a_experiments.aspx.cs

实验课预约系统。采用.net+access数据库实现。 管理员对学生教师有管理功能

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using ExpReserve;
//该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)

public partial class A_Experiments : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Admin aAdmin = (Admin)this.Master;
            aAdmin.ManageTitle = "实验项目管理";
            aAdmin.MenuSelectedValue = "ExpManage";
            this.fsItem.Visible = false;
            Initialize();
            this.btnDel.Attributes.Add("onclick", "return  confirm('您真的要删除吗？');");
            this.lbMsg.Text = "";
            this.ddlTerm.SelectedValue = SingleInitials.DbAccess.GetActiveTerm();
            UIControls.BindCourseDDL(ddlCourse, ddlTerm.SelectedValue);
            //this.ddlCourse.Items.Insert(0,"请选择..");
            this.ddlCourse.SelectedIndex = 0;
            BindDisplayList(0,"");
        }

    }


    #region 属性
    static int m_ColID = 0;
    public string CurrentTerm
    {
        get
        {
            return this.ddlTerm.SelectedValue;
        }
    }
    public string CurrentCourse//当前实验科目
    {
        get
        {
            if (this.ddlCourse.SelectedIndex == 0)
            {
                return "";
            }
           return this.ddlCourse.SelectedValue;
        }

    }

    #endregion


    #region 操作函数
    /// <summary>
    /// 返回所有的实验项目批次
    /// </summary>
    /// <param name="pageIndex"></param>
    /// <param name="sortExpression">要排序的字段</param>
    private void BindDisplayList(int pageIndex, string sortExpression)
    {
        lbMsg.Text = "";
        ExperimentsList.Columns[m_ColID].Visible = true;
        ExperimentsList.SelectedIndex = -1;


        DataTable dt = SingleInitials.DbAccess.GetCourseDetailDataSet(CurrentTerm, CurrentCourse).Tables[0];//返回所有列表

        if (sortExpression == null || sortExpression == string.Empty)
        {
            JKLib.Web.GridViewOperation.BindPagingGridView(ExperimentsList, dt.DefaultView, pageIndex);
        }
        else
        {
            JKLib.Web.GridViewOperation.BindPagingGridView(ExperimentsList, dt.DefaultView, pageIndex, sortExpression, true, JKLib.Web.GridViewOperation.BindPagingGridViewType.Sorting);
        }
        ExperimentsList.Columns[m_ColID].Visible = false;
    }

    private void Initialize()
    {
       //绑定下拉列表
        UIControls.BindTermsDDL(ddlTerm);
        UIControls.BindTermsDDL(ddlInputTerm);
        
    }

    private void DisplayItem(string mID)
    {
        fsItem.Visible = true;
        if (mID == "-1")
        {
            btnDel.Visible = false;
            legendItem.InnerText = "新增";
            NewItem();
        }
        else
        {
            btnDel.Visible = true;
            legendItem.InnerText = "修改";
            LoadItem(int.Parse(mID));
        }
    }
   
    private bool CheckInput(ref string strError)
    {
        strError = "";
        bool retValue = true;
        if (tbxCourseDetailName.Text.Trim() == "")
        {
            strError += "请输入实验项目名;";
            retValue = false;
        }


        if (ddlTerm.SelectedIndex == 0)
        {
            strError += "请选择学期;";
            retValue = false;
        }

        if (eddCourseName.Text.Trim() == "")
        {
            strError += "请输入实验科目;";
            retValue = false;
        }

        return retValue;

    }
    private bool Save()
    {
        string errStr = "";
        if (!CheckInput(ref errStr))
        {
            lbMsg.Text = errStr;
            return false;
        }

        try
        {
            if (this.tbxKeyID.Text == "-1")
            {
                //添加
                Experiment aExperiment = new Experiment();
                aExperiment.CourseDetailName = this.tbxCourseDetailName.Text;
                aExperiment.CourseName = this.eddCourseName.Text;
                aExperiment.TermName = this.ddlInputTerm.SelectedValue;

                return SingleInitials.DbAccess.AddAExperiment(aExperiment);
            }
            else
            {
                //修改
                Experiment aExperiment = new Experiment();
                aExperiment.ID = long.Parse(this.tbxKeyID.Text);
                aExperiment.CourseDetailName = this.tbxCourseDetailName.Text;
                aExperiment.CourseName = this.eddCourseName.Text;
                aExperiment.TermName = this.ddlInputTerm.SelectedValue;
                return SingleInitials.DbAccess.EditAExperiment(aExperiment);
            }
        }
        catch (Exception ex)
        {
            lbMsg.Text = ex.Message;
            return false;

        }
        
    }
    
    private void NewItem()
    {
        // 清空编辑界面 
        tbxCourseDetailName.Text = "";
        ddlInputTerm.SelectedIndex = this.ddlTerm.SelectedIndex;

        if (this.ddlCourse.SelectedIndex != 0)
        {
            eddCourseName.Text = this.ddlCourse.SelectedValue;
        }
        else
        {
            eddCourseName.Text = "";
        }
    }

    private void LoadItem(int mID)
    {
        Experiment aExperiment = SingleInitials.DbAccess.GetAExperiment(mID);

        tbxKeyID.Text = aExperiment.ID.ToString();
        tbxCourseDetailName.Text = aExperiment.CourseDetailName;
        ddlInputTerm.SelectedValue = aExperiment.TermName;
        eddCourseName.Text = aExperiment.CourseName;
    }

    #endregion


    #region 表格处理
    protected void BatchList_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        BindDisplayList(e.NewPageIndex, null);
    }
    protected void BatchList_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName == "ExperimentEdit")
        {
            ExperimentsList.SelectedIndex = int.Parse(e.CommandArgument.ToString());
            string theID = ExperimentsList.Rows[int.Parse(e.CommandArgument.ToString())].Cells[m_ColID].Text;
            tbxKeyID.Text = theID;
            DisplayItem(theID);
        }
        
    }
    protected void BatchList_RowCreated(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.Pager)
            JKLib.Web.GridViewOperation.GridRowCreated(sender, e);
    }
    protected void BatchList_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        
    }
    protected void BatchList_Sorting(object sender, GridViewSortEventArgs e)
    {
        BindDisplayList(ExperimentsList.PageIndex, e.SortExpression);
    }
    #endregion


    #region 列表事件处理
   
    #endregion


    #region 按钮事件
    protected void btnNewBatch_Click(object sender, EventArgs e)
    {
        this.tbxKeyID.Text = "-1";
        DisplayItem(tbxKeyID.Text);
    }
    protected void btnDel_Click(object sender, EventArgs e)
    {
        try
        {
            int lastPageIndex = this.ExperimentsList.PageIndex;
            string lastTerm = this.ddlTerm.SelectedValue;
            string lastCourse = this.ddlCourse.SelectedValue;

            SingleInitials.DbAccess.DelAExperiment(long.Parse(tbxKeyID.Text));//开始删除
            
            UIControls.BindCourseDDL(ddlCourse, lastTerm);
            if (null != ddlCourse.Items.FindByText(lastCourse))
            {
                ddlCourse.SelectedValue = lastCourse;
            }
            
            BindDisplayList(0, "");//更新列表
            if (lastPageIndex < this.ExperimentsList.PageCount)
            {
                BindDisplayList(lastPageIndex, "");//更新列表
            }
            //ddlTerm_SelectedIndexChanged(this, new EventArgs());
            fsItem.Visible = false;
        }
        catch (Exception ex)
        {
            lbMsg.Text = ex.Message;
        }
    }
    protected void btn_Save_Click(object sender, EventArgs e)
    {
        if (Save())
        {
            int lastPageIndex = this.ExperimentsList.PageIndex;
           
            
            //UIControls.BindCourseDDL();
            UIControls.BindTermsDDL(this.ddlTerm);
            this.ddlTerm.SelectedValue = this.ddlInputTerm.SelectedValue;
            UIControls.BindCourseDDL(ddlCourse, this.ddlTerm.SelectedValue);
            ddlCourse.SelectedValue = this.eddCourseName.Text;
            
            if ("-1" == this.tbxKeyID.Text)//添加
            {
                this.BindDisplayList(0, "");//更新列表
            }
            else//修改
            {
                this.BindDisplayList(lastPageIndex, "");//更新列表
            }

            this.fsItem.Visible = false;
        }
    }
    #endregion
    protected void ddlTerm_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (ddlTerm.SelectedIndex != 0)
        {
            UIControls.BindCourseDDL(ddlCourse, ddlTerm.SelectedValue);
        }
        this.fsItem.Visible = false;
    }
    protected void ddlInputTerm_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (ddlInputTerm.SelectedIndex != 0)
        {
            UIControls.BindCourseEDD(eddCourseName,this.ddlInputTerm.SelectedValue);
        }
    }
    protected void ddlCourse_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (ddlTerm.SelectedIndex != 0)//选中某个学期的时候才更新列表
        {
            this.BindDisplayList(0, "");
        }
        this.fsItem.Visible = false;
    }
}