App_Code/StudentMgr.cs

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using System;
using System.Data;
using System.Data.SqlClient;

/// <summary>
/// Student管理类
/// </summary>
public class StudentMgr
{
	/// <summary>
	/// 初始化管理类
	/// </summary>
	public StudentMgr()
	{
	}

	#region　函数UpdateStudent | 更新Student信息
	/// <summary>
	/// 更新Student类信息
	/// </summary>
	/// <param name="student">学生类参数</param>
    /// <param name="IsNew">是否为新增学生1为是，0为否</param>
	/// <returns>更新成功返回true 否则返回false</returns>
	public bool UpdateStudent(Student student,int IsNew)
	{
		string strSQL = "";
		SqlDataAdapter sa = null;
		SqlCommandBuilder builder = null;
		DataRow row = null;
		DataTable dt = null;
		bool returnValue = false;
		if (student != null)
		{
			if (IsNew == 1)
			{
				strSQL = "SELECT Top 0 * FROM Experiment_Student";
			}
			else
			{
				strSQL = "SELECT * FROM Experiment_Student WHERE StudentID = " + student.StudentID.ToString();
			}

			dt = CMMgr.GetDataTable(strSQL);

			if (IsNew == 0)
			{
				row = dt.Rows[0];
			}
			else
			{
				row = dt.NewRow();
			}
            row["StudentID"] = student.StudentID;
			row["StudentName"] = student.StudentName;
			row["Sex"] = student.Sex;
			row["Password"] = student.Password;

			if (IsNew == 1)
			{
				dt.Rows.Add(row);