uploadimageineditor.cs

这是一个简单的论坛程序源码

using System;
using System.Collections.Generic;
using System.IO;
using System.Web.Security;
using System.Configuration;
using System.Text;
using System.ComponentModel;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace NetFocus.Web.Applications.Forum
{
    public class UploadImageInEditor : SkinedControl
    {
        private FileUpload fu;
        private Button btnUpload;
        private Literal lblOK;

        protected override void AttachChildControls()
        {
            fu = (FileUpload)FindControl("fu");
            btnUpload = (Button)FindControl("btnUpload");
            lblOK = (Literal)FindControl("lblOK");

            if (btnUpload != null)
            {
                btnUpload.Click += new EventHandler(btnUpload_Click);
            }
        }
        private void btnUpload_Click(Object sender, EventArgs e)
        {
            if (fu.HasFile)
            {
                FileUploader thefu = new FileUploader();

                try
                {
                    thefu.CreatDirectory = bool.Parse(ConfigurationManager.AppSettings["AutoCreateDirectory"]);
                }
                catch
                {
                    Exception ex = new Exception("AutoCreateDirectory值错误！");
                    throw ex;
                }
                thefu.FileType = ConfigurationManager.AppSettings["FileTypes"];
                try
                {
                    thefu.NeedWaterMark = bool.Parse(ConfigurationManager.AppSettings["NeedWarterMark"]);
                }
                catch
                {
                    Exception ex = new Exception("NeedWarterMark值错误！");
                    throw ex;
                }

                thefu.Path = ConfigurationManager.AppSettings["StorageFolder"];
                thefu.Sizes = int.Parse(ConfigurationManager.AppSettings["FileSizeLimit"]);

                string src = thefu.Save(fu);
                if (src != null && src != "0")
                {
                    //循环处理发送url到文本框
                    string[] targetInput = ConfigurationManager.AppSettings["TargetInputID"].Split(',');
                    for (int scriptIndex = 0; scriptIndex <= targetInput.GetUpperBound(0); scriptIndex++)
                    {
                        Page.ClientScript.RegisterClientScriptBlock(Page.GetType(), "send" + scriptIndex.ToString(),
                            "<script language=\"javascript\">window.parent.document.getElementById('" +
                           targetInput[scriptIndex] +
                           "').value='" + src + "'</script>");
                        Page.ClientScript.RegisterClientScriptBlock(Page.GetType(), "focus" + scriptIndex.ToString(),
                            "<script language=\"javascript\">window.parent.document.getElementById('" +
                            targetInput[scriptIndex] +
                            "').focus()</script>");

                    }
                    fu.Visible = false;
                    btnUpload.Visible = false;
                    lblOK.Text = "文件已成功上传！";
                }
                else
                {
                    Page.ClientScript.RegisterClientScriptBlock(Page.GetType(), "error",
                        "<script language=\"javascript\">alert('上传失败，请检查：\\n1.站点设置是否正确？\\n2.目标目录是否有可写权限？\\n3.文件类型是否是允许的类型？\\n4.文件大小是否超出了限制（最大" +
                        ConfigurationManager.AppSettings["FileSizeLimit"] + "KB）？ ')</script>");
                }
            }
        }
    }
}