how can i acces a control from another form

how can i acces a control from another form

• Canalside Studios

  Hi

  You can do like this:

  (Application.OpenForms["frmMain"] as frmMain).CurBrowser.Navigate(MyTextBox.Text);

  and you must change your CurBrowser property 'Modifiers' to public.

  Yours

  Markku

  
  

• zaabdullah

  Markku, thank you, but it is not what I am looking for. My code that I posted is a part of a function which is called when I press a button on my form.

  On top of that the function is a part of a different class, not Form1, but it is still in the same namespace.

  I do not think your code can be used in my situation Can it

  
  
  

• Cest la vie

  thx,

  (Application.OpenForms["frmMain"] as frmMain).CurBrowser.Navigate(MyTextBox.Text);

  it just did :D
  

  
  
  

• MrJP

  Hi,
  you can provide a property to access the control, e.g.:
  
  class Form1
  {
  public TextBox MyTextBox
  {
  get { return myTextBox; }
  }
  }
  
  in the other form:
  
  form1.MyTextBox.Text = "New Text";
  
  
  

• Landon Parks

  Hi

  The OOP style way is make new property in form1 like this:

  public string SomeText

  {

  get {return textBox1.Text;}

  set {textBox1.Text = value;}

  }

  Now, if you make any change on form1 (rename textBox1, change it to label ect.) you don't need changed other forms.

  Yours

  Markku

  
  

• Vinit Tyagi

  n0n4m3 wrote:

  Hi, you can provide a property to access the control, e.g.: class Form1 { public TextBox MyTextBox { get { return myTextBox; } } } in the other form: form1.MyTextBox.Text = "New Text";

  It is almost what I've been looking for as well. My problem is somewhat more complicated, however.

  I generate a Tabpage at runtime and want to access (reference) all or some objects on this page. There is a candlePlot and a grid. They are all separate classes. The code I have is like this:

  TabPage tb1 = new TabPage ();
  Button btn = new Button ();
  CandlePlot cp = new CandlePlot ();
  cp.DataSource = dt; // I need to reference this to be able to change the plot at runtime
  this.costPS = new NPlot.Windows.PlotSurface2D ( );
  this.costPS.Add ( new Grid ( ) );
  this.costPS.Add ( cp );
  tb1.Controls.Add ( this.costPS );

  My goal is to try to change the DataTable at the DataSource at runtime when I need to change the plot. How can I access the CandlePlot object with possibly using your construct: {get return cp;} or something like this I've tried to play with my code after I read your post but so far--no luck.

  I won't mind to access the button btn either.

  One way I've tried to approach the problem yesterday was to try to enumerate all TabControl's pages, find the TabPage I need and check their child objects. So far I haven't gotten anywhere.

  I will appreciate any help.

  Thanks.

  
  
  

• ChrisMakesMovies

  hmmm i didn't quite understand that

  let me tell exactly what my problem is

  in frmMain i have a browser named CurBrowser;

  and i want CurBrowser to navegate to a specific URL (from the textbox in frmOpen)

  and isn't there anything like calling the control in frmMain from frmOpen to be easyer something like this:

  frmOpen

  __________________________________________

  private void button1_Click(object sender, EventArgs e)

  {

  frmMain.CurBrowser.Navigate(MyTextbox.Text);

  }

  ______________________________________________________

  
  
  

• hrubesh

  Something like this

  public Form1 : Form

  {

  Button btn = new Button();

  CandlePlot cp = new CandlePlot();

  public Form1()

  {

  TabPage tb1 = new TabPage();

  cp.DataSource = ...

  }

  public Button myButton

  {

  get { return btn; }

  }

  public CandlePlot myCandlePlot

  {

  get { return cp; }

  }

  }

  Yours

  Markku

  
  

• JPC16

  Hi Alex

  OK. Then you can do so that you give name those components and then use Components collection to find them.

  Like this:

  TabPage tb1 = new TabPage();

  tb1.Name = "tabPageName";

  CandlePlot cp = new CandlePlot();

  cp.Name = "candlePlotName";

  and then on the other form you can find the button

  TabControl tc = (Application.OpenForms["yourFormName"] as yourFormType).Controls["tabControlName"] as TabControl;

  CandlePlot cp = (tc.Controls["tabPageName"] as TabPage).Controls["candlePlotName"] as CandlePlot;

  I hope this help you.

  Yours

  Markku

  
  
• how can i acces a control from another form