I want to update a label from Form2. When I click on the button on Form 2, the textbox on Form2 should update the label on Form1 and take me to a certain website. What ever URL is typed into the textbox on Form2 is what website URL the label on Form1 will take me to. The label on Form1 can say something such as You can check out my website here!!! and when they click on the saying it takes me to their website.
View 2 RepliesI have a program which when a button is clicked on Form1 it runs a vision system operation on an image in a window on a Form1. There are also other buttons on the Form1 which can change things like threshold levels so the inspection can be run again with different settings. It all works fine but I want to change it to remove the buttons from Form1 so that when the user clicks on a button on Form1 it opens up another form, Form2, and all the buttons which were on Form1 are now on Form2 and the image analysis should run on Form1 when the buttons are used on Form2. I have taken over all the code from Form1 to Form2 and I'm trying to make this happen by creating a new oject on Form1 which calls a method on Form2 which contains the code which was in Form1 and called when the button was clicked on Form1 - not working!! I have a constructor in Form2 but I think I have become monumentally confused.
This was the code which was on Form1 when the inspection button was clicked.
private void cmdInspectOnce_Click(object sender, EventArgs e)
{
iReturn = VisionSystem.InvModeSet(IpeEngCtrlLib.I_MODE.I_EXE_MODE_ONCE);
if (_imgEngines!=null && _imgEngines[0]!=null)
_imgEngines[0].cmdInspectOnce();//InvModeSet(IpeEngCtrlLib.I_MODE.I_EXE_MODE_ONCE);
}
I have a non form class. I want to update label/ check status of check box etc.. in non form class ( here resides functions that contains logic). How can i do that ?
View 4 Replies View RelatedI hav created mdi parent form that contain one user control. I want to access that user control from one of the child form
View 4 Replies View RelatedThis is more of a Application Design question, Let's say I have Form1(Login), this is opened from Program.cs, when the user enters details, the Event Handler makes a instance of a class, adds the data and stores the instance within Program.cs class.
So the best thing to do here, is to close the Form1(Login) and open Form2(Main) via Program.cs so that I can send the List<Login> object with my Login instance objects to said form. This form will remain open throughout the applications use as it's like the main GUI for all the programs functions.
When I close this form, I may want to save some information before the application is terminated, so I may as well store the Login instances in Program.cs anyway.
Main stepping stone: Multiple (usually around 3 max) users can login this system if need be, which will mean closing Form2(Main) and then opening Form1(Login) so that once Form1 is closed it can recreate the From2(Main) form and pass the new List<Login> to that form.
What's the best way to do this, at the moment i'm creating the Form2 instance like so:
//....
//Detect the Login form being closed
loginForm.Closed += new EventHandler(OnLoginClosed);
//...
//Open the main form when the login is closed
private void OnLoginClosed(object sender, EventArgs e)
[Code] .....
This seems like it will work and do the job, but is there a better and cleaner way? The List<Login> will be passed to Forms which are created via Form2(Main) as this information will be needed. It's just that ive been told not to use Forms for too much data containment.
I have a form with 2 text boxes (Email and Password)
The user fills in the text boxes and clicks on the Log in button. The code behind the log in button does the following, First connects to a table (Users) in phpmyadmin. Next runs a SQL query (SELECT * FROM `users` WHERE Email = '" + sEmail + "' AND Password = '" + sPassword + "'") sEmail being the variable created from the text entered in Email text box and the same for password.
Next if the record count == to 1 it opens up the main menu form and if the record count == 0 it fails and the user does not get to the main menu.
All of the above is fine and working however what I want to do is take over a variable from the log in form to the other forms.
The code is below for the sign in button as all my code is behind that (I think this may be where I'm going wrong).
public partial class WelcomeForm : Form{
public static string connStr = "server = localhost; " +
"database = ppw5; " +
"uid = James; " +
"pwd = buster;";
[Code] .....
And the Main menu form where I'd like to take a variable over with me, lets assume the variable is the UserID from the database table that I pull from the dTable I created.
public partial class MenuForm : Form {
//Call the CloseProgram class and create a new method called ClassClose.
CloseProgram ClassClose = new CloseProgram();
WelcomeForm User = new WelcomeForm();
public MenuForm() {
InitializeComponent();
[Code] .....
I have 3 Windows Form: frmMain, frmFirstForm, and frmSecondForm.
frmMain is the form that will load when the application is started with 2 tabs to access frmFirstForm and frmSecondForm.
Here's my problem:
After making a selection from a combobox on frmFirstForm, I would like a datagridview header to change based on the selection made. Here is a list of items on one combobox: Item1, Item2, Item3, Item4. When somebody chooses Item one, the header on the datagridview on frmSecondForm should display: JohnItem1, PaulItem1, BradItem1 and so on. Those items are not part of the comboboxes, but they will be shown as header text on the datagridview on the second form either automatically or after clicking OK from frmMain. There's no OK button on frmFirstForm, but on frmMain.
The only code I have right now is the if statement on the form load on frmSecondForm. Here's what I have:
private void HeaderTextLoad() {
if(comboboxonfirstform.text = "Item1") {
datagridview1.Columns[0].HeaderText = "ItemJohn";
datagridview1.Columns[1].HeaderText = "ItemPaul";
... And so on.
}
}
i need to change the text in multiple ComboBoxs. i could do it one by one, but i have about 11 i need to change. i feel like doing it one at a time is not efficient. i was wondering if i can put the comboboxs into an array so i can use a for loop to change them all with out writeing it out 11 times.
View 9 Replies View RelatedI am creating one c# project. In this project I have one mdi form and many child forms.
All the child forms contains one panel named as panel1.
Now when child form opens i use the following code in all child form all child forms' load event contains the following line.
this.WindowState = FormWindowState.Maximized;
and all child forms' resize event contains the following line.
panel1.Left = (this.ClientSize.Width - panel1.Width) / 2;
panel1.Top = (this.ClientSize.Height - panel1.Height) / 2;
so my question is if possible that the above code i write only once so i donot write this code in all the child forms load and resize event.
I am gonna make a simple game in c++. I need a way how to use a particular key on the keyboard ,when I hit the key certain function should be called.
For movement of cursor on screen I want to connect arrow keys.
I am writing a application that receives Event messages from a network device the problem I have is that the device sends some message 5 times per tiggered event on two of the events I like to use the rest of the messages are fine I need to create code to filter out the other 4 last messages that get displayed in a textbox the 5 message are identical I have added a timestamp to the sting and noted they are always 1 second apart so the format would be somthing like this:
11:23:01 - x - y
11:23:02 - x - y
11:23:03 - x - y
11:23:04 - x - y
11:23:05 - x - y
What I would like to do something like this, always append the first message to the textbox but ignore or even change the 4 messages that follow 1 second apart from each other that contain - x - y if any other message appears it should still append the text box as well
so the result i would like for the 5 event message as above should end like this:
11:23:01 - x - y
11:23:02 - custome message / ingnore append to textbox
11:23:03 - custome message / ingnore append to textbox
11:23:04 - custome message / ingnore append to textbox
11:23:05 - custome message / ingnore append to textbox
I want to create events and then, functions which are subscribed to the event can access information about the event. For example, in Class 2 below, I want it to be able to access things such as touch.position, etc. of class 1.
Class 1:
public delegate void TouchEventHandler (EventArgs e);
public event TouchEventHandler TouchBegan;
public Vector2 touchPosition;
void Update () {
if (Input.touchCount > 0) {
[Code] ...
Class 2:
void OnTouchBegan (EventArgs e) {
Debug.Log ("Ran");
}
I'm still at the very beginning of learning WPF and there are still countless things i don't fully understand. For instance, as I can see in my WPF project, there isn't an event that would fire when the Background property of some control is changed. Or am I just missing it? If i'm not blind after all, and it really doesn't exist, is there any way i could get notified when the Background color of some control is changed?
View 5 Replies View RelatedI'm trying to find an event for the combobox when its selected value changes , but I can't seem to find the right one since I've tried several events in the dataGridView that are just triggering at the wrong moments. I need to remove the selected item from that combobox so that it doesn't get selected again at the second combobox which usually have the same items .
View 5 Replies View Related In my MainWindow I have a UserControl called CamAccessLevel1. This will be one of a few different UserControls which will have more and more functionality to a device as the Level goes up.
Each of those functionalities are themselves a UserControl, so that I don't have to keep remaking them for each different "Level" that I make.
So... I have a UserControl in a UserControl in my Mainwindow. My first goal is to have a button in one of those sections send an event back to the MainWindow to close the application. This sections is called "ProgramControl", as it has functions that relate to the program itself.
I can't seem to set a datacontext within another datacontext -> There is an error in UIViewModel below...
Note that I have replaced my company name with [snip]
In my Mainwindow.xaml
<views:CamAccessLevel1 x:Name="UserInterface"/>
Mainwindow.xaml.cs
public partial class MainWindow : Window {
#region MyModel
[code]....
I need to implement a two-way asynchronous communication between two objects, not using any IPC.
What I have now is a producer-consumer model where producer sends a number "88" to consumer at random intervals. Now, I need consumer to send a number "99" back to producer at a random intervals, this probably should be done in a separate thread.
I am using GNU on Linux, here is the compile line.
Code:
g++ -g -std=c++11 main.cpp -o main
Code:
#include<iostream>
#include<chrono>
#include<thread>
class IObject {
public:
virtual void fromApp(int i) = 0;
virtual int toApp(int& i) = 0;// ???
[code].....
i want to write to event viewer
Code:
void EventLogCls::WriteError( char* msg) {
HANDLE hes = RegisterEventSource(0, appName);
if(hes) {
WORD dwEventType = EVENTLOG_ERROR_TYPE;
ReportEvent(hes, dwEventType, 0, 0, 0, 1, 0,(const char**)&msg , 0);
DeregisterEventSource(hes);
}
}
The error that i get is on the line of "ReportEvent"
error C2664: 'ReportEventW' : cannot convert parameter 8 from 'const char **' to 'LPCWSTR *'
what should be changed?
3 3
2 1 3 2 3
1 0 2
1 2 6
First line shows row and column number
First index of the second line tells the number of non-zero entries of the first row and second index tell the column number where the non zero entry is placed
for 1st row of matrix:
non-zero entries=2
column number=1
non-zero entry=3
column number=2
non-zero entry=2
covert this in the given form
0 3 3
2 0 0
0 0 6
<TreeView Grid.Column="0" Margin="0,-15,0,15" Grid.ColumnSpan="1">
<TreeViewItem Header="Custom"/>
<TreeViewItem Header="All Conferences"/>
<TreeViewItem Header="Atlantic Coast Conference" MouseDoubleClick="TreeViewItem_MouseDoubleClick_1">
<TreeViewItem Header="Atlantic" MouseDoubleClick="TreeViewItem_MouseDoubleClick"/>
<TreeViewItem Header="Coastal"/>
[Code] ....
I am trying to do a LINQ Query by Double Clicking the child node. When I click on the parent node it brings up the correct data. But when I click on the child node it still brings up the data from the parent node. How do I get the child node to display the correct data?
I was using the same item click event on another listview, and it worked perfectly... I don't know why this is happening, but here's my problem:
When I double click on an item, and try to obtain its index in the listview, the items index always comes back as -1... Obviously -1 isn't an index, and I'm guessing that it is returning -1 because that item does not exist on the listview, but from what I'm seeing, it is impossible for the item not to be inside of the listview...
Here is the xaml for my listview:
<ListView x:Name="lstBookmarks" HorizontalAlignment="Left" Height="250" Margin="10,10,0,0" VerticalAlignment="Top" Width="327" ItemsSource="{Binding Bookmarks}">
<ListView.View>
[Code]....
When I uncomment the MessageBox, it shows -1... This is obviously not right lol. I have the same exact click event in another class, and I obtain the items index the same exact way.. The only difference between this listview and that one is that this listview is databound.. Is that the issue? If so, how does one overcome it?
I have a application that has a tab control and I change the font and color on form load.
But now I need to switch the font and color when I user clicks a button event.
I have 8 of these events, each customized to set different tab font and color.
tabControl1_DrawItem
tabControl1_DrawItem2
tabControl1_DrawItem3
I just do not know how to make this happen.
I'm trying to create a program which can pan by keep clicking and move the mouse
1. First, I create a class that inherited from the UserControl Class
public partial class CanvasCtrl : UserControl
protected void OnMiddleMouseDown(object sender, MouseEventArgs e) {
if (e.Button == MouseButtons.Middle) {
[Code] ....
2, Second, I create the void in that class too, and write the code to get it to catch the event
public void MainMouseAction() {
this.MouseClick += new MouseEventHandler(OnMiddleMouseDown);
}
It not work, how to solve this out ?
I have successfully compiled a code where I created an array of buttons. I have added a click event to it like this :
Code:
buttons[indexofhashis2]->Click += gcnew System::EventHandler(this, &Execute::GOBUT_Click);
I have a standard event like this
Code:
private: System::Void GOBUT_Click(System::Object^ sender, System::EventArgs^ e) {
int x;
x = sender->Location.X;
}
Returns error saying Location is not a member of Object^.
I'm trying to create an array of button (user/runtime created buttons) and get different interpretations of the click event depending of wich button is clicked.
For example, if we create buttons[0] I wish to get the 0 or something relevant into the GOBUT_Click event.
Create a line class using a linked list that acts as a queue (first in, first out) both enqueue and dequeue. Complete the line class so that customers can be added or removed from the line. Implement the line as a linked list of customer objects that you have developed yourself or use the vector class.
View 2 Replies View RelatedI have to make a C++ program that implements two tasks synchronized on a external event using mailboxes. The first task, T1, reads integer from keyboard, and record them to a vector. The second task, T2, transforms the integer numbers in binary and shows them. External events that are synchronized tasks is typing an integer.
This is what i made so far.
#include <iostream.h>
#include <conio.h>
int v[50], n, i;long sum;
void citire(){cout<<"dati numarul de elemente al vectorului:";cin>>n;
for(i=1;i<=n;i++){cout<<"introduceti elementele vectorului: ";
[Code] ....
I don't know how to use tasks, and the program doesn't convert from int to bin..
I am creating a sudoku solver/generator. I have 81 text boxes on the form. I want the form to automatically clean up the input, eliminating alpha characters, and values under 1 or over 10. Anyways I have this method written, but I really don't want to go through and type up a change method for each text box. Is there to write a method that fires when ANY text box is changed, and gets the string value from the changed text box?
View 5 Replies View Related