<% @ Page Language = "VB" ContentType = "text/html" ResponseEncoding = "gb2312" %>
<Head>
<Title> validation Control </title>
</Head>
<Body>
<Form runat = "server">
<P> input name:
<Asp: TextBox ID = "nam" Text = "name" TextMode = "SingleLine" runat = "server"/> <asp: requiredFieldValidator ControlToValidate = "nam" Display = "Dynamic" ErrorMessage = "must enter the name" ID = "rnam" runat = "server"/> </p>
<P> input date:
<Asp: TextBox ID = "dat" Text = "date" TextMode = "SingleLine" runat = "server"/> <asp: compareValidator ControlToValidate = "dat" Display = "Dynamic" ErrorMessage = "the correct format of the date is yyyy-mm-dd" ID = "rdat" Operator = "DataTypeCheck" runat = "server" type = "Date"/> </p>
<P> input value (integer ):
<Asp: TextBox ID = "type" Text = "value" TextMode = "SingleLine" runat = "server"/> <asp: compareValidator ControlToValidate = "type" Display = "Dynamic" ErrorMessage = "you entered not an Integer" ID = "rtype" Operator = "DataTypeCheck" runat = "server" Type = "Integer "/> </p>
<P> input number (1-10 ):
<Asp: TextBox ID = "num" Text = "value" TextMode = "SingleLine" runat = "server"/> <asp: rangeValidator ControlToValidate = "num" Display = "Dynamic" ErrorMessage = "only numbers between 1 and 10" ID = "rnum" Type = "Integer" MaximumValue = "10" MinimumValue = "1 "runat =" server "/> </p>
<P> enter a value smaller than 50:
<Asp: TextBox ID = "num5" Text = "TextMode =" SingleLine "runat =" server "/>
<Asp: compareValidator ControlToValidate = "num5" Display = "Dynamic" ErrorMessage = "you enter no less than 50" ID = "rnum5" Operator = "LessThan" runat = "server" Type =" integer "ValueToCompare =" 50 "/> </p>
<P> enter an email at will:
<Asp: TextBox ID = "eml" Text = "email" TextMode = "SingleLine" runat = "server"/>
<Asp: RegularExpressionValidator ControlToValidate = "eml" Display = "Dynamic" ErrorMessage = "should be 3-6 arbitrary characters @ 2-9 arbitrary characters. 2-3 arbitrary characters "ID =" reml "runat =" server "ValidationExpression = ". {3, 6 }@. {2, 9 }\.. {2, 3} "/>
<Asp: ValidationSummary DisplayMode = "List" HeaderText = "error message set" ID = "tt" runat = "server"/> </p>
<P>
<Asp: Button ID = "But" Text = "Submit" runat = "server"/> </p>
</P>
</Form>
<P> RegularExpressionValidator control expression Description: </p>
<P> <strong> Square brackets "[]" </strong> Use and define acceptable characters. [Abc123] indicates that the control can only accept the six characters a, B, c, 1, 2, and 3. </p>
<P> <strong> the inverse collection symbol "^" </strong> is used to define unacceptable characters. [^ A-h] indicates that the control is acceptable except for 8 characters a to h. </p>
<P> <strong> curly braces "{}" </strong> define the number of characters that must be entered. {6} indicates that only six characters can be entered; {6,} indicates that more than six characters must be entered; {} indicates that 2 to 6 characters must be entered; however, curly braces must be placed behind square brackets. For example, [a-z] {4} indicates that any character between 4 digits a and z must be entered. </P>
<P> <strong> small dot "." </strong> is used to represent any character. For example,. {3, 6} indicates to accept 3 to 6 arbitrary characters. </P>
<P> <strong> vertical line "|" </strong> is a logical symbol used to represent "or. For example, [1-9] {3, 6} | [A-Za-z] {3} indicates that 3 to 6 digits or 3 letters are allowed. (Case sensitivity can be different.) </p>
<P> <strong> parentheses "()" </strong> are used for chunking. They are similar to parentheses in numeric operations. </P>
<P> <strong> slash "\" </strong> if you want acceptable characters to include the preceding special characters. For example, \ ([0-9] {3} \) indicates the phone number in the format of "(xxx. </P>
<P> & nbsp; </p>
</Body>
</Html>
