Hi,

I have the following get and set for displaying a date on my webpage. It’s a null value

However, when I go to load the page I get an error on the set part saying the “Nullable object must have a value.”

Can anyone see where I’m going wrong and how to fix this.

Thank you very much

    public DateTime? Date
        {
            get
            {
                if (txtDate.Text != "")
                {
                    return Convert.ToDateTime(txtDate.Text);
                }
                return null;
            }

            set{ txtDate.Text = value.Value.ToShortDateString(); }               
            
        }

Is the property getting called when the page is being loaded? 

Hi,

Yeah it is. I have a method in the page-load which loads it.

Any suggestions what’s going wrong?

Thanks

Can you show us the code, please? 

protected void ButtonClickEvent(object sender, EventArgs e)
    {
        Button btn = (Button)sender;
        if (btn.ID == this.btnClickMe.ID)
            MyDateTime = DateTime.Now;
        else
            this.txtDate.Text = MyDateTime.Value.ToString();
        
    }

    public DateTime? MyDateTime 
    {
        get
        {
             if (txtDate.Text != "")  
             {  
                 return Convert.ToDateTime(txtDate.Text);  
             }  
            return null;
        }
        set
        {
            this.txtDate.Text = value.Value.ToShortDateString();
        }
    }

Hi I did try this code snippet and it runs ok.

would you mind provide some more details of your error.

I suspect that you are trying to set the value of Date to null during the page load.  The code in the setter is assuming that Date is being set to a non-null value.  Try changing it to

set {
    if (value.HasValue) {
        txtDate.Text = value.Value.ToShortDateString();
    } else {
        txtDate.Text = string.Empty;
    }
}

Genius, thank you