使用在运行时生成的列创建GridView

Question

我有一个DataTable,其中列是在运行时以编程方式生成的.然后我将此DataTable绑定到GridView.我想知道的是我如何创建GridView以适应这一点,如果不可能,我如何将DataTable输出到格式良好的HTML中.

Answer 1

为此,GridView有一个AutogenerateColums属性.您还可以动态生成列,例如:

VB.NET

Dim tbl As New DataTable
tbl.Columns.Add("ID", GetType(Int32))
tbl.Columns.Add("Name", GetType(String))
tbl.Columns.Add("Birthday", GetType(Date))
Dim pers As DataRow = tbl.NewRow
pers("ID") = 1
pers("Name") = "Tim"
pers("Birthday") = New Date(1973, 6, 9)

用于AutoGenerateColumns让网格生成列本身:

Me.GridView1.AutoGenerateColumns = True
Me.GridView1.DataSource = tbl
Me.GridView1.DataBind()

或动态生成列

For Each col As DataColumn In tbl.Columns
    Dim field As New BoundField
    field.DataField = col.ColumnName
    field.HeaderText = col.ColumnName
    GridView1.Columns.Add(field)
Next

C#

foreach (DataColumn col in dt.Columns)
{    
    BoundField field = new BoundField();
    field.DataField = col.ColumnName;
    field.HeaderText = col.ColumnName;
    GridView1.Columns.Add(field);
}