TextBox MaxLength issue - BEGINNER

Question

This is a C# windows form based application, i am using VS2008.

I have a textbox, and i enabled MultiLine to true. Now i need this textbox to include a maximum of 100 characters. So i set the MaxLength property to 100. But yet i am able to enter more than 100 characters. What should i do ?

 

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I tried this again, and it works.

But, according to my scenario it doesn't. 

I have a form, and a text box and a button on it. When i click the button, a character is printed on the textbox. (Like the calculator, you click a button, and the digit gets printed on the textbox).

I need to restrict the number of characters in the textbox to 100. and i am not clicking the textbox, and entering values via the keyboard. I will be entering values by clicking the button.

(sorry i didn't think this part was relevent)

Answer 1

Hello LocalP,

 

this code works:

this.textBox1.MaxLength = 5;
this.textBox1.Multiline = true;

Maybe you modify different textBox control.

 

Regards

Adam

Answer 2

I reproduced same thing in my code and I am NOT able to write more than 100 once I set the MaxLength is 100. Most probably you might have set the Maxlength property to different text box instead of the one you wanted to set. (By default the maxlength is 32767

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Dreaming a world without any war in anywhere

Answer 3

I tried this again, and it works.

But, according to my scenario it doesn't. 

I have a form, and a text box and a button on it. When i click the button, a character is printed on the textbox. (Like the calculator, you click a button, and the digit gets printed on the textbox).

I need to restrict the number of characters in the textbox to 100. and i am not clicking the textbox, and entering values via the keyboard. I will be entering values by clicking the button.

(sorry i didn't think this part was relevent)

 

 

Answer 4

What about trying something else:

    int textLimit;
    public Form1()
    {
      InitializeComponent();
      textBox1.MaxLength = 10;
      textLimit = textBox1.MaxLength;
    }

    private void button1_Click(object sender, EventArgs e)
    {
      string text = "This is too long text.";
      if (text.Length < textLimit)
        textBox1.Text = text;
      else
        MessageBox.Show("The text you want to insert into textbox1 is to long.");
    }

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Mitja

Answer 5

Changed to code a bit (in upper post). Now it correct.

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Mitja