C#實現彈窗提示輸入密碼
本文實例為大傢分享瞭C#實現彈窗提示輸入密碼的具體代碼,供大傢參考,具體內容如下
String PM = Interaction.InputBox("請輸入密碼", "輸入密碼", "", 100, 100); if (PM != "2222") { MessageBox.Show("請輸入正確的密碼謝謝!!!!!"); return; }
如果需要輸入的密碼為加密****,則需要自定義控件,直接調用該類即可InputBox
使用方法為:
string inMsg = InputBox.ShowInputBox("請輸入管理員(admin)的密碼", string.Empty); if (inMsg.Trim() != string.Empty) { MessageBox.Show(inMsg); }
InputBox類
using System; using System.Collections.Generic; using System.Text; using System.Windows.Forms; public class InputBox : System.Windows.Forms.Form { private TextBox textBox_Data; private Button button_Enter; private Button button_Esc; private System.ComponentModel.Container components = null; private InputBox() { InitializeComponent(); this.TopMost = true; //this.StartPosition = FormStartPosition.CenterScreen; //inputbox.Location.X = 0; inputbox.Location.Y = 0; //inputbox.StartPosition = FormStartPosition.CenterScreen; //inputbox.Left = 0; //inputbox.Top = 0; } protected override void Dispose(bool disposing) { if (disposing) { if (components != null) { components.Dispose(); } } base.Dispose(disposing); } private void InitializeComponent() { this.textBox_Data = new System.Windows.Forms.TextBox(); this.button_Enter = new System.Windows.Forms.Button(); this.button_Esc = new System.Windows.Forms.Button(); this.SuspendLayout(); // // textBox_Data // this.textBox_Data.Location = new System.Drawing.Point(8, 8); this.textBox_Data.Name = "textBox_Data"; this.textBox_Data.PasswordChar = '*'; this.textBox_Data.Size = new System.Drawing.Size(230, 21); this.textBox_Data.TabIndex = 2; this.textBox_Data.KeyDown += new System.Windows.Forms.KeyEventHandler(this.textBox_Data_KeyDown); // // button_Enter // this.button_Enter.Location = new System.Drawing.Point(25, 43); this.button_Enter.Name = "button_Enter"; this.button_Enter.Size = new System.Drawing.Size(75, 23); this.button_Enter.TabIndex = 3; this.button_Enter.Text = "確 認"; this.button_Enter.UseVisualStyleBackColor = true; this.button_Enter.Click += new System.EventHandler(this.button_Enter_Click); // // button_Esc // this.button_Esc.Location = new System.Drawing.Point(140, 43); this.button_Esc.Name = "button_Esc"; this.button_Esc.Size = new System.Drawing.Size(75, 23); this.button_Esc.TabIndex = 4; this.button_Esc.Text = "取 消"; this.button_Esc.UseVisualStyleBackColor = true; this.button_Esc.Click += new System.EventHandler(this.button_Esc_Click); // // InputBox // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.ClientSize = new System.Drawing.Size(250, 80); this.Controls.Add(this.button_Esc); this.Controls.Add(this.button_Enter); this.Controls.Add(this.textBox_Data); this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog; this.MaximizeBox = false; this.MinimizeBox = false; this.ControlBox = false; this.Name = "InputBox"; this.Text = "InputBox"; this.ResumeLayout(false); this.PerformLayout(); } //對鍵盤進行響應 private void textBox_Data_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.Enter) { button_Enter_Click(sender, e); } else if (e.KeyCode == Keys.Escape) { button_Esc_Click(sender, e); } } private void button_Enter_Click(object sender, EventArgs e) { this.Close(); } private void button_Esc_Click(object sender, EventArgs e) { textBox_Data.Text = string.Empty; this.Close(); } //顯示InputBox public static string ShowInputBox(int Left, int Top, string Title, string Prompt, string DefaultResponse) { InputBox inputbox = new InputBox(); if (Title.Trim() != string.Empty) inputbox.Text = Title; if (DefaultResponse.Trim() != string.Empty) inputbox.textBox_Data.Text = DefaultResponse; inputbox.ShowDialog(); inputbox.Left = Left; inputbox.Top = Top; return inputbox.textBox_Data.Text; } public static string ShowInputBox(FormStartPosition Position, string Title, string Prompt, string DefaultResponse) { InputBox inputbox = new InputBox(); inputbox.StartPosition = Position; if (Title.Trim() != string.Empty) inputbox.Text = Title; if (DefaultResponse.Trim() != string.Empty) inputbox.textBox_Data.Text = DefaultResponse; inputbox.ShowDialog(); return inputbox.textBox_Data.Text; } public static string ShowInputBox() { return ShowInputBox(FormStartPosition.CenterScreen, string.Empty, string.Empty, string.Empty); } public static string ShowInputBox(string Title) { return ShowInputBox(FormStartPosition.CenterScreen, Title, string.Empty, string.Empty); } public static string ShowInputBox(string Title, string Prompt) { return ShowInputBox(FormStartPosition.CenterScreen, Title, Prompt, string.Empty); } public static string ShowInputBox(string Title, string Prompt, string DefaultResponse) { return ShowInputBox(FormStartPosition.CenterScreen, Title, Prompt, DefaultResponse); } // 調用 // string inMsg = InputBox.ShowInputBox("請輸入管理員(admin)的密碼", string.Empty); // if (inMsg.Trim() != string.Empty) // { // MessageBox.Show(inMsg); // } }
以上就是本文的全部內容,希望對大傢的學習有所幫助,也希望大傢多多支持WalkonNet。