为此，您必须向数据表中添加数据箭头。

// Creates a new DataRow with the same schema as the table.
DataRow dr = dt.NewRow();

// Fill the values
dr["Name"] = "Name";
dr["Marks"] = "Marks";

// Add the row to the rows collection
dt.Rows.Add ( dr );

添加一行。

DataRow row = dt.NewRow();
row["Name"] = "Ravi";
row["Marks"] = 500;
dt.Rows.Add(row);

看结构:

Table.Columns

为此，您必须向数据表中添加数据箭头。

// Creates a new DataRow with the same schema as the table.
DataRow dr = dt.NewRow();

// Fill the values
dr["Name"] = "Name";
dr["Marks"] = "Marks";

// Add the row to the rows collection
dt.Rows.Add ( dr );

您可以在单行中添加Row

    DataTable table = new DataTable();
    table.Columns.Add("Dosage", typeof(int));
    table.Columns.Add("Drug", typeof(string));
    table.Columns.Add("Patient", typeof(string));
    table.Columns.Add("Date", typeof(DateTime));

    // Here we add five DataRows.
    table.Rows.Add(25, "Indocin", "David", DateTime.Now);
    table.Rows.Add(50, "Enebrel", "Sam", DateTime.Now);
    table.Rows.Add(10, "Hydralazine", "Christoff", DateTime.Now);
    table.Rows.Add(21, "Combivent", "Janet", DateTime.Now);
    table.Rows.Add(100, "Dilantin", "Melanie", DateTime.Now);

创建数据表:

DataTable MyTable = new DataTable(); // 1
DataTable MyTableByName = new DataTable("MyTableName"); // 2

向表中添加列:

 MyTable.Columns.Add("Id", typeof(int));
 MyTable.Columns.Add("Name", typeof(string));

将行添加到数据表方法1:

DataRow row = MyTable.NewRow();
row["Id"] = 1;
row["Name"] = "John";
MyTable.Rows.Add(row);

将行添加到数据表方法2:

MyTable.Rows.Add(2, "Ivan");

将行添加到数据表方法3(以相同的结构从另一个表中添加行):

MyTable.ImportRow(MyTableByName.Rows[0]);

将行添加到数据表方法4(从另一个表中添加行):

MyTable.Rows.Add(MyTable2.Rows[0]["Id"], MyTable2.Rows[0]["Name"]);

将行添加到数据表方法5(在索引处插入行):

MyTable.Rows.InsertAt(row, 8);

DataTable dt=new DataTable();
DataColumn Name = new DataColumn("Name",typeof(string)); 

dt.Columns.Add(Name);
DataColumn Age = new DataColumn("Age", typeof(int));`

dt.Columns.Add(Age);

DataRow dr=dt.NewRow();

dr["Name"]="Kavitha Reddy"; 
dr["Age"]=24; 
dt.add.Rows(dr);
dr=dt.NewRow();

dr["Name"]="Kiran Reddy";
dr["Age"]=23; 
dt.Rows.add(dr);
Gv.DataSource=dt;
Gv.DataBind();