动态添加TemplateField列

GridViewTextTemplate类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI.WebControls;

/// <summary>
///GridViewTextTemplate 的摘要说明
/// </summary>
public class GridViewTextTemplate : System.Web.UI.ITemplate
{
    private DataControlRowType templateType;

    private string columnName;

    private string cId;


    public GridViewTextTemplate(DataControlRowType type, string colname, string controlId)
    {

        templateType = type;

        columnName = colname;

        cId = controlId;

    }


    public void InstantiateIn(System.Web.UI.Control container)
    {

        // Create the content for the different row types.

        switch (templateType)
        {

            case DataControlRowType.Header:

                // Create the controls and set id properties to put in the header
                Literal myHeadLiteral = new Literal();

                myHeadLiteral.ID = cId;

                myHeadLiteral.Text = "<B>" + columnName + "</B>";


                container.Controls.Add(myHeadLiteral);
                break;

            case DataControlRowType.DataRow:

                // Create the controls and set id properties to put in a data row

                TextBox myTextBox = new TextBox();

                myTextBox.ID = cId;

                myTextBox.DataBinding += new EventHandler(this.TextBoxDataBinding);

                myTextBox.Width = 100;
                container.Controls.Add(myTextBox);

                break;

            default:

                // Insert code to handle unexpected values.

                break;

        }

    }


    private void TextBoxDataBinding(Object sender, EventArgs e)
    {

        TextBox myTextBox = (TextBox)sender;

        GridViewRow row = (GridViewRow)myTextBox.NamingContainer;


        myTextBox.Text = System.Web.UI.DataBinder.Eval(row.DataItem, columnName).ToString();

    }

}

在后台GridView动态添加TemplateField：

	//parameter_description绑定的数据 textParameterDesc是Text的ID
        TemplateField tField;
        tField = new TemplateField();
        tField.HeaderTemplate = new GridViewTextTemplate(DataControlRowType.Header, "说明", "textParameterDescHd");
        tField.ItemTemplate = new GridViewTextTemplate(DataControlRowType.DataRow, "parameter_description", "textParameterDesc");
        GridView1.Columns.Add(tField);

或者：

GridView1.Columns.Add(new TemplateField() { HeaderTemplate = new GridViewTextTemplate(DataControlRowType.Header, "序号", ""), ItemTemplate = new GridViewTextTemplate(DataControlRowType.DataRow, "PlanSN", "") });