WPF中使用Hashtable剔除重复字符串(比如电话号码)

本文中的输入框中的字符串是逗号隔开的,你可以换成其他特别的字符串.

本篇中的亮点:
1. 里面有一个玻璃样式按钮,用XAML制作
2. WPF下TextBox允许多行文本的设置
3. 使用Hashtable剔除重复字符串(比如电话号码)

运行时的样子:(为了保护隐私,做了虚化及其他处理)

WPF下TextBox允许多行文本的设置:
需要:
(1)将TextWrapping设为"Wrap"
(2)将AcceptsReturn设为"True"
(3)将VerticalScrollBarVisibility设置为"Visible"?

具体参见这里:http://msdn2.microsoft.com/en-us/library/ms742157.aspx

下面XAML代码和C#代码使用Hashtable实现剔除以逗号隔开的字符串:
?xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
?xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
?Background="#FFFFFFFF"
?x:Name="DocumentRoot"
?x:Class="UntitledProject1.Scene1"
?Width="640" Height="480">

?
??
??
???
????
?????
?????
????
????
?????
????
????
?????
??????
???????
????????
?????????
?????????
?????????
?????????
????????
???????
???????
???????
??????
?????
?????
??????
???????
????????
?????????
?????????
?????????
?????????
?????????
?????????
????????
???????
???????
???????
??????
?????
????
????
????
????
?????
??????
???????
???????
???????
???????
???????
???????
??????
?????
?????
??????
???????
????????
?????????
?????????
?????????
?????????
?????????
?????????
????????
???????
???????
???????
??????
?????
????
???
??
?
?
?
??
?
?
??
?
?
?
?
?
? 重复总数
? 重复字符
? 字符列表（用逗号隔开）

关键的C#代码:
?void GetTelNo(object sender, RoutedEventArgs e)
??????? {
??????????? string tels = txtBoxTel.Text;
??????????? string[] telArr = tels.Split(new char[] { ‘,‘});

??????????? txtBoxTelCount.Text = telArr.Length.ToString();

??????????? Hashtable ht = new Hashtable();
??????????? Hashtable htRepeat = new Hashtable();
??????????? for (int i = 0; i ??????????? {
??????????????? try
??????????????? {
??????????????????? ht.Add(telArr[i], telArr[i]);
??????????????? }
??????????????? catch
??????????????? {
??????????????????? htRepeat.Add(i.ToString(), telArr[i]);
??????????????? }
??????????? }

??????????? StringBuilder sb = new StringBuilder();
??????????? ICollection valueColl = ht.Values;
??????????? foreach (string s in valueColl)
??????????? {
??????????????? sb.Append(s + ",");
??????????? }

??????????? StringBuilder sbRepeat = new StringBuilder();
??????????? ICollection valueCollRepeat = htRepeat.Values;
??????????? foreach (string s in valueCollRepeat)
??????????? {
??????????????? sbRepeat.Append(s + ",");
??????????? }

??????????? txtBoxTel.Text = sb.ToString().TrimEnd(new char[]{‘,‘});
??????????? txtBoxRepeatTel.Text = sbRepeat.ToString().TrimEnd(new char[] { ‘,‘ });

??????? }

完整的代码下载:(无法上传源码,试了几次都不行,唉....)

附: Window Forms的代码：

// Form1.Designer.cs
namespace BrawDraw.Com.HashtableFaxNoReplace
{
??? partial class Form1
??? {
??????? ///

??????? /// 必需的设计器变量。
??????? ///

??????? private System.ComponentModel.IContainer components = null;

??????? ///

??????? /// 清理所有正在使用的资源。
??????? ///

??????? /// 如果应释放托管资源，为 true；否则为 false。
??????? protected override void Dispose(bool disposing)
??????? {
??????????? if (disposing && (components != null))
??????????? {
??????????????? components.Dispose();
??????????? }
??????????? base.Dispose(disposing);
??????? }

??????? #region Windows 窗体设计器生成的代码

??????? ///

??????? /// 设计器支持所需的方法 - 不要
??????? /// 使用代码编辑器修改此方法的内容。
??????? ///

??????? private void InitializeComponent()
??????? {
??????????? this.btnGetTelNo = new System.Windows.Forms.Button();
??????????? this.txtBoxTel = new System.Windows.Forms.TextBox();
??????????? this.txtBoxRepeatTel = new System.Windows.Forms.TextBox();
??????????? this.txtBoxTelCount = new System.Windows.Forms.TextBox();
??????????? this.SuspendLayout();
??????????? //
??????????? // btnGetTelNo
??????????? //
??????????? this.btnGetTelNo.Location = new System.Drawing.Point(489, 3);
??????????? this.btnGetTelNo.Name = "btnGetTelNo";
??????????? this.btnGetTelNo.Size = new System.Drawing.Size(57, 23);
??????????? this.btnGetTelNo.TabIndex = 0;
??????????? this.btnGetTelNo.Text = "转换";
??????????? this.btnGetTelNo.UseVisualStyleBackColor = true;
??????????? this.btnGetTelNo.Click += new System.EventHandler(this.btnGetTelNo_Click);
??????????? //
??????????? // txtBoxTel
??????????? //
??????????? this.txtBoxTel.Location = new System.Drawing.Point(5, 3);
??????????? this.txtBoxTel.MaxLength = 32767000;
??????????? this.txtBoxTel.Multiline = true;
??????????? this.txtBoxTel.Name = "txtBoxTel";
??????????? this.txtBoxTel.Size = new System.Drawing.Size(478, 272);
??????????? this.txtBoxTel.TabIndex = 1;
??????????? //
??????????? // txtBoxRepeatTel
??????????? //
??????????? this.txtBoxRepeatTel.Location = new System.Drawing.Point(5, 281);
??????????? this.txtBoxRepeatTel.Multiline = true;
??????????? this.txtBoxRepeatTel.Name = "txtBoxRepeatTel";
??????????? this.txtBoxRepeatTel.Size = new System.Drawing.Size(478, 190);
??????????? this.txtBoxRepeatTel.TabIndex = 2;
??????????? //
??????????? // txtBoxTelCount
??????????? //
??????????? this.txtBoxTelCount.Location = new System.Drawing.Point(490, 33);
??????????? this.txtBoxTelCount.Name = "txtBoxTelCount";
??????????? this.txtBoxTelCount.Size = new System.Drawing.Size(56, 21);
??????????? this.txtBoxTelCount.TabIndex = 3;
??????????? //
??????????? // Form1
??????????? //
??????????? this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
??????????? this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
??????????? this.ClientSize = new System.Drawing.Size(558, 472);
??????????? this.Controls.Add(this.txtBoxTelCount);
??????????? this.Controls.Add(this.txtBoxRepeatTel);
??????????? this.Controls.Add(this.txtBoxTel);
??????????? this.Controls.Add(this.btnGetTelNo);
??????????? this.Name = "Form1";
??????????? this.Text = "Form1";
??????????? this.ResumeLayout(false);
??????????? this.PerformLayout();

??????? }

??????? #endregion

??????? private System.Windows.Forms.Button btnGetTelNo;
??????? private System.Windows.Forms.TextBox txtBoxTel;
??????? private System.Windows.Forms.TextBox txtBoxRepeatTel;
??????? private System.Windows.Forms.TextBox txtBoxTelCount;
??? }
}

// Form1.cs
using System;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Windows.Forms;

namespace BrawDraw.Com.HashtableFaxNoReplace
{
??? public partial class Form1 : Form
??? {
??????? public Form1()
??????? {
??????????? InitializeComponent();
??????? }

??????? private void btnGetTelNo_Click(object sender, EventArgs e)
??????? {
??????????? string tels = txtBoxTel.Text;
??????????? string[] telArr = tels.Split(new char[] { ‘/r‘ });

??????????? txtBoxTelCount.Text = telArr.Length.ToString();

??????????? Hashtable ht = new Hashtable();
??????????? Hashtable htRepeat = new Hashtable();
??????????? for (int i = 0; i ??????????? {
??????????????? try
??????????????? {
????????????????????// 这里将电话区号0755去掉，以便后面将所有Fax号码加上0755
??????????????????? ht.Add(telArr[i], telArr[i].Replace("0755", "").Replace("/n", ""));
??????????????? }
??????????????? catch
??????????????? {
??????????????????? htRepeat.Add(i.ToString(), telArr[i].Replace("/n", ""));
??????????????? }
??????????? }

??????????? StringBuilder sb = new StringBuilder();
??????????? ICollection valueColl = ht.Values;
??????????? foreach (string s in valueColl)
??????????? {
??????????????? // 加上电话区号0755
??????????????? sb.Append("0755" + s + ",");
??????????? }

??????????? StringBuilder sbRepeat = new StringBuilder();
??????????? ICollection valueCollRepeat = htRepeat.Values;
??????????? foreach (string s in valueCollRepeat)
??????????? {
??????????????? sbRepeat.Append(s + ",");
??????????? }

??????????? txtBoxTel.Text = sb.ToString().TrimEnd(new char[] { ‘,‘ });
??????????? txtBoxRepeatTel.Text = sbRepeat.ToString().TrimEnd(new char[] { ‘,‘ });
??????? }
??? }
}

// Program.cs
using System;
using System.Collections.Generic;
using System.Windows.Forms;

namespace BrawDraw.Com.HashtableFaxNoReplace
{
??? static class Program
??? {
??????? ///

??????? /// 应用程序的主入口点。
??????? ///

??????? [STAThread]
??????? static void Main()
??????? {
??????????? Application.EnableVisualStyles();
??????????? Application.SetCompatibleTextRenderingDefault(false);
??????????? Application.Run(new Form1());
??????? }
??? }
}