本文介绍了如何在此代码中从表单文本框中检索所有值的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想获取所有值，例如length和min length，字符串形式的范围，文本框的范围，请告诉我
i want to take all values like length and min length , range of string form form textbox, plz tell how
001.namespace ssp.PwdGen
002.{
003. using System;
004. using System.Security.Cryptography;
005. using System.Text;
006.
007. public class PasswordGenerator
008. {
009. public PasswordGenerator()
010. {
011. this.Minimum = DefaultMinimum;
012. this.Maximum = DefaultMaximum;
013. this.ConsecutiveCharacters = false;
014. this.RepeatCharacters = true;
015. this.ExcludeSymbols = false;
016. this.Exclusions = null;
017.
018. rng = new RNGCryptoServiceProvider();
019. }
020.
021. protected int GetCryptographicRandomNumber(int lBound, int uBound)
022. {
023. // Assumes lBound >= 0 && lBound < uBound
024.
025. // returns an int >= lBound and < uBound
026.
027. uint urndnum;
028. byte[] rndnum = new Byte[4];
029. if (lBound == uBound-1)
030. {
031. // test for degenerate case where only lBound can be returned
032.
033. return lBound;
034. }
035.
036. uint xcludeRndBase = (uint.MaxValue -
037. (uint.MaxValue%(uint)(uBound-lBound)));
038.
039. do
040. {
041. rng.GetBytes(rndnum);
042. urndnum = System.BitConverter.ToUInt32(rndnum,0);
043. } while (urndnum >= xcludeRndBase);
044.
045. return (int)(urndnum % (uBound-lBound)) + lBound;
046. }
047.
048. protected char GetRandomCharacter()
049. {
050. int upperBound = pwdCharArray.GetUpperBound(0);
051.
052. if ( true == this.ExcludeSymbols )
053. {
054. upperBound = PasswordGenerator.UBoundDigit;
055. }
056.
057. int randomCharPosition = GetCryptographicRandomNumber(
058. pwdCharArray.GetLowerBound(0), upperBound);
059.
060. char randomChar = pwdCharArray[randomCharPosition];
061.
062. return randomChar;
063. }
064.
065. public string Generate()
066. {
067. // Pick random length between minimum and maximum
068.
069. int pwdLength = GetCryptographicRandomNumber(this.Minimum,
070. this.Maximum);
071.
072. StringBuilder pwdBuffer = new StringBuilder();
073. pwdBuffer.Capacity = this.Maximum;
074.
075. // Generate random characters
076.
077. char lastCharacter, nextCharacter;
078.
079. // Initial dummy character flag
080.
081. lastCharacter = nextCharacter = ''\n'';
082.
083. for ( int i = 0; i < pwdLength; i++ )
084. {
085. nextCharacter = GetRandomCharacter();
086.
087. if ( false == this.ConsecutiveCharacters )
088. {
089. while ( lastCharacter == nextCharacter )
090. {
091. nextCharacter = GetRandomCharacter();
092. }
093. }
094.
095. if ( false == this.RepeatCharacters )
096. {
097. string temp = pwdBuffer.ToString();
098. int duplicateIndex = temp.IndexOf(nextCharacter);
099. while ( -1 != duplicateIndex )
100. {
101. nextCharacter = GetRandomCharacter();
102. duplicateIndex = temp.IndexOf(nextCharacter);
103. }
104. }
105.
106. if ( ( null != this.Exclusions ) )
107. {
108. while ( -1 != this.Exclusions.IndexOf(nextCharacter) )
109. {
110. nextCharacter = GetRandomCharacter();
111. }
112. }
113.
114. pwdBuffer.Append(nextCharacter);
115. lastCharacter = nextCharacter;
116. }
117.
118. if ( null != pwdBuffer )
119. {
120. return pwdBuffer.ToString();
121. }
122. else
123. {
124. return String.Empty;
125. }
126. }
127.
128. public string Exclusions
129. {
130. get { return this.exclusionSet; }
131. set { this.exclusionSet = value; }
132. }
133.
134. public int Minimum
135. {
136. get { return this.minSize; }
137. set
138. {
139. this.minSize = value;
140. if ( PasswordGenerator.DefaultMinimum > this.minSize )
141. {
142. this.minSize = PasswordGenerator.DefaultMinimum;
143. }
144. }
145. }
146.
147. public int Maximum
148. {
149. get { return this.maxSize; }
150. set
151. {
152. this.maxSize = value;
153. if ( this.minSize >= this.maxSize )
154. {
155. this.maxSize = PasswordGenerator.DefaultMaximum;
156. }
157. }
158. }
159.
160. public bool ExcludeSymbols
161. {
162. get { return this.hasSymbols; }
163. set { this.hasSymbols = value;}
164. }
165.
166. public bool RepeatCharacters
167. {
168. get { return this.hasRepeating; }
169. set { this.hasRepeating = value;}
170. }
171.
172. public bool ConsecutiveCharacters
173. {
174. get { return this.hasConsecutive; }
175. set { this.hasConsecutive = value;}
176. }
177.
178. private const int DefaultMinimum = 6;
179. private const int DefaultMaximum = 10;
180. private const int UBoundDigit = 61;
181.
182. private RNGCryptoServiceProvider rng;
183. private int minSize;
184. private int maxSize;
185. private bool hasRepeating;
186. private bool hasConsecutive;
187. private bool hasSymbols;
188. private string exclusionSet;
189. private char[] pwdCharArray = "abcdefghijklmnopqrstuvwxyzABCDEFG" +
190. "HIJKLMNOPQRSTUVWXYZ0123456789`~!@#$%^&*()-_=+[]{}\\|;:'' \",<" +
".>/?".ToCharArray();
}
}推荐答案
int maxValue = 0;
if (int.TryParse(inputMaxValue.Text, out maxValue))
{
if (maxValue < 9999)
{
// Process.
}
else
{
// Error: max Value out of range
}
}
else
{
// Error: max value must be a number
}然后重复显示最小值和范围.
Then repeat for minimum, and range.
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