convert generic list to datatable in Asp.Net C#,VB

convert generic list to datatable in Asp.Net C#,VB

Today, We want to share with you convert generic list to datatable in Asp.Net C#,VB.
In this post we will show you Converting Generic List into DataTable, hear for c# – How to convert a list into data table we will give you demo and example for implement.
In this post, we will learn about Converting Generic List into DataTable with an example.

Introduction

In this post, I will explain how you can convert generic list to DataTable. In the below example I am having a list of colors that I will convert to DataTable.

Example : Convert generic list to DataTable

 private void FillData()
  {
  List _ColorList = new List(); // List to be converted into DataTable
  _ColorList.Add("Red");
  _ColorList.Add("White");
  _ColorList.Add("Black");
  _ColorList.Add("Green");
  _ColorList.Add("Blue");
  DataTable _ResultDataTable = ConvertListToDataTable(_ColorList);
  }

 public static DataTable ConvertListToDataTable(IList p_ColorList)
  {
  DataTable _DataTable = new DataTable();
  if (typeof(T).IsValueType || typeof(T).Equals(typeof(string)))
  {
  DataColumn _DataColumn = new DataColumn("ColorList");
  _DataTable.Columns.Add(_DataColumn);

  foreach (T item in p_ColorList)
  {
  DataRow dr = _DataTable.NewRow();
  dr[0] = item;
  _DataTable.Rows.Add(dr);
  }
  }
  else
  {
  PropertyInfo[] _PropertyInfo = typeof(T).GetProperties();
  foreach (PropertyInfo pi in _PropertyInfo)
  {
  DataColumn dc = new DataColumn(pi.Name, pi.PropertyType);
  _DataTable.Columns.Add(dc);
  }

  for (int item = 0; item < p_ColorList.Count(); item++)
  {
  DataRow _DataRow = _DataTable.NewRow();
  for (int property = 0; property < _PropertyInfo.Length; property++)
  {
  _DataRow[property] = _PropertyInfo[property].GetValue(p_ColorList[item], null);
  }
  _DataTable.Rows.Add(_DataRow);
  }
  }
  _DataTable.AcceptChanges();
  return _DataTable;
  }

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