frmpwd.cs

一个学籍管理系统 以在某高校投入使用了

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;

namespace prjClass
{
	/// <summary>
	/// frmPwd 的摘要说明。
	/// </summary>
	public class frmPwd : System.Windows.Forms.Form
	{
		private string user;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.TextBox txtpwd;
		private System.Windows.Forms.TextBox txtpwd1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.TextBox txtpwd2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Button btnOK;
		private System.Windows.Forms.Button btnCancle;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public frmPwd(string user)
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();
			this.user=user;

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			this.label1 = new System.Windows.Forms.Label();
			this.txtpwd = new System.Windows.Forms.TextBox();
			this.txtpwd1 = new System.Windows.Forms.TextBox();
			this.label2 = new System.Windows.Forms.Label();
			this.txtpwd2 = new System.Windows.Forms.TextBox();
			this.label3 = new System.Windows.Forms.Label();
			this.btnOK = new System.Windows.Forms.Button();
			this.btnCancle = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(32, 48);
			this.label1.Name = "label1";
			this.label1.TabIndex = 0;
			this.label1.Text = "原始密码";
			// 
			// txtpwd
			// 
			this.txtpwd.Location = new System.Drawing.Point(96, 48);
			this.txtpwd.Name = "txtpwd";
			this.txtpwd.PasswordChar = '*';
			this.txtpwd.Size = new System.Drawing.Size(168, 21);
			this.txtpwd.TabIndex = 1;
			this.txtpwd.Text = "";
			// 
			// txtpwd1
			// 
			this.txtpwd1.Location = new System.Drawing.Point(96, 120);
			this.txtpwd1.Name = "txtpwd1";
			this.txtpwd1.PasswordChar = '*';
			this.txtpwd1.Size = new System.Drawing.Size(168, 21);
			this.txtpwd1.TabIndex = 3;
			this.txtpwd1.Text = "";
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(32, 120);
			this.label2.Name = "label2";
			this.label2.TabIndex = 2;
			this.label2.Text = "新密码";
			// 
			// txtpwd2
			// 
			this.txtpwd2.Location = new System.Drawing.Point(96, 200);
			this.txtpwd2.Name = "txtpwd2";
			this.txtpwd2.PasswordChar = '*';
			this.txtpwd2.Size = new System.Drawing.Size(168, 21);
			this.txtpwd2.TabIndex = 5;
			this.txtpwd2.Text = "";
			// 
			// label3
			// 
			this.label3.Location = new System.Drawing.Point(32, 200);
			this.label3.Name = "label3";
			this.label3.TabIndex = 4;
			this.label3.Text = "密码确认";
			// 
			// btnOK
			// 
			this.btnOK.Location = new System.Drawing.Point(40, 272);
			this.btnOK.Name = "btnOK";
			this.btnOK.TabIndex = 6;
			this.btnOK.Text = "确认";
			this.btnOK.Click += new System.EventHandler(this.btnOK_Click);
			// 
			// btnCancle
			// 
			this.btnCancle.Location = new System.Drawing.Point(192, 272);
			this.btnCancle.Name = "btnCancle";
			this.btnCancle.TabIndex = 7;
			this.btnCancle.Text = "取消";
			this.btnCancle.Click += new System.EventHandler(this.btnCancle_Click);
			// 
			// frmPwd
			// 
			this.AcceptButton = this.btnOK;
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(328, 333);
			this.Controls.Add(this.btnCancle);
			this.Controls.Add(this.btnOK);
			this.Controls.Add(this.txtpwd2);
			this.Controls.Add(this.txtpwd1);
			this.Controls.Add(this.txtpwd);
			this.Controls.Add(this.label3);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
			this.MaximizeBox = false;
			this.Name = "frmPwd";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "密码修改";
			this.ResumeLayout(false);

		}
		#endregion

		private void btnCancle_Click(object sender, System.EventArgs e)
		{
			this.Close();
		}
		
		private void btnOK_Click(object sender, System.EventArgs e)
		{
			string Sql = "select * from Class..UserInfo where UserID = '"+this.user+"' and UserPwd = '"+this.txtpwd.Text+"'";
			string SqlUpdate = "update Class..UserInfo set userPwd = '"+this.txtpwd1.Text+"' where userID = '"+this.user+"'";
			Class1 c = new Class1();
			if(c.IsExits(Sql)==false)
			{
				MessageBox.Show("原始密码输入有误","提示信息!",MessageBoxButtons.OK,MessageBoxIcon.Question);
			}
			else if(this.txtpwd1.Text!=this.txtpwd2.Text)
			{
				MessageBox.Show("两次密码输入不一致","提示信息!",MessageBoxButtons.OK,MessageBoxIcon.Question);
			}
			else
			{
				c.EditData(SqlUpdate);
				if(MessageBox.Show("密码修改成功!","提示信息!",MessageBoxButtons.OK,MessageBoxIcon.Information)==DialogResult.OK)
				{
					this.Close();				
				}	
			}
		}

		
	}
}