HtmlInputText.Value Eigenschaft

Referenz

Definition

Namespace:: System.Web.UI.HtmlControls

Assembly:: System.Web.dll

Wichtig

Einige Informationen beziehen sich auf Vorabversionen, die vor dem Release ggf. grundlegend überarbeitet werden. Microsoft übernimmt hinsichtlich der hier bereitgestellten Informationen keine Gewährleistungen, seien sie ausdrücklich oder konkludent.

Ruft den Inhalt des Textfelds ab oder legt diesen fest.

public:
 virtual property System::String ^ Value { System::String ^ get(); void set(System::String ^ value); };

public override string Value { get; set; }

member this.Value : string with get, set

Public Overrides Property Value As String

Eigenschaftswert

String

Der im Textfeld enthaltene Text. Der Standardwert ist eine leere Zeichenfolge ("").

Beispiele

Im folgenden Codebeispiel wird veranschaulicht, wie die Value -Eigenschaft verwendet wird, um den vom Benutzer in das Textfeld eingegebenen Text programmgesteuert zu bestimmen.

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

<!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 AddButton_Click(Object sender, EventArgs e)
    {
        int Answer;

        Answer = Convert.ToInt32(Value1.Value) + 
            Convert.ToInt32(Value2.Value);
        AnswerMessage.InnerHtml = Answer.ToString();

    }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" > 
<head>
    <title> HtmlInputText Example </title>
</head>
<body>
<form id="form1" runat="server">
    <div>

    <h3> HtmlInputText Example </h3>

    <table>
        <tr>
            <td colspan="5">

               Enter integer values into the text boxes. <br />
               Click the Add button to add the two values. <br />
               Click the Reset button to reset the text boxes.

            </td>
       </tr>
       <tr>
            <td colspan="5">
                 

            </td>
       </tr>
       <tr align="center">
            <td>

               <input id="Value1"
                      type="Text"
                      size="2"
                      maxlength="3"
                      value="1"
                      runat="server"/>

            </td>
            <td>
                + 
            </td>
            <td>

               <input id="Value2"
                      type="Text"
                      size="2"
                      maxlength="3"
                      value="1"
                      runat="server"/>

            </td>
            <td>
                =
            </td>
            <td>
               
               <span id="AnswerMessage"
                     runat="server"/>

            </td>
        </tr>
        <tr>
            <td colspan="2">

               <asp:RequiredFieldValidator
                    ID="Value1RequiredValidator"
                    ControlToValidate="Value1"
                    ErrorMessage="Please enter a value.<br />"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value1MinCompareValidator"
                    ControlToValidate="Value1"
                    Operator="LessThan"
                    Type="Integer"
                    ValueToCompare="100"
                    ErrorMessage="Please enter an integer less than 100.<br />"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value1MaxCompareValidator"
                    ControlToValidate="Value1"
                    Operator="GreaterThan"
                    Type="Integer"
                    ValueToCompare="0"
                    ErrorMessage="Please enter an integer greater than 0.<br />"
                    Display="Dynamic"
                    runat="server"/>

            </td>
            <td colspan="2">

               <asp:RequiredFieldValidator
                    ID="Value2RequiredValidator"
                    ControlToValidate="Value2"
                    ErrorMessage="Please enter a value.<br />"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value2MinCompareValidator"
                    ControlToValidate="Value2"
                    Operator="LessThan"
                    Type="Integer"
                    ValueToCompare="100"
                    ErrorMessage="Please enter an integer less than 100.<br />"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value2MaxCompareValidator"
                    ControlToValidate="Value2"
                    Operator="GreaterThan"
                    Type="Integer"
                    ValueToCompare="0"
                    ErrorMessage="Please enter an integer greater than 0.<br />"
                    Display="Dynamic"
                    runat="server"/>

            </td>
            <td>
                 
            </td>
        </tr>
        <tr align="center">
            <td colspan="4">

                <input type="Submit"
                      name="AddButton"
                      value="Add"
                      onserverclick="AddButton_Click"
                      runat="server"/>

                   

                <input type="Reset"
                      name="AddButton"
                      value="Reset"
                      runat="server"/>

            </td>
            <td>
                 
            </td>
        </tr>
    </table>

    </div>
</form>
</body>
</html>

<%@ Page Language="VB" AutoEventWireup="True" %>

<!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 AddButton_Click(sender As Object, e As EventArgs)

        Dim Answer As Integer

        Answer = Convert.ToInt32(Value1.Value) + Convert.ToInt32(Value2.Value)
        AnswerMessage.InnerHtml = Answer.ToString()

    End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" > 
<head>
    <title> HtmlInputText Example </title>
</head>
<body>
<form id="form1" runat="server">
    <div>

    <h3> HtmlInputText Example </h3>

    <table>
        <tr>
            <td colspan="5">

               Enter integer values into the text boxes. <br />
               Click the Add button to add the two values. <br />
               Click the Reset button to reset the text boxes.

            </td>
       </tr>
       <tr>
            <td colspan="5">
                 

            </td>
       </tr>
       <tr align="center">
            <td>

               <input id="Value1"
                      type="Text"
                      size="2"
                      maxlength="3"
                      value="1"
                      runat="server"/>

            </td>
            <td>
                + 
            </td>
            <td>

               <input id="Value2"
                      type="Text"
                      size="2"
                      maxlength="3"
                      value="1"
                      runat="server"/>

            </td>
            <td>
                =
            </td>
            <td>
               
               <span id="AnswerMessage"
                     runat="server"/>

            </td>
        </tr>
        <tr>
            <td colspan="2">

               <asp:RequiredFieldValidator
                    ID="Value1RequiredValidator"
                    ControlToValidate="Value1"
                    ErrorMessage="Please enter a value.<br />"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value1MinCompareValidator"
                    ControlToValidate="Value1"
                    Operator="LessThan"
                    Type="Integer"
                    ValueToCompare="100"
                    ErrorMessage="Please enter an integer less than 100.<br />"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value1MaxCompareValidator"
                    ControlToValidate="Value1"
                    Operator="GreaterThan"
                    Type="Integer"
                    ValueToCompare="0"
                    ErrorMessage="Please enter an integer greater than 0.<br />"
                    Display="Dynamic"
                    runat="server"/>

            </td>
            <td colspan="2">

               <asp:RequiredFieldValidator
                    ID="Value2RequiredValidator"
                    ControlToValidate="Value2"
                    ErrorMessage="Please enter a value.<br />"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value2MinCompareValidator"
                    ControlToValidate="Value2"
                    Operator="LessThan"
                    Type="Integer"
                    ValueToCompare="100"
                    ErrorMessage="Please enter an integer less than 100.<br />"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value2MaxCompareValidator"
                    ControlToValidate="Value2"
                    Operator="GreaterThan"
                    Type="Integer"
                    ValueToCompare="0"
                    ErrorMessage="Please enter an integer greater than 0.<br />"
                    Display="Dynamic"
                    runat="server"/>

            </td>
            <td>
                 
            </td>
        </tr>
        <tr align="center">
            <td colspan="4">

                <input type="Submit"
                      name="AddButton"
                      value="Add"
                      onserverclick="AddButton_Click"
                      runat="server"/>

                   

                <input type="Reset"
                      name="AddButton"
                      value="Reset"
                      runat="server"/>

            </td>
            <td>
                 
            </td>
        </tr>
    </table>

    </div>
</form>
</body>
</html>

Hinweise

Verwenden Sie die Value -Eigenschaft, um den vom Benutzer in das Textfeld eingegebenen Text programmgesteuert zu bestimmen. Sie können diese Eigenschaft auch verwenden, um Standardtext für das Textfeld bereitzustellen.

Hinweis

Wenn Sie einen Wert für ein password Typsteuerelement HtmlInputText angeben, wird dieser Wert nicht im Textfeld angezeigt.

Gilt für:

Weitere Informationen

HtmlInputPassword

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