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   源码介绍

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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 System.Data.SqlClient;

public partial class ViewMail : System.Web.UI.Page
{

    int nFolderID = -1;
    
    protected void Page_Load(object sender, EventArgs e)
    {
        nFolderID = Int32.Parse(Request.Params["FolderID"]);
        if (Request.Params["FolderID"] != null)
        {
            if (Int32.TryParse(Request.Params["FolderID"].ToString(), out nFolderID) == false)
            {
                return;
            }
        }
        if (!Page.IsPostBack)
        {
            if (nFolderID > -1)
            {
                BindMailData(nFolderID);
                BindFolderData();
            }
        }
    }

    private void BindFolderData()
    {
        IFolder folder = new Folder();
        SqlDataReader dr = folder.GetFolders();

        FolderList.DataSource = dr;
        FolderList.DataTextField = "Name";
        FolderList.DataValueField = "FolderID";
        FolderList.DataBind();
        dr.Close();

        btnMoveTo.Enabled = FolderList.Items.Count > 0 ? true : false;

    }

    private void BindMailData(int nFolderID)
    {
        IMail mail = new Mail();
        SqlDataReader dr = mail.GetMailsByFolder(nFolderID);

        gv_ShowData.DataSource = dr;
        gv_ShowData.DataBind();
        dr.Close();
        DeleteBtn.Enabled = gv_ShowData.Rows.Count > 0 ? true : false;
    }
    protected void chkAll_CheckedChanged(object sender, EventArgs e)
    {
        foreach (GridViewRow row in gv_ShowData.Rows)
        {

            
        }
    }
    protected void DeleteBtn_Click(object sender, EventArgs e)
    {
        IMail mail = new Mail();
        try
        {
            foreach (GridViewRow row in gv_ShowData.Rows)
            {
                CheckBox checkMail = (CheckBox)row.FindControl("mycheck");
                if (checkMail != null)
                {
                    if (checkMail.Checked == true)
                    {
                        if (nFolderID==8)
                        {
                        mail.DeleteMailT(Int32.Parse(gv_ShowData.DataKeys[row.RowIndex].Value.ToString()));
                        IFolder folder = new Folder();
                        folder.SetMailDeleteT(nFolderID);
                        }
                        else
                        {
                        mail.DeleteMail(Int32.Parse(gv_ShowData.DataKeys[row.RowIndex].Value.ToString()));
                        IFolder folder = new Folder();
                        folder.SetMailDelete(nFolderID);
                        }

                    }
                }
            }

            BindMailData(nFolderID);
        }
        catch (Exception ex)
        {
            Response.Write("数据错误" ex.Message);
        }
    }
    protected void btnMoveTo_Click(object sender, EventArgs e)
    {
        IMail mail = new Mail();
        try
        {
            foreach (GridViewRow row in gv_ShowData.Rows)
            {
                CheckBox checkMail = (CheckBox)row.FindControl("mycheck");
                if (checkMail != null)
                {
                    if (checkMail.Checked == true)
                    {
                        mail.MoveMail(Int32.Parse(gv_ShowData.DataKeys[row.RowIndex].Value.ToString()), Int32.Parse(FolderList.SelectedValue));
                    }
                }
            }

            BindMailData(nFolderID);
        }
        catch (Exception ex)
        {
            Response.Write("It is wrong" ex.Message);
            Response.End();
        }
    }
}