WinForm IP地址輸入框控件實(shí)現(xiàn)
更新時(shí)間:2018年05月08日 11:53:37 作者:zf15256888839
這篇文章主要為大家詳細(xì)介紹了WinForm IP地址輸入框控件的實(shí)現(xiàn)代碼,基于VS2010模擬windows系統(tǒng)自帶IP輸入框,具有一定的參考價(jià)值,感興趣的小伙伴們可以參考一下
本文實(shí)例為大家分享了WinForm IP地址輸入框控件的具體實(shí)現(xiàn)代碼,供大家參考,具體內(nèi)容如下
IPInput.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Text.RegularExpressions;
namespace IPInputControl.Ctrl
{
public partial class IPInput : UserControl
{
public IPInput()
{
InitializeComponent();
}
TextBox ParentTxt;
private void IPInput_Load(object sender, EventArgs e)
{
ParentTxt = txt_1;
}
public void txt_KeyDown(object sender, KeyEventArgs e)
{
ParentTxt = (TextBox)sender;
if (e.KeyCode == Keys.Left)
{
switch (ParentTxt.Name.Split('_')[1])
{
case "1":
break;
case "2":
if (ParentTxt.SelectionStart == 0 && ParentTxt.Text != "")
{
if (int.Parse(ParentTxt.Text) > 255)
{
MessageBox.Show(ParentTxt.Text + "不是有效項(xiàng)。請指定一個介于1和255之間的值。", "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Warning);
ParentTxt.Text = "255";
ParentTxt.SelectionStart = 0;
}
else
{
txt_1.Focus();
}
}
else if (ParentTxt.Text == "")
{
txt_1.Focus();
}
break;
case "3":
if (ParentTxt.SelectionStart == 0 && ParentTxt.Text != "")
{
if (int.Parse(ParentTxt.Text) > 255)
{
MessageBox.Show(ParentTxt.Text + "不是有效項(xiàng)。請指定一個介于1和255之間的值。", "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Warning);
ParentTxt.Text = "255";
ParentTxt.SelectionStart = 0;
}
else
{
txt_2.Focus();
}
}
else if (ParentTxt.Text == "")
{
txt_2.Focus();
}
break;
case "4":
if (ParentTxt.SelectionStart == 0 && ParentTxt.Text != "")
{
if (int.Parse(ParentTxt.Text) > 255)
{
MessageBox.Show(ParentTxt.Text + "不是有效項(xiàng)。請指定一個介于1和255之間的值。", "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Warning);
ParentTxt.Text = "255";
ParentTxt.SelectionStart = 0;
}
else
{
txt_3.Focus();
}
}
else if (ParentTxt.Text == "")
{
txt_3.Focus();
}
break;
}
}
else if (e.KeyCode == Keys.Right)
{
switch (ParentTxt.Name.Split('_')[1])
{
case "1":
if (ParentTxt.SelectionStart == ParentTxt.Text.Length && ParentTxt.Text != "")
{
if (int.Parse(ParentTxt.Text) > 223)
{
MessageBox.Show(ParentTxt.Text + "不是有效項(xiàng)。請指定一個介于1和223之間的值。", "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Warning);
ParentTxt.Text = "223";
ParentTxt.SelectionStart = ParentTxt.Text.Length;
}
else
{
txt_2.Focus();
}
}
else if (ParentTxt.Text == "")
{
txt_2.Focus();
}
break;
case "2":
if (ParentTxt.SelectionStart == ParentTxt.Text.Length && ParentTxt.Text != "")
{
if (int.Parse(ParentTxt.Text) > 255)
{
MessageBox.Show(ParentTxt.Text + "不是有效項(xiàng)。請指定一個介于1和255之間的值。", "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Warning);
ParentTxt.Text = "255";
ParentTxt.SelectionStart = ParentTxt.Text.Length;
}
else
{
txt_3.Focus();
}
}
else if (ParentTxt.Text == "")
{
txt_3.Focus();
}
break;
case "3":
if (ParentTxt.SelectionStart == ParentTxt.Text.Length && ParentTxt.Text != "")
{
if (int.Parse(ParentTxt.Text) > 255)
{
MessageBox.Show(ParentTxt.Text + "不是有效項(xiàng)。請指定一個介于1和255之間的值。", "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Warning);
ParentTxt.Text = "255";
ParentTxt.SelectionStart = ParentTxt.Text.Length;
}
else
{
txt_4.Focus();
}
}
else if (ParentTxt.Text == "")
{
txt_4.Focus();
}
break;
case "4":
break;
}
}
}
public void txt_KeyPress(object sender, KeyPressEventArgs e)
{
ParentTxt = (TextBox)sender;
Regex regex = new Regex(@"^[0-9]+$");
if (!regex.IsMatch(e.KeyChar.ToString()) && e.KeyChar != (Char)Keys.Back)
{
e.Handled = true;
}
else if (e.KeyChar == (Char)Keys.Back)
{
e.Handled = false;
switch (ParentTxt.Name.Split('_')[1])
{
case "1":
break;
case "2":
if (ParentTxt.SelectionStart == 0)
{
txt_1.Focus();
if (txt_1.Text != "")
{
txt_1.Text = txt_1.Text.Substring(0, txt_1.Text.Length - 1);
}
txt_1.SelectionStart = txt_1.Text.Length;
}
break;
case "3":
if (ParentTxt.SelectionStart == 0)
{
txt_2.Focus();
if (txt_2.Text != "")
{
txt_2.Text = txt_2.Text.Substring(0, txt_2.Text.Length - 1);
}
txt_2.SelectionStart = txt_2.Text.Length;
}
break;
case "4":
if (ParentTxt.SelectionStart == 0)
{
txt_3.Focus();
if (txt_3.Text != "")
{
txt_3.Text = txt_3.Text.Substring(0, txt_3.Text.Length - 1);
}
txt_3.SelectionStart = txt_3.Text.Length;
}
break;
}
}
else
{
switch (ParentTxt.Name.Split('_')[1])
{
case "1":
if (ParentTxt.SelectionStart == ParentTxt.Text.Length)
{
if (int.Parse(ParentTxt.Text + e.KeyChar.ToString()) > 223)
{
MessageBox.Show(ParentTxt.Text + e.KeyChar.ToString() + "不是有效項(xiàng)。請指定一個介于1和223之間的值。", "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Warning);
e.Handled = true;
ParentTxt.Text = "223";
}
else
{
e.Handled = false;
}
}
else if(ParentTxt.Text.Length != 3)
{
e.Handled = false;
}
else
{
e.Handled = true;
}
break;
default:
if (ParentTxt.SelectionStart == ParentTxt.Text.Length)
{
if (int.Parse(ParentTxt.Text + e.KeyChar.ToString()) > 255)
{
MessageBox.Show(ParentTxt.Text + e.KeyChar.ToString() + "不是有效項(xiàng)。請指定一個介于1和255之間的值。", "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Warning);
e.Handled = true;
ParentTxt.Text = "255";
}
else
{
e.Handled = false;
}
}
else if (ParentTxt.Text.Length != 3)
{
e.Handled = false;
}
else
{
e.Handled = true;
}
break;
}
}
}
public void txt_TextChanged(object sender, EventArgs e)
{
if (ParentTxt.Text.Length == 3)
{
switch (ParentTxt.Name.Split('_')[1])
{
case "1":
if (ParentTxt.SelectionStart == ParentTxt.Text.Length)
{
txt_2.Focus();
}
break;
case "2":
if (ParentTxt.SelectionStart == ParentTxt.Text.Length)
{
txt_3.Focus();
}
break;
case "3":
if (ParentTxt.SelectionStart == ParentTxt.Text.Length)
{
txt_4.Focus();
}
break;
case "4":
break;
}
}
}
}
}
ControlText.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Text.RegularExpressions;
namespace IPInputControl.Ctrl
{
public partial class ControlText : TextBox
{
public ControlText()
{
InitializeComponent();
}
public void txt_TextChange(object sender, EventArgs e)
{
if (this.Text.Length == 3)
{
SendKeys.Send("{TAB}");
}
}
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
if (keyData == Keys.Tab)
{
return true;
}
return base.ProcessCmdKey(ref msg, keyData);
}
}
}
更多完整代碼請點(diǎn)擊下載:WinForm IP地址輸入框控件
以上就是本文的全部內(nèi)容,希望對大家的學(xué)習(xí)有所幫助,也希望大家多多支持腳本之家。
您可能感興趣的文章:
- C#日期控件datetimepicker保存空值的三種方法
- winform dateTime數(shù)據(jù)類型轉(zhuǎn)換方法
- c# Winform自定義控件-儀表盤功能
- Winform控件Picture實(shí)現(xiàn)圖片拖拽顯示效果
- WinForm實(shí)現(xiàn)鼠標(biāo)拖動控件跟隨效果
- winform實(shí)現(xiàn)可拖動的自定義Label控件
- 使用重繪項(xiàng)美化WinForm的控件
- C# winform自定義翻頁控件詳解
- C# WinForm實(shí)現(xiàn)窗體上控件自由拖動功能示例
- Winform控件SaveFileDialog用于保存文件
- C#中WinForm控件的拖動和縮放的實(shí)現(xiàn)代碼
- C# WinForm-Timer控件的使用
相關(guān)文章
深入多線程之:解析線程的交會(Thread Rendezvous)詳解
本篇文章是對線程的交會(Thread Rendezvous)進(jìn)行了詳細(xì)的分析介紹,需要的朋友參考下2013-05-05
C#實(shí)現(xiàn)嵌套循環(huán)的示例代碼
這篇文章主要為大家詳細(xì)介紹了C#實(shí)現(xiàn)嵌套循環(huán)的相關(guān)知識,文中的示例代碼講解詳細(xì),具有一定的學(xué)習(xí)價(jià)值,感興趣的小伙伴可以跟隨小編一起學(xué)習(xí)一下2023-09-09
C#使用WMI獲取硬盤參數(shù)的實(shí)現(xiàn)方法
因?yàn)樾枨笮枰婕矮@取硬盤的SN參數(shù),但是又不想要獲取到U盤或移動硬盤設(shè)備的SN,所以就淺淺的研究了一下,本文給大家介紹了C#使用WMI獲取硬盤參數(shù)的實(shí)現(xiàn)方法,需要的朋友可以參考下2024-06-06
Unity存儲游戲數(shù)據(jù)的多種方法小結(jié)
這篇文章主要介紹了Unity存儲游戲數(shù)據(jù)的幾種方法,在游戲開發(fā)中,存儲游戲數(shù)據(jù)是非常重要的,因?yàn)橛螒驍?shù)據(jù)決定了游戲的各個方面,例如游戲的進(jìn)度、玩家的成就、游戲的設(shè)置,需要的朋友可以參考下2023-02-02

