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Showing posts with label ASP.NET. Show all posts
Showing posts with label ASP.NET. Show all posts

Convert base64 into Image, Resize the image and again convert it into base64

| Saturday, March 5, 2016
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Convert base64 into Image, Resize the image and again convert it into base64

Use Following Code:

                       byte[] bytes = (byte[])row["Picture"];

                        Image image;

                       //Convert byte[] into image
                        using (MemoryStream ms = new MemoryStream(bytes))
                        {
                            image = Image.FromStream(ms);
                        }

                        // Resize the image
                        Bitmap b = new Bitmap(200, 200);
                        Graphics g = Graphics.FromImage((Image)b);
                        g.InterpolationMode = InterpolationMode.HighQualityBicubic;

                        g.DrawImage(image, 0, 0, 200, 200);
                        g.Dispose();
                        image = (Image)b;

                        using (MemoryStream ms = new MemoryStream())
                        {
                            // Convert Image to byte[]
                            image.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
                            byte[] imageBytes = ms.ToArray();

                            // Convert byte[] to Base64 String
                            string base64String = Convert.ToBase64String(imageBytes);
                            obj.StudentPicture = base64String;
                        }

Convert base64 into Image, Resize the image and again convert it into base64

Posted by : Stranger
Date :Saturday, March 5, 2016
With 0comments

Code to export the Grid View/Data Grid data into Excel File.

| Friday, February 13, 2015
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 protected void btnExportToExcel_Click(object sender, EventArgs e)  
   {  
     try  
     {  
       DataTable dt = student.GetDetails("B.Tech").Tables[0];  
       DataGrid GridView1 = new DataGrid();  
       GridView1.DataSource = dt;  
       GridView1.DataBind();  
       Response.Clear();  
       Response.Buffer = true;  
       Response.AddHeader("content-disposition", string.Format("attachment; filename=StudentsBTech.xls"));  
       Response.Charset = "";  
       Response.ContentType = "application/vnd.ms-excel";  
       StringWriter sw = new StringWriter();  
       HtmlTextWriter htw = new HtmlTextWriter(sw);  
       GridView1.GridLines = GridLines.Both;  
       GridView1.AllowPaging = false;  
       GridView1.RenderControl(htw);  
       Response.Output.Write(sw.ToString());  
       GridView1.DataBind();  
       Response.Flush();  
     }  
     catch (Exception ex)  
     {  
     }  
     finally { Response.End(); }  
   }  
   public override void VerifyRenderingInServerForm(Control control)  
   { }  

Code to export the Grid View/Data Grid data into Excel File.

Posted by : Stranger
Date :Friday, February 13, 2015
With 0comments

Could not add reference to "System.Net.Http.Formatting" namespace in WPF web api client project

| Friday, December 12, 2014
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For adding the reference in your web api client

1. Right click on "References" in the solution.
2. Following window will open.


3. Select location "Extension" as shown above and check "System.Net.Http.Formatting" namespace
4. and DONE!!!
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