Page.Validate 메서드

정의

페이지에 포함된 유효성 검사 컨트롤이 자신에게 할당된 정보의 유효성을 검사하도록 합니다.Instructs any validation controls included on the page to validate their assigned information.

오버로드

Validate()

페이지에 포함된 유효성 검사 컨트롤이 자신에게 할당된 정보의 유효성을 검사하도록 합니다.Instructs any validation controls included on the page to validate their assigned information.

Validate(String)

지정된 유효성 검사 그룹의 유효성 검사 컨트롤이 할당된 정보의 유효성을 검사하도록 합니다.Instructs the validation controls in the specified validation group to validate their assigned information.

Validate()

페이지에 포함된 유효성 검사 컨트롤이 자신에게 할당된 정보의 유효성을 검사하도록 합니다.Instructs any validation controls included on the page to validate their assigned information.

public:
 virtual void Validate();
public virtual void Validate ();
abstract member Validate : unit -> unit
override this.Validate : unit -> unit
Public Overridable Sub Validate ()

예제

다음 코드 예제에서는 여러 가지 유효성 검사 그룹이 정의 된 시나리오에서 페이지의 Validate 메서드를 호출 합니다.The following code example calls the Validate method on a page in a scenario with several different validation groups defined.

중요

이 예제에는 사용자 입력을 허용하는 텍스트 상자가 있으므로 보안상 위험할 수 있습니다.This example has a text box that accepts user input, which is a potential security threat. 기본적으로 ASP.NET 웹 페이지는 사용자 입력 내용에 스크립트 또는 HTML 요소가 포함되어 있지 않은지 확인합니다.By default, ASP.NET Web pages validate that user input does not include script or HTML elements. 자세한 내용은 Script Exploits Overview를 참조하세요.For more information, see Script Exploits Overview.

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  protected void Button_Click(object sender, EventArgs e)
  {
    switch (((Button)sender).ID)
    {
      case "Button1":
        if (TextBoxValidator1.IsValid)
        {
          Label1.Text = "TextBox validates.";
        }
        else
        {
          Label1.Text = "";
          Label4.Text = "";
        }
        break;
      case "Button2":
        // Must explicitly cause Validate here because 
        // Button2 has CausesValidation set to false.
        Validate("Group2");
        if (CustomValidator.IsValid)
        {
          Label2.Text = "CheckBox validates.";
        }
        else
        {
          Label2.Text = "";
          Label4.Text = "";
        }
        break;
      default:
      Label1.Text = "";
      Label2.Text = "";
      break;
        
    }
  }

  // Custom validator for check box.
  protected void CustomValidator_ServerValidate(object source, ServerValidateEventArgs args)
  {
    args.IsValid = (CheckBox1.Checked == true);
  }

  protected void Page_Load(object sender, EventArgs e)
  {
    if (IsPostBack && Context.Request.Form["__EVENTTARGET"] == "TextBox2")
    {
      // Handle AutoPostBack TextBox.
      Validate("Group3");
      if (Page.IsValid)
      {
        Label3.Text = "AutoPostBack TextBox validates.";
      }
      else
      {
        Label3.Text = "";
        Label4.Text = "";
      }
    }
    
  }

  protected void Button3_Click(object sender, EventArgs e)
  {
    Validate();
    if (Page.IsValid)
      Label4.Text = "All controls valid.";
    else
    {
      Label1.Text = "";
      Label2.Text = "";
      Label3.Text = "";
      Label4.Text = "";
    }

  }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Page Validate</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
      TextBox
      <asp:TextBox ID="TextBox1" ValidationGroup="Group1" runat="server"></asp:TextBox>
      <asp:RequiredFieldValidator Display="Static" ID="TextBoxValidator1" ValidationGroup="Group1" runat="server" ControlToValidate="TextBox1" ErrorMessage="(please enter some text)" EnableClientScript="False"></asp:RequiredFieldValidator>
      <br />
      CheckBox
      <asp:CheckBox ID="CheckBox1" ValidationGroup="Group2" runat="server" />
      <asp:CustomValidator ID="CustomValidator" ValidationGroup="Group2" runat="server" Text="(this option required)" OnServerValidate="CustomValidator_ServerValidate" EnableClientScript="False"></asp:CustomValidator>
      <br />
      <asp:Button ID="Button1" ValidationGroup="Group1" CausesValidation="true" runat="server" Text="Validate Group1 Controls" OnClick="Button_Click" />
      <asp:Label ID="Label1" runat="server"></asp:Label>
      <br />
      <asp:Button ID="Button2" ValidationGroup="Group2" CausesValidation="false" runat="server" Text="Validate Group2 Controls" OnClick="Button_Click" />
      <asp:Label ID="Label2" runat="server"></asp:Label>
      <br />
      <br />
      AutoPostBack TextBox
      <asp:TextBox AutoPostBack="true" ID="TextBox2" ValidationGroup="Group3" runat="server" CausesValidation="true"></asp:TextBox>
      <asp:RequiredFieldValidator ID="TextBoxValidator2" ValidationGroup="Group3" runat="server" ControlToValidate="TextBox2" ErrorMessage="(please enter some text)" EnableClientScript="False"></asp:RequiredFieldValidator>
      <asp:Label ID="Label3" runat="server"></asp:Label>
      <br />
      <br />
      <asp:Button ID="Button3" CausesValidation="true" runat="server" Text="Validate All Controls" OnClick="Button3_Click" />
      <asp:Label ID="Label4" runat="server"></asp:Label>
    
    </div>
    </form>
</body>
</html>
<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  Protected Sub Button_Click(ByVal sender As Object, ByVal e As System.EventArgs)

    Select Case CType(sender, Button).ID
      Case "Button1"
        If TextBoxValidator1.IsValid Then
          Label1.Text = "TextBox validates."
        Else
          Label1.Text = ""
          Label4.Text = ""
        End If
      Case "Button2"
        ' Must explicitly cause Validate here because 
        ' Button2 has CausesValidation set to false.
        Validate("Group2")
        If CustomValidator.IsValid Then
          Label2.Text = "CheckBox validates."
        Else
          Label2.Text = ""
          Label4.Text = ""
        End If
      Case Else
        Label1.Text = ""
        Label2.Text = ""
    End Select

  End Sub
  
  Protected Sub CustomValidator_ServerValidate(ByVal source As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs)
     
    args.IsValid = (CheckBox1.Checked)

  End Sub
  
  Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)

    If (IsPostBack) Then
      
    ' Handle AutoPostBack TextBox.
      Validate("Group3")
      If (Page.IsValid) Then
        Label3.Text = "AutoPostBack TextBox validates."
      Else
        Label3.Text = ""
        Label4.Text = ""
      End If
    End If
    
  End Sub

  Protected Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs)
  
    Validate()
    If (Page.IsValid) Then
      Label4.Text = "All controls valid."
    Else
      Label1.Text = ""
      Label2.Text = ""
      Label3.Text = ""
      Label4.Text = ""
    End If
    
  End Sub
  
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Page Validate</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
      TextBox
      <asp:TextBox ID="TextBox1" ValidationGroup="Group1" runat="server"></asp:TextBox>
      <asp:RequiredFieldValidator Display="Static" ID="TextBoxValidator1" ValidationGroup="Group1" runat="server" ControlToValidate="TextBox1" ErrorMessage="(please enter some text)" EnableClientScript="False"></asp:RequiredFieldValidator>
      <br />
      CheckBox
      <asp:CheckBox ID="CheckBox1" ValidationGroup="Group2" runat="server" />
      <asp:CustomValidator ID="CustomValidator" ValidationGroup="Group2" runat="server" Text="(this option required)" OnServerValidate="CustomValidator_ServerValidate" EnableClientScript="False"></asp:CustomValidator>
      <br />
      <asp:Button ID="Button1" ValidationGroup="Group1" CausesValidation="true" runat="server" Text="Validate Group1 Controls" OnClick="Button_Click" />
      <asp:Label ID="Label1" runat="server"></asp:Label>
      <br />
      <asp:Button ID="Button2" ValidationGroup="Group2" CausesValidation="false" runat="server" Text="Validate Group2 Controls" OnClick="Button_Click" />
      <asp:Label ID="Label2" runat="server"></asp:Label>
      <br />
      <br />
      AutoPostBack TextBox
      <asp:TextBox AutoPostBack="true" ID="TextBox2" ValidationGroup="Group3" runat="server" CausesValidation="true"></asp:TextBox>
      <asp:RequiredFieldValidator ID="TextBoxValidator2" ValidationGroup="Group3" runat="server" ControlToValidate="TextBox2" ErrorMessage="(please enter some text)" EnableClientScript="False"></asp:RequiredFieldValidator>
      <asp:Label ID="Label3" runat="server"></asp:Label>
      <br />
      <br />
      <asp:Button ID="Button3" CausesValidation="true" runat="server" Text="Validate All Controls" OnClick="Button3_Click" />
      <asp:Label ID="Label4" runat="server"></asp:Label>
    
    </div>
    </form>
</body>
</html>

설명

이 메서드는 사용자가 CausesValidation 속성이 true(기본값)로 설정 된 ASP.NET 서버 컨트롤을 클릭할 때 호출 됩니다.This method is invoked when a user clicks any ASP.NET server control that has the CausesValidation property set to true, which is the default. 여기에는 Button, ImageButtonLinkButton 웹 서버 컨트롤, HtmlInputButton, HtmlInputImage, HtmlButton HTML 서버 컨트롤, TextBox, CheckBox, ListControlBulletedList 컨트롤과 같이 서버에 자동으로 다시 게시 될 수 있는 컨트롤이 포함 됩니다.These include the Button, ImageButton, and LinkButton Web server controls, the HtmlInputButton, HtmlInputImage, and HtmlButton HTML server controls, and controls that can automatically post back to the server such as the TextBox, CheckBox, ListControl, and BulletedList controls.

페이지에서 단추 컨트롤에 대 한 유효성 검사를 사용 하지 않도록 설정 하려면 button 컨트롤의 CausesValidation 속성을 false로 설정 합니다.To disable validation for any button control on the page, set the button control's CausesValidation property to false.

이 메서드는 호출 될 때 Page.Validators 속성과 연결 된 ValidatorCollection 개체에 포함 된 유효성 검사 컨트롤을 반복 하 고 현재 유효성 검사 그룹의 각 유효성 검사 컨트롤에 대 한 유효성 검사 논리를 호출 합니다.When this method is invoked, it iterates through the validation controls contained in the ValidatorCollection object associated with the Page.Validators property and invokes the validation logic for each validation control in the current validation group. 유효성 검사 그룹 서버에 페이지를 게시 한 컨트롤에 의해 결정 됩니다.The validation group is determined by the control that posted the page to the server. 없는 유효성 검사 그룹을 지정 하는 경우 유효성 검사 그룹이 사용 됩니다.If no validation group is specified, then no validation group is used.

참고

페이지 유효성 검사의 동작이 변경 되었습니다.The behavior of page validation has changed. ASP.NET 2.0ASP.NET 2.0에서 컨트롤은 더 이상 Page.Validate() 메서드를 호출 하지 않습니다. 대신 Page.Validate(String) 메서드를 사용 합니다.In ASP.NET 2.0ASP.NET 2.0, controls no longer call the Page.Validate() method; they use the Page.Validate(String) method instead. ASP.NET 2.0ASP.NET 2.0 페이지에서 Page.Validate() 메서드를 사용 하는 경우 유효성 검사 그룹이 무시 되 고 모든 컨트롤의 유효성 검사가 수행 됩니다.If you use the Page.Validate() method on an ASP.NET 2.0ASP.NET 2.0 page, validation groups are ignored and all controls are validated.

상속자 참고

Validate() 메서드는 ASP.NET 2.0ASP.NET 2.0에서 사용 되지 않습니다.The Validate() method is not used by ASP.NET 2.0ASP.NET 2.0. ASP.NET 2.0ASP.NET 2.0를 사용 하는 경우 Validate(String) 메서드를 재정의 하 여 페이지 유효성 검사 동작을 변경 합니다.When you are using ASP.NET 2.0ASP.NET 2.0, override the Validate(String) method to change page validation behavior.

추가 정보

Validate(String)

지정된 유효성 검사 그룹의 유효성 검사 컨트롤이 할당된 정보의 유효성을 검사하도록 합니다.Instructs the validation controls in the specified validation group to validate their assigned information.

public:
 virtual void Validate(System::String ^ validationGroup);
public virtual void Validate (string validationGroup);
abstract member Validate : string -> unit
override this.Validate : string -> unit
Public Overridable Sub Validate (validationGroup As String)

매개 변수

validationGroup
String

유효성을 검사할 컨트롤의 유효성 검사 그룹 이름입니다.The validation group name of the controls to validate.

예제

다음 코드 예제에서는 여러 가지 유효성 검사 그룹이 정의 된 시나리오에서 페이지의 Validate 메서드를 호출 합니다.The following code example calls the Validate method on a page in a scenario with several different validation groups defined.

중요

이 예제에는 사용자 입력을 허용하는 텍스트 상자가 있으므로 보안상 위험할 수 있습니다.This example has a text box that accepts user input, which is a potential security threat. 기본적으로 ASP.NET 웹 페이지는 사용자 입력 내용에 스크립트 또는 HTML 요소가 포함되어 있지 않은지 확인합니다.By default, ASP.NET Web pages validate that user input does not include script or HTML elements. 자세한 내용은 Script Exploits Overview를 참조하세요.For more information, see Script Exploits Overview.

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  protected void Button_Click(object sender, EventArgs e)
  {
    switch (((Button)sender).ID)
    {
      case "Button1":
        if (TextBoxValidator1.IsValid)
        {
          Label1.Text = "TextBox validates.";
        }
        else
        {
          Label1.Text = "";
          Label4.Text = "";
        }
        break;
      case "Button2":
        // Must explicitly cause Validate here because 
        // Button2 has CausesValidation set to false.
        Validate("Group2");
        if (CustomValidator.IsValid)
        {
          Label2.Text = "CheckBox validates.";
        }
        else
        {
          Label2.Text = "";
          Label4.Text = "";
        }
        break;
      default:
      Label1.Text = "";
      Label2.Text = "";
      break;
        
    }
  }

  // Custom validator for check box.
  protected void CustomValidator_ServerValidate(object source, ServerValidateEventArgs args)
  {
    args.IsValid = (CheckBox1.Checked == true);
  }

  protected void Page_Load(object sender, EventArgs e)
  {
    if (IsPostBack && Context.Request.Form["__EVENTTARGET"] == "TextBox2")
    {
      // Handle AutoPostBack TextBox.
      Validate("Group3");
      if (Page.IsValid)
      {
        Label3.Text = "AutoPostBack TextBox validates.";
      }
      else
      {
        Label3.Text = "";
        Label4.Text = "";
      }
    }
    
  }

  protected void Button3_Click(object sender, EventArgs e)
  {
    Validate();
    if (Page.IsValid)
      Label4.Text = "All controls valid.";
    else
    {
      Label1.Text = "";
      Label2.Text = "";
      Label3.Text = "";
      Label4.Text = "";
    }

  }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Page Validate</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
      TextBox
      <asp:TextBox ID="TextBox1" ValidationGroup="Group1" runat="server"></asp:TextBox>
      <asp:RequiredFieldValidator Display="Static" ID="TextBoxValidator1" ValidationGroup="Group1" runat="server" ControlToValidate="TextBox1" ErrorMessage="(please enter some text)" EnableClientScript="False"></asp:RequiredFieldValidator>
      <br />
      CheckBox
      <asp:CheckBox ID="CheckBox1" ValidationGroup="Group2" runat="server" />
      <asp:CustomValidator ID="CustomValidator" ValidationGroup="Group2" runat="server" Text="(this option required)" OnServerValidate="CustomValidator_ServerValidate" EnableClientScript="False"></asp:CustomValidator>
      <br />
      <asp:Button ID="Button1" ValidationGroup="Group1" CausesValidation="true" runat="server" Text="Validate Group1 Controls" OnClick="Button_Click" />
      <asp:Label ID="Label1" runat="server"></asp:Label>
      <br />
      <asp:Button ID="Button2" ValidationGroup="Group2" CausesValidation="false" runat="server" Text="Validate Group2 Controls" OnClick="Button_Click" />
      <asp:Label ID="Label2" runat="server"></asp:Label>
      <br />
      <br />
      AutoPostBack TextBox
      <asp:TextBox AutoPostBack="true" ID="TextBox2" ValidationGroup="Group3" runat="server" CausesValidation="true"></asp:TextBox>
      <asp:RequiredFieldValidator ID="TextBoxValidator2" ValidationGroup="Group3" runat="server" ControlToValidate="TextBox2" ErrorMessage="(please enter some text)" EnableClientScript="False"></asp:RequiredFieldValidator>
      <asp:Label ID="Label3" runat="server"></asp:Label>
      <br />
      <br />
      <asp:Button ID="Button3" CausesValidation="true" runat="server" Text="Validate All Controls" OnClick="Button3_Click" />
      <asp:Label ID="Label4" runat="server"></asp:Label>
    
    </div>
    </form>
</body>
</html>
<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  Protected Sub Button_Click(ByVal sender As Object, ByVal e As System.EventArgs)

    Select Case CType(sender, Button).ID
      Case "Button1"
        If TextBoxValidator1.IsValid Then
          Label1.Text = "TextBox validates."
        Else
          Label1.Text = ""
          Label4.Text = ""
        End If
      Case "Button2"
        ' Must explicitly cause Validate here because 
        ' Button2 has CausesValidation set to false.
        Validate("Group2")
        If CustomValidator.IsValid Then
          Label2.Text = "CheckBox validates."
        Else
          Label2.Text = ""
          Label4.Text = ""
        End If
      Case Else
        Label1.Text = ""
        Label2.Text = ""
    End Select

  End Sub
  
  Protected Sub CustomValidator_ServerValidate(ByVal source As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs)
     
    args.IsValid = (CheckBox1.Checked)

  End Sub
  
  Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)

    If (IsPostBack) Then
      
    ' Handle AutoPostBack TextBox.
      Validate("Group3")
      If (Page.IsValid) Then
        Label3.Text = "AutoPostBack TextBox validates."
      Else
        Label3.Text = ""
        Label4.Text = ""
      End If
    End If
    
  End Sub

  Protected Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs)
  
    Validate()
    If (Page.IsValid) Then
      Label4.Text = "All controls valid."
    Else
      Label1.Text = ""
      Label2.Text = ""
      Label3.Text = ""
      Label4.Text = ""
    End If
    
  End Sub
  
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Page Validate</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
      TextBox
      <asp:TextBox ID="TextBox1" ValidationGroup="Group1" runat="server"></asp:TextBox>
      <asp:RequiredFieldValidator Display="Static" ID="TextBoxValidator1" ValidationGroup="Group1" runat="server" ControlToValidate="TextBox1" ErrorMessage="(please enter some text)" EnableClientScript="False"></asp:RequiredFieldValidator>
      <br />
      CheckBox
      <asp:CheckBox ID="CheckBox1" ValidationGroup="Group2" runat="server" />
      <asp:CustomValidator ID="CustomValidator" ValidationGroup="Group2" runat="server" Text="(this option required)" OnServerValidate="CustomValidator_ServerValidate" EnableClientScript="False"></asp:CustomValidator>
      <br />
      <asp:Button ID="Button1" ValidationGroup="Group1" CausesValidation="true" runat="server" Text="Validate Group1 Controls" OnClick="Button_Click" />
      <asp:Label ID="Label1" runat="server"></asp:Label>
      <br />
      <asp:Button ID="Button2" ValidationGroup="Group2" CausesValidation="false" runat="server" Text="Validate Group2 Controls" OnClick="Button_Click" />
      <asp:Label ID="Label2" runat="server"></asp:Label>
      <br />
      <br />
      AutoPostBack TextBox
      <asp:TextBox AutoPostBack="true" ID="TextBox2" ValidationGroup="Group3" runat="server" CausesValidation="true"></asp:TextBox>
      <asp:RequiredFieldValidator ID="TextBoxValidator2" ValidationGroup="Group3" runat="server" ControlToValidate="TextBox2" ErrorMessage="(please enter some text)" EnableClientScript="False"></asp:RequiredFieldValidator>
      <asp:Label ID="Label3" runat="server"></asp:Label>
      <br />
      <br />
      <asp:Button ID="Button3" CausesValidation="true" runat="server" Text="Validate All Controls" OnClick="Button3_Click" />
      <asp:Label ID="Label4" runat="server"></asp:Label>
    
    </div>
    </form>
</body>
</html>

설명

이 메서드는 사용자가 CausesValidation 속성이 true(기본값)로 설정 된 ASP.NET 서버 컨트롤을 클릭할 때 호출 됩니다.This method is invoked when a user clicks any ASP.NET server control that has the CausesValidation property set to true, which is the default. 여기에는 Button, ImageButtonLinkButton 웹 서버 컨트롤, HtmlInputButton, HtmlInputImage, HtmlButton HTML 서버 컨트롤, TextBox, CheckBox, ListControlBulletedList 컨트롤과 같이 서버에 자동으로 다시 게시 될 수 있는 컨트롤이 포함 됩니다.These include the Button, ImageButton, and LinkButton Web server controls, the HtmlInputButton, HtmlInputImage, and HtmlButton HTML server controls, and controls that can automatically post back to the server such as the TextBox, CheckBox, ListControl, and BulletedList controls.

페이지에서 단추 컨트롤에 대 한 유효성 검사를 사용 하지 않도록 설정 하려면 button 컨트롤의 CausesValidation 속성을 false로 설정 합니다.To disable validation for any button control on the page, set the button control's CausesValidation property to false.

Validate 메서드는 지정 된 유효성 검사 그룹의 유효성을 검사 합니다.The Validate method validates the specified validation group. 유효성 검사 그룹에 대 한 Validate 메서드를 호출한 후 IsValid 메서드는 지정 된 유효성 검사 그룹 및 페이지를 서버에 게시 시킨 컨트롤의 유효성 검사 그룹이 모두 유효한 경우에만 true를 반환 합니다.After calling the Validate method on a validation group, the IsValid method will return true only if both the specified validation group and the validation group of the control that caused the page to be posted to the server are valid.

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