Asp.net programming we consider all important topic for knowledge about controls,web Services, JSON, Ajax, database, and interview related Question. In this Asp.net and sql server tutorial blog we give many examples of jquery as like How Play YouTube Video in Your Asp.net Website by URL, How to Play YouTube Videos in Asp.net by using Jquery , Jquery Change div background on mouseover in asp.net , JQuery UI Datepicker (Calendar) etc.

Thursday, August 28, 2014

Cropping image using jQuery in asp.net

Upload and Crop Images using jQuery in asp.net with C#:



In this post we describe image uploading and cropping by using Jquery in asp.net web application. Many times we see on many web site basically social networking and other site which gives the facility of image uploading and cropping  for registration of user on website, they give cropping facility when we upload image on web page where we upload profile pic. In the asp.net we can perform this type of work also by using jquery or without jquery. As we know that jquery have many advantages like fast, good look and fill and jQuery is a very fast, feature-rich. Jquery gives small scripting. In this programming we also give introduction of Jquery with asp.net uses of Jquery in asp.net and Apply Jquery on asp.net pages. Here we give some important post list that is related to jqury in asp.net with different-2 Example.

JQuery related Posts in asp.net tutorial:


Image Crop and Upload with jQuery in asp.net:

Here I will explain how to crop image in asp.net using jQuery. I am going to explain How to crop image and save the cropped image using asp.net & jquery.

jQuery Crop Image in Asp.net:

jQuery Crop Image in Asp.net web application using Jcrop jQuery or  jQuery Image Cropper with Uploader or Image Upload with preview and crop in web site or Image Cropping inASP.Net Using jQuery and jCrop in asp.net website, many other types we search on google for solving this type of Problem. Here we give some code of segment and try to solve these questios.

Code for jQuery Crop Image in Asp.net:

CropAndSaveImageCSharp.aspx page code Example:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CropAndSaveImageCSharp.aspx.cs" Inherits="CropAndSaveImageCSharp" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title></title>
    <script type="text/javascript" src="http://code.jquery.com/jquery-1.8.2.js"></script>
   
    <script src="Scripts/jquery.Jcrop.js" type="text/javascript"></script>
    <link href="CSS/jquery.Jcrop.css" rel="stylesheet" />
    <script language="javascript" type="text/javascript">
        $(document).ready(function () {
            $('#<%=imgToCrop.ClientID%>').Jcrop({
                onSelect: getAreaToCrop
            });
        });
        function getAreaToCrop(c) {
            $('#XCoordinate').val(parseInt(c.x));
            $('#YCoordinate').val(parseInt(c.y));
            $('#Width').val(parseInt(c.w));
            $('#Height').val(parseInt(c.h));
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div style="width: 900px" align="center">
        <fieldset>
        <h1>Upload, crop and save image in asp.net with C# code Example</h1>
            <table>
                <tr>
                    <td>
                    <h3>Select image for upload :</h3>
                    <br />
                        <asp:FileUpload ID="FileUpload1" runat="server" />
                   
                    <br />
                        <asp:Button ID="Upload" runat="server" Text="Upload" OnClick="Upload_Click" />
                    </td>
                </tr>
                <tr>
                    <td colspan="">
                        <asp:Image ID="imgCropped" runat="server" />
                    </td>
                </tr>
                <tr>
                    <td colspan="">
                        <asp:Label ID="lblMsg" runat="server" ForeColor="Red" />
                    </td>
                </tr>
                <tr>
                    <td colspan="">
                        <asp:Button ID="btn_Reset" runat="server" Text="Reset" Visible="false" OnClick="btn_Reset_Click" />
                    </td>
                </tr>
            </table>
            <asp:Panel ID="pnlCrop" runat="server" Visible="false">
                <table>
                    <tr>
                        <td>
                            <asp:Image ID="imgToCrop" runat="server" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <asp:Button ID="btnCrop" runat="server" Text="Crop and Save"
                                OnClick="btnCrop_Click" BackColor="#990000" ForeColor="White" Height="37px" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <input id="XCoordinate" type="hidden" runat="server" />
                            <input id="YCoordinate" type="hidden" runat="server" />
                            <input id="Width" type="hidden" runat="server" />
                            <input id="Height" type="hidden" runat="server" />
                        </td>
                    </tr>
                </table>
            </asp:Panel>
        </fieldset>
    </div>
    </form>
</body>
</html> 
Cropping image using jQuery in asp.net
jQuery for Cropping image in asp.net
Crop And Save Image CSharp page C# code Example: 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Drawing;

public partial class CropAndSaveImageCSharp : System.Web.UI.Page
{
    protected void Upload_Click(object sender, EventArgs e)
    {
        string file = string.Empty;
        string file_Path = string.Empty;
        string extension = string.Empty;
        try
        {
            //Check if Fileupload control has file in it
            if (FileUpload1.HasFile)
            {
                // Get selected image extension
                extension = Path.GetExtension(FileUpload1.FileName).ToLower();
                //Check image is of valid type or not
                if (extension == ".jpg" || extension == ".jpeg")
                {
                    //Cretae unique name for the file
                    file = Guid.NewGuid().ToString() + extension;
                    //Create path for the image to store
                    file_Path = Path.Combine(Server.MapPath("~/Images"), file);
                    //Save image in folder
                    FileUpload1.SaveAs(file_Path);
                    //Show the panel and load the uploaded image in image control.
                    pnlCrop.Visible = true;
                    imgToCrop.ImageUrl = "~/Images/" + file;
                }
                else
                {
                    lblMsg.Text = "Please select jpg, jpeg Image only  ";
                }
            }
            else
            {
                lblMsg.Text = "Select file and just upload";
            }
        }
        catch (Exception ex)
        {
           
        }
        finally
        {
            extension = string.Empty;
            file = string.Empty;
            file_Path = string.Empty;
        }
    }

    protected void btnCrop_Click(object sender, EventArgs e)
    {
        string cropped_File_Name = string.Empty;
        string cropped_File_Path = string.Empty;
        //get uploaded image name of strored name
        string file_Name = Path.GetFileName(imgToCrop.ImageUrl);    
        string file_Path = Path.Combine(Server.MapPath("~/Images"), file_Name);      
        if (File.Exists(file_Path))
        {
            //Get the image from UploadedImages folder.
            System.Drawing.Image orgImg = System.Drawing.Image.FromFile(file_Path);          
            Rectangle areaToCrop = new Rectangle(
                Convert.ToInt32(XCoordinate.Value),
                Convert.ToInt32(YCoordinate.Value),
                Convert.ToInt32(Width.Value),
                Convert.ToInt32(Height.Value));
            try
            {
                Bitmap bitMap = new Bitmap(areaToCrop.Width, areaToCrop.Height);             
                using (Graphics g = Graphics.FromImage(bitMap))
                {                   
                    g.DrawImage(orgImg, new Rectangle(0, 0, bitMap.Width, bitMap.Height), areaToCrop, GraphicsUnit.Pixel);
                }             
                cropped_File_Name = "crop_" + file_Name;
                //Create path to store the cropped image
                cropped_File_Path = Path.Combine(Server.MapPath("~/Images"), cropped_File_Name);
                //save cropped image in folder
                bitMap.Save(cropped_File_Path);
                orgImg.Dispose();
                bitMap = null;
                //Now you can delete the original uploaded image from folder               
                File.Delete(file_Path);             
                pnlCrop.Visible = false;             
                lblMsg.ForeColor = Color.Red;
                lblMsg.Text = " saved successfully";

                //Show cropped image on asp.net web page.
                imgCropped.ImageUrl = "~/Images/" + cropped_File_Name;

                //Show Reset button on page
                btn_Reset.Visible = true;
            }
            catch (Exception ex)
            {              
            }
            finally
            {
                file_Name = string.Empty;
                file_Path = string.Empty;
                cropped_File_Name = string.Empty;
                cropped_File_Path = string.Empty;
            }
        } 
    }
    protected void btn_Reset_Click(object sender, EventArgs e)
    {
        reset();
    } 
    public void reset()
    {
        imgCropped.ImageUrl = "";
        lblMsg.Text = string.Empty;
        btn_Reset.Visible = false;
    }
}



Download Example code here: https://drive.google.com/file/d/0B77RzHHUDcrta2JoLVpMbWZ6S2c/edit?usp=sharing

Here we give the list of Examples in asp.net:




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