Set textbox text value in button action : TextBox « ASP.net Controls « ASP.NET Tutorial






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  3. TextBox
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="MyPage" %>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Label ID="Label1" runat="server" Text="The city name"></asp:Label>
        <asp:Label ID="note" runat="server" Text="Label"></asp:Label>
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" Text="Display" />
    </div>
    </form>
</body>
</html>


File: Default.aspx.vb


Partial Class MyPage
    Inherits System.Web.UI.Page

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        If Me.TextBox1.Text = "" Then
            Me.note.Text = "Please input the city name"
        Else
            Me.note.Text = "The input is:" & Me.TextBox1.Text
        End If

    End Sub
End Class








3.5.TextBox
3.5.1.Important properties, method and event of TextBox control
3.5.2.TextBox can display different types of input fields depending TextMode property
3.5.3.Show AutoComplete
3.5.4.Set the focus to a TextBox
3.5.5.Get input value from asp:textbox (VB.net)
3.5.6.Set textbox text value in button action
3.5.7.asp:TextBox changed event (C#)
3.5.8.Use if statement to check form input data (VB.net)
3.5.9.Bind string value to asp:textBox (VB.net)
3.5.10.Use Cint to convert input value in asp:textbox to integer (VB)
3.5.11.Use Convert.ToInt32 to convert input value in asp:textbox to integer (C#)
3.5.12.Check form input value and report error in case of empty input (VB.net)
3.5.13.Set AutoCompleteType
3.5.14.Convert input in TextBox into decimal
3.5.15.Extrapolate date values from the typed text