Basic form validation.

Scrummer/Code/Controls/CTextbox.cs

@@ -7,7 +7,7 @@ using System.Web.UI.WebControls;
 
 namespace Scrummer.Code.Controls
 {
-    public class CTextBox: TextBox
+    public class CTextBox : TextBox, IValidableControl
     {
         #region Declarations
 
@@ -46,14 +46,9 @@ namespace Scrummer.Code.Controls
 
         public CTextBox()
         {
-            Init += CTextbox_Init;
             PreRender += CTextbox_PreRender;
         }
 
-        void CTextbox_Init(object sender, EventArgs e)
-        {
-        }
-
         void CTextbox_PreRender(object sender, EventArgs e)
         {
             CssClass = CssClassBase;
@@ -79,11 +74,6 @@ namespace Scrummer.Code.Controls
             }
         }
 
-        public override void RenderEndTag(HtmlTextWriter writer)
-        {
-            base.RenderEndTag(writer);
-        }
-
         #endregion
 
         #region Public methods
@@ -93,6 +83,11 @@ namespace Scrummer.Code.Controls
             return string.IsNullOrEmpty(Text);
         }
 
+        public bool IsValid()
+        {
+            return _allowEmpty || (string.IsNullOrEmpty(Text) == false);
+        }
+
         #endregion
 
     }

Scrummer/Code/Controls/IValidableControl.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Scrummer.Code.Controls
+{
+    public interface IValidableControl
+    {
+        bool IsValid();
+    }
+}

Scrummer/Code/Pages/FormUtils.cs

@@ -35,5 +35,37 @@ namespace Scrummer.Code.Pages
             return pnlRow;
         }
 
+        public static bool Control_IsValid(Control control)
+        {
+            if (control is IValidableControl)
+            {
+                if (((IValidableControl)control).IsValid() == false)
+                {
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        public static bool Controls_AreValid(ControlCollection controls) {
+            bool valid = true;
+            foreach (Control control in controls)
+            {
+                if (Control_IsValid(control))
+                {
+                    if (Controls_AreValid(control.Controls) == false)
+                    {
+                        valid = false;
+                        break;
+                    }
+                }
+                else
+                {
+                    valid = false;
+                    break;
+                }
+            }
+            return valid;
+        }
     }
 }

Scrummer/Scrummer.csproj

@@ -71,6 +71,7 @@
     <Compile Include="Code\Controls\ChatHandler.cs" />
     <Compile Include="Code\Controls\CLabel.cs" />
     <Compile Include="Code\Controls\CTextBox.cs" />
+    <Compile Include="Code\Controls\IValidableControl.cs" />
     <Compile Include="Code\Entities\Message.cs" />
     <Compile Include="Code\GlobalErrorHandler.cs" />
     <Compile Include="Code\JSON\ParserContext.cs" />