List <RowEntity> dataRows = fileObj.RowValues.GetRange(int index, int count);

I need to have something like:

    private int GetMinimumColumnCount(List <RowEntity> dataRows)
    {
        int minColCount;
        FileEntity fileObj = new FileEntity(); // to access the rows from the Excel file
        int headerLines; // can be changed but here set in given example

        // calculate the minColumnCount for the 

        return minColCount; 
    }

Any idea how?

Answer 1

Got it sorted eventually

The reason for using nullable int type is that the very first value can be null but having it 0 initially will never do the check right.

    private int? GetMinimumColumnCount(List <RowEntity> dataRows)
    {
        int ? minColumnCount = null;

        for (int i = 0; i < dataRows.Count; i++)
        {
            if (minColumnCount == null || minColumnCount > dataRows[i].ColumnValues.Count) 
            {
                minColumnCount = dataRows[i].ColumnValues.Count; 
            }     
        }
        return minColumnCount; 
    }