If Textview is null or empty....

DimChris · July 2016

Hi team! I'm beginner in xamarin's projects. So please be patient with me. Ι want to check if textview is null or empty.I'm using this code but it doesnt work.

        TextView textview2 = FindViewById<TextView>(Resource.Id.textView2);
        TextView textview1 = FindViewById<TextView>(Resource.Id.textView1);
        if (textview1 != null)
        {
            textview2.Text = "123";
        }
        else
        {

        }

RobertBruce · July 2016

Either of these will work...

    if (textview1.Text == "" || textview1.Text == null) {
        textview2.Text = "123";
    }
    else {

    }

    if (string.IsNullOrEmpty(textview1.Text)) {
        textview2.Text = "123";
    }
    else {

    }

Cheers!

sirvash · July 2016

try this:

      //empty              null               
  if (textview1.text ="" || textview1.text == null)
        {
          textview2.Text = "123";
        }
        else
        {

        }

DimChris · July 2016

Operator '||' cannot be applied to operands of type 'string' and 'bool' App1

RobertBruce · July 2016

Either of these will work...

    if (textview1.Text == "" || textview1.Text == null) {
        textview2.Text = "123";
    }
    else {

    }

    if (string.IsNullOrEmpty(textview1.Text)) {
        textview2.Text = "123";
    }
    else {

    }

Cheers!

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