在asp.net中保存图像标记中的图像 [英] save image from image tag in asp.net

问题描述

你好朋友



i一直在努力'保存图片来自< asp：image tag'我只是一点点想法HttpWebRequest会帮助我但我不能实现这个。

plz给出一些关于这个的链接或想法或样本

谢谢

hello friends

i have struggle with to 'save the image from <asp:image tag' i have just little idea HttpWebRequest will help me but i could not be implementing this.
plz give some link or idea or sample regarding this
thanks

推荐答案

听到的是解决方案我的问题

hear is solution of my question

protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
            txtBarCodeText.Focus();

        var barcode = new Code39BarCode()
        {
            BarCodeText = "HELRE WORLD",
            BarCodeWeight = BarCodeWeight.Medium,
            Height = 100
        };

        byte[] fileContents = barcode.Generate();

        string filePath = Server.MapPath("~/barcode.gif");
        File.WriteAllBytes(filePath, fileContents);
        string filepath1 = Server.MapPath("~/barcode.gif");
        string fn= Guid.NewGuid()+filepath1.Substring(filepath1.LastIndexOf("."));
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://localhost:1231/WebFormsDemo/barcode.gif");
        HttpWebResponse response = (HttpWebResponse)request.GetResponse();
        System.Drawing.Image img = System.Drawing.Image.FromStream(response.GetResponseStream());
        //imgbar is folder name which is stored the new image

        img.Save(Server.MapPath("imgbar/")+fn);

    }

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