??怎样控制textBoxs中录入的数据?? c/s

[csharpbase]

1.在身份证号码录入的时候,保证为15位或者18位的阿拉伯数字
2.保证Email的正确录入
3.怎么实现在textBoxs中录入的数据为字符串首必须为英文,后面的必须为英文或者阿拉伯数字,且不能为特殊字符?

这里我指的是Windows 应用程序开发,不是B/S模式的.

三个问题,这里先感谢各位了?

[hglai]

1.在身份证号码录入的时候,保证为15位或者18位的阿拉伯数字
用javascript和c#都可以实现
javascript用text1.value.lenght()!=15 ||text1.value.length()!=18{}
c用length，和java差不多


2.保证Email的正确录入
用个验证函数，或者用正则表达试

3.怎么实现在textBoxs中录入的数据为字符串首必须为英文,后面的必须为英文或者阿拉伯数字,且不能为特殊字符?
通用，正则表达式

[CHONGLOU]

算法问题，不算难，再想想。

[csharpbase]

首先对hglai(hglai)和CHONGLOU(重楼)的关注表示感谢!

但本人对正则表达式不熟悉

请问各位能不能给一个正则表达式,让我试试??

先感谢了!

[shuker]

给你一段代码参考一下

[shuker]

public class clsStrictedTextBox : System.Windows.Forms.TextBox
{
private string m_strOriginal;
private string m_strCharSet;
private string m_strErrorMessage;
private bool m_bRemoveMsg;
private bool m_bCurrencyMode;
private bool m_bRemoveValueChanged;
private System.Globalization.CultureInfo m_ci;

// true for 可以输入的值必须在charset中, false for 可以输入的值一个都不能出现在charset中
private bool m_bIsInCharSet;

public clsStrictedTextBox()
{
this.m_ci = new System.Globalization.CultureInfo("zh-CN");
this.m_bRemoveMsg = false;
this.m_bCurrencyMode = false;
this.m_bRemoveValueChanged = false;
this.m_strOriginal = "";
this.m_bIsInCharSet = true;
this.m_strCharSet = "";
this.m_strErrorMessage = "";
this.TextChanged += new System.EventHandler(this.OnTextChanged);
this.Leave += new System.EventHandler(this.OnTextBoxLeave);
this.Enter += new System.EventHandler(this.OnTextBoxEnter);
}

/// <summary>
/// 这个函数用来设置字符集和标志
/// </summary>
/// <param name="strCharSet"></param>
/// <param name="bIsIn"></param>
public void SetCharSet(string strCharSet, bool bIsIn)
{
this.m_strCharSet = strCharSet;
this.m_bIsInCharSet = bIsIn;
}

public void SetErrorMessage(string strErrorMessage)
{
this.m_strErrorMessage = strErrorMessage;
}

public void RemoveHook(bool bRemove)
{
this.m_bRemoveMsg = bRemove;
}

public void SetCurrencyMode(string strErrorMessage)
{
this.m_bCurrencyMode = true;
this.m_strCharSet = "0123456789.";
this.m_bIsInCharSet = true;
this.m_strErrorMessage = strErrorMessage;
this.m_bRemoveValueChanged = true;
}

private void ShowErrorMessage()
{
if(this.m_strErrorMessage.Trim ().Length != 0)
System.Windows .Forms .MessageBox.Show (this.m_strErrorMessage);
}

private void OnTextChanged(object sender, System.EventArgs e)
{
if(this.m_bRemoveMsg || this.m_bRemoveValueChanged)
return;

if(this.m_strCharSet.Length == 0)
return;

bool bFind = false;

foreach(char c in this.Text)
{
if(((this.m_bIsInCharSet == true) && (m_strCharSet.IndexOf(c, 0)<0)) ||
((this.m_bIsInCharSet == false) && (m_strCharSet.IndexOf(c, 0)>=0)))
{
bFind = true;
break;
}
}

if(bFind == true)
{
int temp = this.SelectionStart;
this.Text = this.m_strOriginal;
this.SelectionStart = (temp-1)>=0 ? temp-1 : 0;
if(this.m_bCurrencyMode == false)
this.ShowErrorMessage ();
}
else
this.m_strOriginal = this.Text;
}

private void OnTextBoxEnter(object sender, System.EventArgs e)
{
if(this.m_bRemoveMsg || (this.m_bCurrencyMode == false) || (this.Text.Trim().Length == 0))
return;

try
{
double dCurrency = double.Parse(this.Text.Trim(),System.Globalization.NumberStyles.Currency, this.m_ci);

this.Text = dCurrency.ToString("F");

this.m_bRemoveValueChanged = false;
}
catch(Exception)
{
this.Focus();
this.ShowErrorMessage();
}
}

private void OnTextBoxLeave(object sender, System.EventArgs e)
{
if(this.m_bRemoveMsg || (this.m_bCurrencyMode == false))
return;

if(this.Text.Trim().Length == 0)
{
this.Text = "0";
}

try
{
double dCurrency = double.Parse(this.Text.Trim());

this.m_bRemoveValueChanged = true;

this.Text = dCurrency.ToString("C", this.m_ci);
}
catch(Exception)
{
this.m_bRemoveMsg = true;
this.Focus();

this.ShowErrorMessage();
this.m_bRemoveMsg = false;
}
}
}

[csharpbase]

to:shuker(我是一只小花猪) 先谢谢你了,不过我得研究一下!

[csharpbase]

up

[csharpbase]

up