asp.net简单页面控件赋值实现方法

/// <summary>
/// 赋值 表名，控件名，要查询的唯一数据
/// </summary>
protected void SetEvaluate(string TableName, string UpName, string Id)
{
 ContentPlaceHolder cph = (ContentPlaceHolder)Page.Master.FindControl("cph_context");
 UpdatePanel up = (UpdatePanel)cph.FindControl(UpName);
 DataTable dt = LOaPersonLogic.GetPersonTemp("select * from " + TableName + " where ID='" + Id + "'");
 for (int i = 0; i < dt.Columns.Count; i++)
 {
 //集合表头名称 dt.Columns[i]
 //集合值dt.Rows[0][i].ToString()
 foreach (Control ctl in up.Controls[0].Controls)
 {
 if ((ctl is TextBox) && ctl.ID.Trim() == dt.Columns[i].ToString().Trim())
 {
 ((TextBox)ctl).Text = dt.Rows[0][i].ToString();
 }
 if ((ctl is DropDownList) && ctl.ID.Trim() == dt.Columns[i].ToString().Trim())
 {
 ((DropDownList)ctl).Items.FindByValue(dt.Rows[0][i].ToString().Trim()).Selected = true;
 }
 }
 }
}
/// <summary>
/// 生成sql 修改sql
/// </summary>
/// <param name="TableName">表名称</param>
/// <param name="WyId">唯一id主键</param>
/// <param name="UpName"></param>
/// <param name="Id">修改id</param>
protected string CreateSql(string TableName, string WyId, string UpName, string Id)
{
 string SQL = "update " + TableName + " set ";
 ContentPlaceHolder cph = (ContentPlaceHolder)Page.Master.FindControl("cph_context");
 UpdatePanel up = (UpdatePanel)cph.FindControl(UpName);
 foreach (Control ctl in up.Controls[0].Controls)
 {
 if (ctl is TextBox)
 {
 SQL = SQL + ctl.ID + "='" + ((TextBox)ctl).Text + "',";
 }
 if (ctl is DropDownList)
 {
 SQL = SQL + ctl.ID + "='" + ((DropDownList)ctl).SelectedItem.Value.Trim() + "',";
 }
 }
 if (SQL.IndexOf(',') > -1)
 {
 SQL = SQL.Substring(0, SQL.Length - 1) + " where " + WyId + "='" + Id + "'";
 }
 return SQL;
}