C#webfrom six verification and use method

C # contains six types of authentication methods, namely:

One, non-null verification requiredfieldvalidator.

Second, comparative verification CompareValidator.

Third, scope verification RangeValidator.

Four, the regular expression validation RegularExpressionValidator.

V. Verification summary ValidationSummary.

Vi. custom Validation.

Two application tips:

1. Prevent the button from firing the validation control.
By default, the Class 3 button fires validation.
If you do not want to fire validation: give the button a Causevalidation=false

2. Verify the problem with the grouping.
Set the ValidationGroup property of the input control (text box, radio, multiple selection), validation control (non-null, contrast, range, regular, custom, summary), button to the same value.

They become a group.

The first three attributes that need to be modified to use the validation space (six general authentication methods are common):

1.ErrorMessage: Error message displayed for validation failure

2.Display: How the Validator is displayed-in general dynamic display (verification failure display).

3.CotrolToValidate: The control ID to validate (for example: Verify the contents of the account in the TextBox, cotorltovalidate the textbox ID).

Different properties:

One, non-null verification requiredfieldvalidator.

InitialValue-The initial value of the validation, the value of the validated control is the same as this value, is considered null

For example: two characters (required) in the text box

Second, comparative verification CompareValidator.

ControlToCompare-The ID of the control to compare

ValueToCompare-the value to compare

Operator-Operator of contrast

Type-types of comparisons entered

Third, scope verification RangeValidator.

MaximumValue-Upper limit of range
MinimumValue-Lower limit of range
Type-Types

Four, the regular expression validation RegularExpressionValidator.

ValidationExpression-Validate expression (also definable)

V. Verification summary ValidationSummary.

ShowMessageBox-whether to display summary error messages as dialog boxes
ShowSummary-whether to display summary error messages on the page

Vi. custom validation.---Custom validation is considered to be the most powerful authentication method

Required Information:

ErrorMessage-Prompt message after verifying the error

ControlToValidate-ID of the control to validate

Display-how it is displayed. static-does not show up also occupies space. dynamic-does not show space

ClientValidationFunction-The function name of the client-side validation function. (Do not add brackets)

Specification for client-side validation functions:
Function name (event source, event data)
{
The event data. Value-values to be given to the certificate. The value in the input box to be validated by the validation control.
The event data. IsValid--tells the validation control to verify that it passed.
}

Case:

    　　<script language= "JavaScript" > Function Zhishu (A, b) {//a-event source, B-event data//main use B.value-gets the value of the control to be validated by the validation control.            The value that will be validated. B.isvalid-tells the browser to verify that it is passed.            true-through. false-does not pass (displays the errormessage, blocks the submission).            Step//1. Take out the values to be validated.            var s = b.value;            2. verify var IsOK = false;                 if (IsNaN (s) = = False) {//first to see is not a number var ZC = 0;     The number of the remainder is 0 var num = parseint (s);                    Converted to an integer calculation for (var i = 1; I <= num; i++) {//starting from 1 to the value itself, divisible by each, if divisible to record zc++;                    if (num% i = = 0) {zc++;                }} if (Zc = = 2) {IsOK = true;                } else {IsOK = false;            }} else {IsOK = false;            }//3. Tell the validation control whether validation passed. B.isvalid = IsOK;        } </script> 

C#webfrom six verification and use method