C# if comobox1 is less then 2 combobox 2 say Fail

Question

I have 2 combobox if CB1 is < 2 CB say Fail. This is what I have so far.

private void cb_score_SelectedIndexChanged(object sender, EventArgs e)
        {

            if (cb_score.SelectedItem == "2")
            {
                cb_pass_fail.Text = "Fail";
            }     

Answer 1

Hi Booney-3048,
First convert the value of combobox1 to int type via Int32.TryParse method and then compare with 2.
Please refer to the following code:

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)  
{  
    int value;  
    if (Int32.TryParse(comboBox1.Text, out value))  
    {  
  
        if (value < 2)  
        {  
  
            comboBox2.Text = "Fail";  
        }  
        else  
        {  
            comboBox2.Text = "";  
        }  
    }  
    else   
    {  
        comboBox2.Text = "";  
    }  
}  

Best Regards,
Daniel Zhang

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