CODEWITHSUNDEEP
c#
Lan
Lan

Reputation: 1

How to enable the disabled button when the textbox is already filled with data

private void UserForm_Load(object sender, EventArgs e)
{
    if (txtUsername.Text != "" || txtPassword.Text != "" || txtID.Text != "" || txtFirstName.Text != "" || txtMiddleName.Text != "" || txtLastName.Text != "" || txtDep.Text != "")
    {
        btnNext.Enabled = true;
    }

    else
    {
        btnNext.Enabled = false;
    }
}

I was trying to make a form where the button is disabled and once the textboxes filled up with data, the button will be enabled.

The problem is, the button is disabled even the textboxes is already filled with data.

Upvotes: 0

Views: 84

Answers (2)

Brien Foss
Brien Foss

Reputation: 3367

That's because you are not checking if you should enable the button OnChange of the text field each time. You are checking only on UserForm_Load(object sender, EventArgs e)

This is what you need:

private void textBox__TextChanged(object sender, EventArgs e)
{
    if (txtUsername.Text != "" || txtPassword.Text != "" || txtID.Text != "" || txtFirstName.Text != "" || txtMiddleName.Text != "" || txtLastName.Text != "" || txtDep.Text != "")
    {
        btnNext.Enabled = true;
    }

    else
    {
        btnNext.Enabled = false;
    }
}

Upvotes: 0

Ehsan Sajjad
Ehsan Sajjad

Reputation: 62498

That is happening because you might be populating the control later and checking the text boxes first in the code.

The code to enable and disable the controls should be called after the controls get populated with the values. So, you just need to call your code at right time.

Upvotes: 1

Related Questions