'Clear' 不是 'System.Web.UI.WebControls.TextBox' 的成员

Question

我已经尝试在 VB ASP.NET 中使用 Rest 按钮重置 TextBox 中的用户输入 ASP.NET 我的代码在这里-

<body>
    <form id="form1" runat="server">
        <div>
            <asp:Label ID="Label1" runat="server" Text="Label">Input text:</asp:Label><br />
            <asp:TextBox ID="TextBox1" runat="server" ToolTip="Enter your name here!" AutoCompleteType="Disabled"></asp:TextBox><br />
            <asp:Label ID="Label4" runat="server" Text="Label">Output text:</asp:Label><br />
            <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox><br />
            <asp:Button ID="Button1" runat="server" Text="Button" />
            <asp:Button ID="Button2" runat="server" BackColor="#0066FF" Text="Reset" />
            <br />
        </div>
    </form>
</body>

而VB代码是

Public Class WebForm1
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        TextBox1.Attributes.Add("AutoCompleteType", "off")
        TextBox1.Focus()

        'If Not IsPostBack Then
        'TextBox1.Text = "Enter your name here!"
        'End If
    End Sub

    Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim MyString As String = TextBox1.Text
        'Response.Write(MyString)
        TextBox2.Text = MyString
    End Sub

    Protected Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        TextBox2.Clear()
        TextBox1.Clear()
    End Sub
End Class

错误是：

'Clear' is not a member of 'System.Web.UI.WebControls.TextBox' 'Clear' is not a member of 'System.Web.UI.WebControls.TextBox'

Answer 1

A TextBox 不包含方法 Clear。
您可以通过将空字符串值分配给属性 Text 来清除其内容，如下所示。

TextBox2.Text = "";
TextBox1.Text = "";

'Clear' 不是 'System.Web.UI.WebControls.TextBox' 的成员

'Clear' is not a member of 'System.Web.UI.WebControls.TextBox'

vb.net

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