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POC# Creating an array of Fields
 

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  1. POC# Creating an array of Fields
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    <p>Hey! I want to create an array of fields. however my code return an error of the following: Field 'WindowsFormsApplication1.Form1.fieldArray' is never assigned to, and will always have its default value null. </p> <p>any suggestion to how I can solve this error?</p> <pre><code>using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO; namespace WindowsFormsApplication1 { public partial class Form1 : Form { private Field[] fieldArray; private Field f; public Form1() { InitializeComponent(); } private void populateTree(string path, TreeNode tv1) { string[] dir = Directory.GetDirectories(path); foreach (string d in dir) { string entry = Path.GetFileName(d); TreeNode t = tv1.Nodes.Add("Folder", entry, 0); populateTree(d, t); } string[] files = Directory.GetFiles(path); foreach (string f in files) { string entry = Path.GetFileName(f); tv1.Nodes.Add(f, entry, 1); } } private void Form1_Load(object sender, EventArgs e) { //populate the tree TreeNode t = treeView1.Nodes.Add("Units"); populateTree(@"..\units\", t); f = new Field(); for (int i = 0; i &lt; 10; i++) { fieldArray[i] = new Field(); } fieldArray[1].label.AutoSize = true; fieldArray[1].label.Location = new System.Drawing.Point(323, 9); fieldArray[1].label.Name = "Programtittle"; fieldArray[1].label.Text = "UAI UnitDef Editor"; this.Controls.Add(fieldArray[1].label); int clabel = 36; //fieldArray[1].varName = new string[] { "unitName", "name", "description" }; //define labels //popluate label for (int i = 1; i &lt; fieldArray[i].varName.Length; i++) { fieldArray[i].label = new Label(); fieldArray[i].label.AutoSize = true; fieldArray[i].label.Location = new System.Drawing.Point(323, clabel); fieldArray[i].label.Name = "label"; this.Controls.Add(fieldArray[i].label); fieldArray[i].label.Text = fieldArray[i].varName[i]; clabel = clabel + 26; } //populate textbox int cbox = 33; for (int i = 0; i &lt; fieldArray[i].varName.Length; i++) { fieldArray[i].txtBox = new TextBox(); fieldArray[i].txtBox.Location = new System.Drawing.Point(380, cbox); fieldArray[i].txtBox.Name = "txtBox"; fieldArray[i].txtBox.Size = new System.Drawing.Size(100, 50); this.Controls.Add(fieldArray[i].txtBox); cbox = cbox + 26; } } private void populateLabelTxtBox(string path) { //f.txtBox.Multiline = true; //added for testing purpose; //read,split file string text = System.IO.File.ReadAllText(path); char[] delimiters = new char[] { '{', '=', ';', '}' }; string[] parts = text.Split(delimiters, StringSplitOptions.RemoveEmptyEntries); for (int i = 0; i &lt; parts.Length; i++) { fieldArray[i].txtBox.Text = parts[i]; } } private void treeView1_NodeMouseDoubleClick(object sender, TreeNodeMouseClickEventArgs e) { if (treeView1.SelectedNode.Name != "Folder") { string text = System.IO.File.ReadAllText(treeView1.SelectedNode.Name); //f.txtBox.Text = text; populateLabelTxtBox(treeView1.SelectedNode.Name); } } } } </code></pre>
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    1. COHey! I tried what you has been suggest! but at fieldArray[0].label = new Label(); it returns an error saying Object reference not set to an instance of an object. any suggestions?
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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