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Jul 18th, 2009
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C# Find and Relate to Runtime Textbox

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Hi. I'm new to c# and have ran into a problem, I am using the following code to generate textboxes within a panel.
C# Syntax (Toggle Plain Text)
  1. private void button1_Click(object sender, EventArgs e)
  2.         {
  3.             AddFields();
  4.         }
  5.  
  6.         private void AddFields()
  7.         {
  8.             if (textBoxIndex != 10)
  9.             {
  10.                 TextBox field = new TextBox();
  11.                 field.Name = "field" + textBoxIndex.ToString();
  12.                 textBoxIndex++;
  13.                 field.Size = new Size(200, 20);
  14.                 panel1.Controls.Add(field);
  15.             }
  16.             else
  17.             {
  18.                 MessageBox.Show("A Maximum of 10 Areas is Supported");
  19.             }
This also caps the textboxes to a maximum of 10, this code works fine for me it is the next bit that I am stuck on. I need to store values entered into each one of the textbox into diffrent variables which I can't do correctly, I am using the following code to find the textbox control.
C# Syntax (Toggle Plain Text)
  1.                    if (textBoxIndex != 1)
  2.                {
  3.  
  4.                }
  5.                else
  6.                {
  7.                    Control[] ctrls = Controls.Find("field1", false);
  8.                    for (int i = 0; i < ctrls.Length; i++)
  9.                    {
  10.                        TextBox field1 = (TextBox)ctrls[0];
  11.                        field1.Text = Variable1;
  12.                        field1.Text = "";
  13.                    }
  14.  
  15.                }

I think this is were I have gone wrong and I need help please.
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wingers1290 is offline Offline
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Jul 18th, 2009
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Re: C# Find and Relate to Runtime Textbox

I think you have to look in the Controls collection of panel1, now you are looking in the Controls collection of the form.
So instead of Controls.Find use panel1.Controls.Find
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ddanbe is offline Offline
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Re: C# Find and Relate to Runtime Textbox

Thanks, it now looks like this.
C# Syntax (Toggle Plain Text)
  1.  private void FieldStore()
  2.            {
  3.                if (textBoxIndex != 1)
  4.                {
  5.  
  6.                }
  7.                else
  8.                {
  9.                    Control[] ctrls = panel1.Controls.Find("field1", false);
  10.                    for (int i = 0; i < ctrls.Length; i++)
  11.                    {
  12.                        TextBox field1 = (TextBox)ctrls[0];
  13.                        field1.Text = Area.Room1;
  14.                        field1.Text = "";
  15.                    }
  16.                }
  17.  
  18.            }

do my if statements look ok, I wasn't sure whether to go != or == I think what I've got is wrong because it's still not working with panel1.Controls.Find.
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Re: C# Find and Relate to Runtime Textbox

You don't have to define an array of controls here. You have them ready in your panel1 Controls collection.
Perhaps you should use something like this (I have not tested it, I leave that to you)
c# Syntax (Toggle Plain Text)
  1. string Tboxname = string.Empty();
  2.             for (int i = 0; i < Numberoftextboxes; i++)
  3.             {
  4.                 Tboxname = "field" + i.ToString();
  5.                 TextBox field1 = panel1.Controls.Find(Tboxname, false);
  6.                 field1.Text = Area.Room1;
  7.                 field1.Text = "";
  8.             }
Also the last two statements look wierd. You assign a value to Text and then you make Text empty...
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ddanbe is offline Offline
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Re: C# Find and Relate to Runtime Textbox

No, sorry but whatever i do to that It dosent work, i might add that i'm fairly new to c#...
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Re: C# Find and Relate to Runtime Textbox

C# Syntax (Toggle Plain Text)
  1. foreach(Control c in Panel1.Controls)
  2. {
  3. if(c is TextBox)
  4. MessageBox.Show(string.Format("TextBox Name: {0} , TextBox Text {1}",c.Name, c.Text));
  5. }
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Ramy Mahrous is offline Offline
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Re: C# Find and Relate to Runtime Textbox

Why make it difficult when it is so easy!
Thanks for the clarification Ramy
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Re: C# Find and Relate to Runtime Textbox

You're welcome my friend, Danny
I Hope it solves their problem.
Last edited by Ramy Mahrous; Jul 18th, 2009 at 8:01 am.
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Re: C# Find and Relate to Runtime Textbox

Thanks thats brilliant but it dosent solve my original problem, is their a way to get it specific to one textbox only?
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Re: C# Find and Relate to Runtime Textbox

If you know anything about it. Its Text or its Name you can add a condition
C# Syntax (Toggle Plain Text)
  1. foreach(Control c in Panel1.Controls)
  2. {
  3. if(c is TextBox)
  4. if(c.Name = "field1") //or any property c.Text = "" or c.....
  5. MessageBox.Show(string.Format("TextBox Name: {0} , TextBox Text {1}",c.Name, c.Text));
  6. }
Last edited by Ramy Mahrous; Jul 18th, 2009 at 8:33 am.
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