I am trying to hide a progress bar until a button is clicked. Once the button is clicked I would like the progress bar to show. How would I do that? I am new to C#.
1- In the form view, on your progress bar properties, make sure that the "Visible" property is set to false.
2- Create a click event for the button (you can double click it in the form view, it will generate the event).
3- In the click event function, set your progress bar visibility to true. (YourProgressBarID.Visible = true) and you might want to hide that button, you could use YourButtonID.Visible = false
During the initialization of your form, set the visibility of your ProgressBar to false or set it in from the Designer Properties.
public Form1()
{
InitializeComponent();
progressBar1.Visible = false;
}
Now, on your button click event just make the visibility of your ProgressBar to true.
private void button1_Click(object sender, EventArgs e)
{
progressBar1.Visible = true;
}
Related
I have created a UserControl called Toggle, this is my code for it
[DefaultEvent("Click")]
public partial class Toggle : UserControl {
public bool ToggleStatus { get { return toggleStatus; } }
private bool toggleStatus { get; set; }
public Toggle() {
InitializeComponent();
toggleStatus = true;
}
private void toggleClick(object sender, EventArgs e) {
if (toggleStatus) { // currently set as "true" or "on"
this.lblSwitch.Dock = DockStyle.Right;
this.pnlBackground.BackColor = System.Drawing.Color.Red;
toggleStatus = false;
} else { // currently set as "false" or "off"
this.lblSwitch.Dock = DockStyle.Left;
this.pnlBackground.BackColor = System.Drawing.Color.Green;
toggleStatus = true;
}
}
}
The toggleClick method is tied to the click event of controls within the UserControl; this fires off just fine.
However, when I put my Toggle control on a form and attempt to tie an event to the click of it, it won't fire off.
private void toggleSoundClick(object sender, EventArgs e) {
soundToggle = !soundToggle;
}
I've made sure that the proper method is tied to the click event in my Designer.cs file of both my UserControl and my form
UserControl:
this.lblSwitch.Click += new System.EventHandler(this.toggleClick);
this.pnlBackground.Click += new System.EventHandler(this.toggleClick);
(I have it tied to two controls on my Toggle since I want it to fire no matter where you click on the control)
Form:
this.tglSound.Click += new System.EventHandler(this.toggleSoundClick);
The expected behavior for the UserControl is to fire off toggleClick (which it does) then the form should fire off toggleSoundClick (which it doesn't). I have seen this behavior work fine for other UserControls I have designed and used in this same project.
To clarify:
I have a UserControl called ServerDisplay. I have a method tied to the click event of the background panel of ServerDisplay (in the code for ServerDisplay) that shows a random MessageBox:
private void ServerDisplay_Click(object sender, EventArgs e) {
MessageBox.Show("test");
}
Then, I have a ServerDisplay control contained within my form. I have a method tied to the click event of it as well (in the code for my form)
private void serverDisplayClick(object sender, EventArgs e) {
if (loaded) {
ServerDisplay display = (ServerDisplay)sender;
this.lblLastServer.Text = "Last server joined was " + display.Server.Name + " at " + DateTime.Now.ToString("h:mm tt");
centerControl(this.lblLastServer);
}
}
When I click on the ServerDisplay control in my form, it shows the MessageBox (code from within ServerDisplay), then updates the label I specified in the code (code from form). This is the intended behavior, but it is not working for my other UserControl.
I finally figured it out! The way I had the control set up, I had the control itself, a panel filling up the entire background (I used this for the color), and then another panel inside the first panel to act as the "switch".
When I got rid of the first panel and just used the background of the control for the color and a small panel for the switch, it works when I click the background, but not when I click the "switch" panel. I guess this opens up more questions that I'll have to ask separately from this one, but at least I got my answer.
I am using “Microsoft Visual Studio 2010” and C# language. My user interface look like this(before user click the Advance button):
If user click Advance button, I want it to show the rest of the window as shown in the picture bellow:
Can you please tell me how can have all these information hidden till the user click the Advance button? How can I have a smaller window first, as shown in the first figure. And when the user press the advance button, it will expand and show the rest.
If you can show me with details, I would really appreciate it
All WinForms controls, including the Form itself, have an AutoSize property. When set to true, it causes the control to automatically resize itself to fit its contents.
Therefore, you should place your "advanced" controls into a UserControl and add that UserControl to your form (or you can use a Panel if you're lazy). Then, when the "Advanced" button is clicked, toggle the visibility of your UserControl. The form should automatically adjust its size accordingly.
Alternatively, you could add SplitContainer to your form, which has the ability to collapse one of its two panels. The "Advanced" button would then toggle the state of the Panel2Collapsed property to expand/collapse the bottom panel.
Note: Grammatically, the caption of that button should be "Advanced", not "Advance". For an improved user experience, I recommend adding some kind of indicator that the button expands the available information on the window, rather than submitting it or opening a second window. Most "expander" buttons accomplish this using a downward-facing arrow, e.g.
You could use an image for this, or a Unicode glyph. For example, ▼, the black down-pointing triangle. Change it to an upward-pointing triangle when the panel is expanded.
1.Add a panel to bottom of your form and add all the controls that you need to display in the advanced button click.
2.change the following properties of both the panel and your form,
> AutoSize >> true
> AutoSizeMode >> GrowAndShrink
3.then in form load event you can use like following
private void Form1_Load(object sender, EventArgs e)
{
panel1.Visible = false;
}
4. then in advanced button click event
private void button1_Click_1(object sender, EventArgs e)
{
//panel1.Visible = true;
string value1 = button1.Text;
switch(value1)
{
case "Expand":
panel1.Visible = true;
break;
case "Reduce":
panel1.Visible = false;
break;
}
button1.Text = "Reduce";
if(panel1.Visible==true)
{
button1.Text = "Reduce";
}
else if(panel1.Visible==false)
{
button1.Text = "Expand";
}
}
At first set the following properties visible false
like all lebels and text boxs. then in the click event of the advanced button set all properties visible true.
OnLoad event of your first form set every control or groupbox (whichever you are using) visibility as false.
And on advance buttonclick event make its visibility true.
Code as follows:
private void FirstForm_Load(object sender, EventArgs e)
{
controlName.Visible=false;
}
private void btnAdvance_Click(object sender, EventArgs e)
{
controlName.Visible=true;
}
MSDN For Visibility Property:
http://msdn.microsoft.com/en-IN/library/system.windows.uielement.visibility.aspx
Hope its helpful.
you can simply do it like this,
1.Add a panel to bottom of your form and add all the controls that
you need to display in the advanced button click.
2.change the following properties of both the panel and your form,
> AutoSize >> true
> AutoSizeMode >> GrowAndShrink
3.then in form load event you can use like following
private void Form1_Load(object sender, EventArgs e)
{
panel1.Visible = false;
}
4. then in advanced button click event
private void button1_Click_1(object sender, EventArgs e)
{
panel1.Visible = true;
}
Hope this will help you and any other need this in future...!
I have a comboxbox (okay, in real a have a ToolStripComboBox) where I want a cancleable event that is triggered under certain conditions:
Focus lost
Focus gained
Item selected from the box
pressing Enter
so a "normal" validation event, but when I do the following
this.speedSelector.Validating
+= new System.ComponentModel.CancelEventHandler(this.speedSelector_Validating);
This event is only triggered, when I try to close the application via [X]. Also I can't leave the application when a not valid text is present, that works, but how to trigger that event on my conditions above?
Regards,
You will probably need to store the initial value somewhere (like maybe in the Control's universal Tag field).
You could validate the control on any of the events: SelectedIndexChanged, SelectionChanged, TextUpdate, etc.
The value stored in the control should not change when the control gains or loses focus.
public Form1() {
InitializeComponent();
speedSelector.Tag = speedSelector.Text;
speedSelector.SelectedIndexChanged += new System.EventHandler(this.speedSelector_Changed);
speedSelector.SelectionChangeCommitted += new System.EventHandler(this.speedSelector_Changed);
speedSelector.TextUpdate += new System.EventHandler(this.speedSelector_Changed);
}
private void speedSelector_Changed(object sender, EventArgs e) {
if (validData(speedSelector.Text)) {
speedSelector.Tag = speedSelector.Text;
} else {
speedSelector.Text = speedSelector.Tag.ToString();
}
}
private static bool validData(string value) {
bool result = false;
// do your test here
return result;
}
Validating will be called when moving focus from a control on the dialog that has the CausesValidation property set to true to another control that has the CausesValidation property set to true, e.g. from a TextBox control to the OK button. Maybe your validation happens when you close the window because you have CausesValidation set on the window, and not on the appropriate controls?
You could also just move all the validation into an OnBlur event for your control and do it that way.
I am learning windows forms and can create a one form with textboxes and stuff, but I was wondering how can I change the form upon let's say clicking a button?, so for instance my initial form has a textbox and a button, if the button is clicked I want to show a form with a dropdown and a button. SO the question should be:
1) How do I change the form upon clicking a button but without creating a new instance of the form.
2) If I wanted, how can I add a form when the button is clicked showing the same drop down and button as a pop up form?
In reality I would like to know both cases, changing the form via using the same form and via popping a new form on top.
Should the questions not be clear, I am willing to further explain
Thank you
I'm assuming you already know how to add controls in the form designer and how to implement event handlers.
Question 1
private void button1_Click(object sender, EventArgs e)
{
if (comboBox1.Visible)
{
comboBox1.Visible = false;
textBox1.Visible = true;
}
else
{
comboBox1.Visible = true;
textBox1.Visible = false;
}
}
The button click handler simply toggles the visibility of the two controls.
Question 2
private void button2_Click(object sender, EventArgs e)
{
Form1 form = new Form1();
form.ShowDialog();
}
This time the button handler instantiates a new form an then shows it as a modal dialog. Call Show() if you don't want to show modally.
Since TabStop does not work on RadioButtons (see linked question), how can I prevent a (WinForm) RadioButton from being tabbed into, but also allow the user to click on the RadioButton, without the tab focus jumping somewhere else.
I've read this and so I thought the following would work:
rbFMV.Enter += (s, e) => focusFirstWorkflowButton();
rbFMV.MouseUp += (s, e) => rbFMV.Focus();
But it doesn't. When I click on the RB, the focus jumps away, and does not come back on Mouse Up.
Any dirty workarounds out there?
Try something like this:
Set TabStop property of the radiobuttons to "false" in the form's constructor. Then attach the following events handlers to the CheckedChanged events of the radiobuttons.
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
radioButton1.TabStop = false;
radioButton2.TabStop = false;
}
private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
radioButton1.TabStop = false;
radioButton2.TabStop = false;
}
private void radioButton2_CheckedChanged(object sender, EventArgs e)
{
radioButton1.TabStop = false;
radioButton2.TabStop = false;
}
}
You can attach these event handlers using lambda aswell, as you have shown in your question.
But the important point here is that whenever a radiobutton is checked/unchecked, it's tabstop property is also modified simultaneously. Hence you need to set it to false everytime that event occurs.
The underlying Win32 RadioButton does not automatically change the TabStop property. However, if you use .NET Reflector you can see that the .NET control runs code to update the TabStop property whenever OnEnter method is called because focus has entered the control or whenever the AutoCheck or Checked properties are modified.
Luckily there is a simple solution to your problem. Just derive a new class that overrides the OnTabStopChanged method and automatically set it back to false again. Here is the impl...
public class NonTabStopRadioButton : RadioButton
{
protected override void OnTabStopChanged(EventArgs e)
{
base.OnTabStopChanged(e);
if (TabStop)
TabStop = false;
}
}
Then always use the NonTabStopRadioButton in your application instead of the standard one.
only one control can have input focus at the time i think, so when they click the radio button it will get focus..
But what if you do something like this?
rbFMV.GotFocus += (s, e) => someothercontrol.Focus();
also, have you looked at the TabStop property?
-edit-
i see you have, sorry, missed that :/