Clear text inside label

[Briareos7]

Hello everyone,

 

So i'm a student in the IT branch and i'm running into some problems with visual studio, i would like to empty a label text when there is text in it.

 

Example: i have a checkbox is checked it say's needs: this but when i uncheck it the label wouldn't clear text inside the label so this stays in the label.

 

This is my code:

        private void selectie_Load(object sender, EventArgs e)
        {
            lblEisen.Text = "";
            lblOpleiding.Text = "";

        }

        private void chbNiveau2_CheckedChanged(object sender, EventArgs e)
        {
            if (chbNiveau2.Checked == true)
            {
                lblEisen.Text = "Minimaal BBL diploma.";
                lblOpleiding.Text = "Maakt niet uit.";
                chbNiveau3.Checked = false;
                chbNiveau4.Checked = false;

            }else
            {
                lblEisen.Text = ToString();
                lblOpleiding.Text = ToString();
            }
            

        }

        private void chbNiveau3_CheckedChanged(object sender, EventArgs e)
        {
            if (chbNiveau3.Checked == true)
            {
                lblEisen.Text = "Minimaal KBL diploma.";
                lblOpleiding.Text = "Maakt niet uit of ICT Niveau 2 behaald.";
                chbNiveau2.Checked = false;
                chbNiveau4.Checked = false;
            }else
            {
                lblEisen.Text = ToString();
                lblOpleiding.Text = ToString();

            }

        private void chbNiveau4_CheckedChanged(object sender, EventArgs e)
        {
            if (chbNiveau4.Checked == true)
            {
                lblEisen.Text = "Minimaal KBL of TL diploma.";
                lblOpleiding.Text = " Metaal en Elektro of ICT Niveau 3 behaald.";
                chbNiveau2.Checked = false;
                chbNiveau3.Checked = false;
            }else
            {
                lblEisen.Text = ToString();
                lblOpleiding.Text = ToString();
            }

Could u guys see what i'm doing wrong.

 

Sorry for the bad coding i just started with C# but i want to get the hang of it.

[madknight3]

You can clear it by setting it to the empty string. Here's a few different ways to write it but it all basically does the same thing.

Textbox1.Text = "";
Textbox2.Text = string.Empty;
Textbox3.Text = String.Empty;

 

[Briareos7]

5 minutes ago, madknight3 said:

You can clear it by setting it to the empty string. Here's a few different ways to write it but it all basically does the same thing.

Textbox1.Text = "";
Textbox2.Text = string.Empty;
Textbox3.Text = String.Empty;

 

And must i place it inside the private void chechbox?

[madknight3]

40 minutes ago, Briareos7 said:

And must i place it inside the private void chechbox?

Yes, you want to replace this

lblEisen.Text = ToString();
lblOpleiding.Text = ToString();

With one of the options I mentioned. Example

lblEisen.Text = "";
lblOpleiding.Text = "";

Using ToString() like you are isn't correct. It needs to be called on an object.

[Briareos7]

i've tried that but the text still won't go away when unchecked

 

this is how my code looks like now:

        private void selectie_Load(object sender, EventArgs e)
        {
            lblEisen.Text = "";
            lblOpleiding.Text = "";

        }

        private void chbNiveau2_CheckedChanged(object sender, EventArgs e)
        {
            if (chbNiveau2.Checked == true)
            {
                lblEisen.Text = "Minimaal BBL diploma.";
                lblOpleiding.Text = "Maakt niet uit.";
                chbNiveau3.Checked = false;
                chbNiveau4.Checked = false;

            }else
            {
                lblEisen.Text = "";
                lblOpleiding.Text = "";
            }
            

        }

        private void chbNiveau3_CheckedChanged(object sender, EventArgs e)
        {
            if (chbNiveau3.Checked == true)
            {
                lblEisen.Text = "Minimaal KBL diploma.";
                lblOpleiding.Text = "Maakt niet uit of ICT Niveau 2 behaald.";
                chbNiveau2.Checked = false;
                chbNiveau4.Checked = false;
            }else
            {
                lblEisen.Text = "";
                lblOpleiding.Text = "";

            }

        private void chbNiveau4_CheckedChanged(object sender, EventArgs e)
        {
            if (chbNiveau4.Checked == true)
            {
                lblEisen.Text = "Minimaal KBL of TL diploma.";
                lblOpleiding.Text = " Metaal en Elektro of ICT Niveau 3 behaald.";
                chbNiveau2.Checked = false;
                chbNiveau3.Checked = false;
            }else
            {
                lblEisen.Text = "";
                lblOpleiding.Text = "";
            }

        private void lblEisen_Click(object sender, EventArgs e)
        {

        }

 

[madknight3]

7 minutes ago, Briareos7 said:

i've tried that but the text still won't go away when unchecked

If you set a breakpoint in your method and step through, does it reach the code that clears the text boxes?

[Mr. E]

If you want to change your label's text use .content

 

label1.content= "";