improve interface

RS232Test/Form1.Designer.cs

@@ -71,13 +71,16 @@
             // 
             // printText
             // 
+            this.printText.BackColor = System.Drawing.Color.White;
             this.printText.Dock = System.Windows.Forms.DockStyle.Fill;
             this.printText.Location = new System.Drawing.Point(3, 38);
             this.printText.Multiline = true;
             this.printText.Name = "printText";
+            this.printText.ReadOnly = true;
             this.printText.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
             this.printText.Size = new System.Drawing.Size(394, 366);
             this.printText.TabIndex = 2;
+            this.printText.TabStop = false;
             // 
             // commandText
             // 
@@ -85,7 +88,8 @@
             this.commandText.Location = new System.Drawing.Point(3, 3);
             this.commandText.Name = "commandText";
             this.commandText.Size = new System.Drawing.Size(288, 21);
-            this.commandText.TabIndex = 3;
+            this.commandText.TabIndex = 0;
+            this.commandText.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.commandText_KeyPress);
             // 
             // Send
             // 
@@ -93,7 +97,7 @@
             this.Send.Location = new System.Drawing.Point(297, 3);
             this.Send.Name = "Send";
             this.Send.Size = new System.Drawing.Size(94, 23);
-            this.Send.TabIndex = 4;
+            this.Send.TabIndex = 1;
             this.Send.Text = "전송";
             this.Send.UseVisualStyleBackColor = true;
             this.Send.Click += new System.EventHandler(this.Send_Click);

RS232Test/Form1.cs

@@ -211,6 +211,7 @@ TOC: {1} ppb
         private void Send_Click(object sender, EventArgs e)
         {
             string command = commandText.Text + "\r\n";
+
             if (!serialPort.IsOpen)
             {
                 MessageBox.Show("포트가 열려있지 않습니다.");
@@ -220,6 +221,8 @@ TOC: {1} ppb
             Print(string.Format("\t[CMD] {0} {1}", DateTime.Now.ToString("yyyy.MM.dd HH:mm:ss"), commandText.Text));
 
             serialPort.Write(command);
+
+            commandText.Clear();
         }
 
         private void Form1_FormClosing(object sender, FormClosingEventArgs e)
@@ -228,6 +231,14 @@ TOC: {1} ppb
                 serialPort.Close();
         }
 
+        private void commandText_KeyPress(object sender, KeyPressEventArgs e)
+        {
+            if (e.KeyChar != (char)Keys.Enter)
+                return;
+
+            Send_Click(sender, e);
+        }
+
         
     }
 }