如何在c#中的数据表中动态添加列

Question

我想创建数据表，我想在其中动态添加列名，我的列名来自数据库，每次不同时都不是固定的列名，这取决于我使用 sql server 和 c# 的用户选择。

Answer 1

Here is an option

var dt = new DataTable();
dt.Columns.Add("Name",typeof(string));

Answer 2

Following code add column and row dynamically in the datatable:

DataTable dt = new DataTable();
var properties = typeof(model).GetProperties();

foreach (PropertyInfo p in properties)
{
    dt.Columns.Add(p.Name, p.PropertyType);
}

foreach (var data in taskData)
{
   var values = new object[properties.Length];
   for (int i = 0; i < properties.Length; i++)
   {
       values[i] = properties[i].GetValue(data, null);
   }
   dt.Rows.Add(values);
}

Answer 3

you may also try this one.

var dt = new DataTable();
DataColumn column = new DataColumn();
{
     column.Caption = "Name";
     column.ColumnName = "ColumnName";
     column.DataType = typeof(String);
     dt.Columns.Add(column);
}