C# :: Retrieve Image From Database And Display In Picturebox
Sep 18, 2014
I am creating an employee details project, the image is getting stored in the database but i am not able display it in the picture box.
private void button1_Click(object sender, EventArgs e) {
SqlConnection con = new SqlConnection(Connectionstring);
con.Open();
SqlCommand cmd = new SqlCommand("select photo from emprecordtable where eid='"+comboBox1.Text+"'", con);
//SqlDataAdapter da = new SqlDataAdapter(cmd);
//DataSet ds = new DataSet();
[code] ....
In sql server i have table called emprecordtable and i have the fields eid, rfid, empname, designation, phno, addres, and photo which is the image field and i have given the datatype as image but in the database the image is getting stored as Binary Data.. So, how to display in the picturebox from the database.
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Jun 13, 2014
I've been working on making a sprite generator and this is one thing that has kept giving me difficulties. No matter what I've looked up nothing directly says how to nor can I find anything on a similar topic to try and apply to it either. I know how to add the resources and names for the options but how do I get the options to make my picturebox image change in relation to the selection?
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Aug 23, 2013
What i'm trying to do is load an image from my database create some graphics to it. probably just some lines and marks and save it back to my database. here's so far what I got.
for creating graphics:
} private void pictureBox3_MouseDown(object sender, MouseEventArgs e) {
draw = true;
} private void pictureBox3_MouseMove(object sender, MouseEventArgs e) {
if (draw) {
Graphics g = Graphics.FromImage(pictureBox3.Image);
[Code] ....
but the saving part doesnt work :( I think it only saves the image loaded to the picturebox but not the graphics created to it. how to merge it? i've tried to google it and found some sort of same cases but fails to make it work, something like converting it to bitmap.
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Feb 17, 2014
I wanted to retrieve all rows from database and display in listview using list<string>
con.Open();
MySqlCommand view = new MySqlCommand("Select Cust_ID,Fname,Mname from Customer;", con);
MySqlDataReader v1 = view.ExecuteReader();
while (v1.Read()) {
for (int i = 0; i < v1.FieldCount; i++){
result.Add(v1["Cust_ID"].ToString());
[Code] .....
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Nov 25, 2014
i have a form in which i have a field date of birth , and a textbox to fill date of birth , when a person fills his date of birth like 01/01/1990 , then it will be saved into database , and when i retrieve this date form database then this comes 01/01/1990 12:00 AM , i want only date part from it.
This is my form to fillup date of birth
form.aspx
<tr>
<td width="30%">
Date of Birth
<br />
</td> <td style="width: 1px">
:<asp:TextBox ID="txtDateofBirth" runat="server" placeholder="dd/mm/yyyy"></asp:TextBox>
</td> <td class="td2">
</td>
</tr>
this is code for form.aspx.cs
SqlCommand cmd = new SqlCommand("insert into ApplicantForm(NameofApplicant, dateofbirth)" +
"values( @NameofApplicant, convert(Datetime, @dateofBirth, 103)", con);
cmd.Parameters.AddWithValue("@dateofBirth",txtDateofBirth.Text);
this is code for print of this date of birth
print.aspx
<asp:Label ID="txtDOB" runat="server" ></asp:Label>
this is code print.aspx.cs
SqlCommand cmd = new SqlCommand("Select * from ApplicantForm Where ApplicantId=" + ((Request.QueryString["ApplicantId"])) + "", con);
dr = cmd.ExecuteReader();
txtDOB.Text = dr["dob"].ToString();
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Jan 17, 2013
i am student working on a project in c# to maintain the datas from a solar battery monitoring.i already imported the datas from the battery monnitoring and saved them in mysql database and retrived the data in c#.
i have problem in retriving the data in accordance with the date and time range selection.
what i am trying to do is there are more than 1000 datas in the table if i select two date and time the datas in the table should cross check these dates and show all the datas in the table in between those date&time
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Sep 10, 2013
I am trying to retrieve an image from its URL as an array where each box represents the pixel value of the image.
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Mar 3, 2014
I'm currently reading/programming from "Head first C#" book. I have this project which is making a program that has four dogs which race and there are three players that can bet on the race. I need to learn how to make the "dogs" (picture boxes) move from left end to the right end of a picture box.
Here is the code:
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
[Code].....
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Mar 11, 2014
The documentation states that "An image list is a collection of same-sized images" [URL].....
But how do I retrieve that size? I have a pointer to an empty image list. The size was set during creation, but that's out of my control.
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Dec 12, 2014
I have:
An Access database in which the picture right now is saved by its directory, together with other field like title, publisher, developer,..
Visual Studio form in which a load button gets that directory as text
Details button that reads the ID of a selected item (I have a list of games) and displays the corresponding picture by reading the directory
The problem right now is that once someone else opens the program on his/her computer, the directory changes, making the whole thing useless.
Is there a way to get around this problem? The books I've been reading don't really adress this.
Directory is a string in class 'Game'; it's short text in the database
private void buttonFoto_Click(object sender, EventArgs e) {
LoadNewFile();
}
private void LoadNewFile() {
OpenFileDialog ofd = new OpenFileDialog();
[code].....
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Jan 25, 2015
How to insert and read images to/from database (sql server) using MFC ?
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Nov 1, 2013
My below code is createing databases(database here is a kd tree) and indexing one image per database. I have two classes LastDatabaseTndexingPolicy and another forwardingDatabaseaccessor.cpp .
I am calling the GetDatabaseToAccess() function from forwardingDatabaseAccessor.cpp class .GetDatabaseToAccess() function is present in LastDatabaseTndexingPolicy class and it returns the database created as a pointer and using that database pointer we call another function which actually indexes the image to the database .
Now my issue is i am not able to have multiple threads act on the following functions as DatabaseAccessor_ptr db which is in the following file is coupled with two functions and however i put locks in the LastDatabaseTndexingPolicy file as below i end up getting synchronization issue ..........
Hence now i am using a single lock in forwardingDatabaseAccessor.cpp and serializing the code,. How can i change my design to parallelize this code .........
In ForwardingDatabaseAccessor.cpp we are calling function from LastDatabaseTndexingPolicy as shown below:-
DatabaseAccessor_ptr db is something which needs to be synchroinized. I tried createing 256 databases with one image each and when i run this code i ended up creating 175 databses and though i was restricting in code with locks that every database has only one image i ended up having two images in single database ..... ideally i had to get only one image per database but i got two images in few of them hence instead of 256 database this code created 175 or so databases.
indexing::IndexReturnValue ForwardDatabaseAccessor::index(cv::Mat image,
const std::string& imageName, features::Camera::Type indexCameraType,
features::Camera::Type recogCameraType) {
DatabaseAccessor_ptr db = this->IndexingPolicy_ptr->GetDBToIndex();
[Code] .....
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Mar 27, 2013
I'm pretty new to C, just looking to see how to display a image and some text to go along with it so far I can display in the image but cannot display the text at the same time.
This is my source code below
Code:
#include <stdio.h>
#include <gd.h>
int main() {
gdImagePtr gdImage = gdImageCreate( 100, 100 );
[Code]...
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Feb 9, 2013
I have patient_table in the database. which contain Id, name ,Image & other fields I have inserted the image in the Byte form in the database.Now i want to display all records in the Datagrid view in windows Form.
i am able to display id & Name & all fields but unable to display the image of a patient in the datagrid view.
I put all the records in the genric list:-
public static List<Personal_Details> AllMembers() {
List<Personal_Details> listMembers = new List<Personal_Details>();
Personal_Details pDetails;
try {
String Constring = ConnectionString.dataBaseConnectionString;
[code]...
i am unable to write the code for displaying the image on data gridview.
I am unable to find the solution for binding the image field in the datagrid view.
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Nov 21, 2013
how to display an image on the output screen of c++ program.
I am using : Turbo c++(dos box) on win8
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Feb 4, 2013
I have a project which opens an image in PictureBox1, no problem. But the Public Static Color method at the bottom of the code is not working. I was hoping it would display the average value of the pixels in the image. why it is not working?
Code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing.Imaging;
using System.Drawing;
[Code]...
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Sep 17, 2013
how to insert an image to display in output on c++..
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Nov 25, 2012
Used some online code example to put a little project to display raw image. The display does not seem to work.For some purposes, I like this to work with a dialog based MFC project.XDVView is derived from CScrollView.
See OnInitDialog() and OnDraw(CDC* pDC).8bit 768x756
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Feb 12, 2014
using System;
using System.Collections.Generic;
using System.ComponentModel;
[Code]....
find the attachment.
Data is displaying in grid view but when i enter the particulars it's not inserting in to DB & grid view.
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Oct 6, 2012
I want to display the content of my database in list view. The table has 5 columns however when I tried this code
string view = "Select * from cust_infor";
SqlCommand cmd = new SqlCommand(view,FL.clsconnection.opencon());
SqlDataReader dr = cmd.ExecuteReader();
listView1.Items.Clear();
while (dr.Read()) {
listView1.Items.Add(dr[0].ToString()).SubItems.Add(dr[1].ToString());
}
It limits the display to 2 columns. List view will only show the first 2 columns. The code above won't let me add more indexes or subitems. Only up to 2 columns.
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Mar 20, 2013
How to store and display an 8 bit Gray scale image in C captured from 8 bit Camera?
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Apr 7, 2015
Im trying to convert a base 64 string to an image and store in a gridview control (windows 8)
instead of an image im seeing text in the control
Windows.UI.Xaml.MediaImaging.Bitmap
convert base 64 string to bitmap
public async Task<BitmapImage> Base64ToImage(string base64)
{
var bitmap = new BitmapImage();
var buffer = Convert.FromBase64String(base64);
using (var stream = new Windows.Storage.Streams.InMemoryRandomAccessStream()) {
[Code] ....
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Aug 18, 2012
I was looking at this code:
private void button1_Click(object sender, EventArgs e)
{
string input = textBox3.Text;
[Code].....
And how to rewrite the code so that it display the MySQL table data for a specific user I already have a string called username and that stores the username entered on the login form. I want the code to use the username string to search for the name and display that users info.
My table contents are: username
First name
Last name
Position
Employee Id
Airline
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Jul 29, 2014
I am writing a program to display values from a data file as an image. But I can only get a blue screen. Here is a small program resembling my code. what I have missed? I only changed OnDraw function.
Code:
void CColorDisplayView::OnDraw(CDC* pDC) {
CColorDisplayDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
if (!pDoc)
return;
CRect rect;
[code].....
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Mar 24, 2015
I am working with windows mobile 6.5 and sql compact, trying to create application to save pic on database but when i try to save pic that loaded to picturebox it giving this error "could not find file 'picturebox" and in windows mobile we don't have imagelocation property and this is code that i use it
using System;
using System.Linq;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
[code]....
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Aug 22, 2014
I have a picture box, inside a table layout panel. The default size for the picture box is 456, 457. However, what I want to do is have the picture box be the size of the available area, even if the form is full screen.
I have the picture box dock set to fill etc. but not matter what I do, it refuses to change the dimensions from the ones above.
The only work around I could find that worked was this:
this.pbMainMap.Size = new Size(Screen.GetWorkingArea(this).Width, Screen.GetWorkingArea(this).Height);
Which is pretty useless if you are using a table layout panel. Can I grab the dimensions from the cell I am in or something?
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