Hi, Got a fun one here.
In the Designer file, I have defined my array of labels like this System.Windows.Forms.Label[] periodlabel = new System.Windows.Forms.Label[10]; then at the bottom private System.Windows.Forms.Label[] periodlabel; The reason for this is that I want to be able to create on the between 1 and 10 labels. The problem is this... My source looks like this public partial class lessonplan : Form { public lessonplan(int noperiods) { float periodSize = 100.0F / (float)noperiods; InitializeComponent(); this.lesson.ColumnCount = noperiods + 1; this.lesson.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 120F)); for (int i = 0; i < noperiods; ++i) { this.lesson.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, periodSize)); this.periodlabel[i].Location = new System.Drawing.Point(127 + (117 * i), 2); this.periodlabel[i].Text = "Lesson " + i.ToString(); this.periodlabel[i].AutoSize = true; this.periodlabel[i].Font = new System.Drawing.Font("Arial", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0))); this.periodlabel[i].Size = new System.Drawing.Size(109, 27); this.periodlabel[i].TabIndex = i + 6; this.lesson.Controls.Add(this.periodlabel[i], 0, i); } } The source compiles fine (well, it tells me that Field 'timetabler.lessonplan.periodlabel is never assigned to, and will always have its default value null, but from what I've read, that's ok) , but when I run the application and click on the button which instantates the lessonplan class (it is passing a value happily, if I remove the periodlabel code, everything works find), I get System.NullReferenceException: Object reference not set to an instance of an object I've tried a number of solutions to this (including putting a periodlabel[i] = new Label(); just before the addition of the periodlabel values but within the braces, trying to create dummy instances in the designer source file and a few other tricks found online - nothing worked). Is there a nice, easy way of doing what I want here? TTFN Paul -- Sie können mich aufreizen und wirklich heiß machen!
signature.asc
Description: This is a digitally signed message part
_______________________________________________ Mono-winforms-list maillist - Mono-winforms-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-winforms-list