1.grid判断查看哪一行的CheckBox被选中      

foreach(GridViewRow row in this.StudentGridView.Rows)

        {

            Control ctrl = row.FindControl("CheckBox");

         

                if ((ctrl as CheckBox).Checked)

                {

                    TableCellCollection cell = row.Cells;

                    string studentCode = cell[1].Text;

                 }                

         }

 

2.递归

 

// 清空控件内容

private void ClearText(Control ctr) {

    for (int i = 0; i < ctr.Controls.Count; i++) {

        // 若当前控件内部包含其他控件则继续遍历

        if (ctr.Controls[i].Controls.Count > 0) {

            ClearText(ctr.Controls[i]);

        } else {

            // 判断控件类型，做相应处理

            if (ctr.Controls[i] is TextBox) {

                TextBox txt = null;

                txt = ctr.Controls[i] as TextBox;

                txt.Text = string.Empty;

            } else if (ctr.Controls[i] is ComboBox) {

                ComboBox cbo = null;

                cbo = ctr.Controls[i] as ComboBox;

                cbo.Text = string.Empty;

            }

        }

    }

}