How to Detect When Enter Key is Pressed???

byrne1 · Dec 23, 2002

In the page below I have multiple buttons along with two textboxes with two corresponding search buttons (one for each text box). What I want to do is give the user the ability to press Enter in either textbox and then to process information according to which textbox received the Enter key command (ie, "click" the appropriate search button).

Right now if the user types text in either textbox and presses enter the first button that appears on the form (and not the appropriate search button) is "clicked". Is there a way to do this in ASP.NET? I looked for an OnKeyPressed event in the textbox but there is not one. I also tried multiple forms but that didn't work either.

Any ideas?

<%@ Page Language="vb" AutoEventWireup="false" Codebehind="Main.aspx.vb" Inherits="Payroll_Application.WebForm1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>WebForm1</title>
<meta content="False" name="vs_showGrid">
<meta content="Microsoft Visual Studio.NET 7.0" name="GENERATOR">
<meta content="Visual Basic 7.0" name="CODE_LANGUAGE">
<meta content="JavaScript" name="vs_defaultClientScript">
<meta content="

http://schemas.microsoft.com/intellisense/ie5";

name="vs_targetSchema">

</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<table borderColor="darkblue" cellSpacing="0" cellPadding="5" bgColor="lemonchiffon" border="1">
<tr>
<td align="middle" bgColor="darkblue"><asp:label id="lblTasks" Font-Italic="True" Runat="server" Font-Bold="True" ForeColor="yellow">TASKS</asp:label></td>
<td align="middle" bgColor="darkblue"><asp:label id="Label2" Font-Italic="True" Runat="server" Font-Bold="True" ForeColor="yellow">REPORTS</asp:label></td>
</tr>
<tr>
<td>
<table>
<tr>
<td style="WIDTH: 17px"><font size="-1"><i><asp:button id="Button2" runat="server" Height="21px" Width="88px" Font-Size="XX-Small" Text="New Record" Font-Italic="True"></asp:button></i></font></td>
<TD><asp:button id="Button5" runat="server" Height="21px" Width="104px" Font-Size="XX-Small" Text="Alternate Payment" Font-Italic="True"></asp:button></TD>
<TD><font size="-1"><i><asp:button id="Button1" runat="server" Height="21px" Width="88px" Font-Size="Smaller" Text="Upload Abra" Font-Italic="True"></asp:button></i></font></TD>
</tr>
</table>
</td>
<td>
<table cellPadding="5" border="0">
<tr>
<TD style="WIDTH: 80px"><asp:button id="Button4" runat="server" Height="21px" Font-Size="XX-Small" Text="New Record Report" Font-Italic="True"></asp:button></TD>
<td><font size="-1"><i><asp:button id="Button3" runat="server" Height="21px" Font-Size="Smaller" Text="401K Report" Font-Italic="True"></asp:button></i></font></td>
<TD><font size="-1"><i><asp:button id="Button6" runat="server" Height="21px" Font-Size="Smaller" Text="4th Thursday Report" Font-Italic="True"></asp:button></i></font></TD>
</tr>
</table>
</td>
</tr>
<tr>
<td align="middle" bgColor="darkblue"><asp:label id="Label3" Font-Italic="True" Runat="server" Font-Bold="True" ForeColor="yellow">QUICK LOOKUP</asp:label></td>
<td align="middle" bgColor="darkblue"><asp:label id="Label5" Font-Italic="True" Runat="server" Font-Bold="True" ForeColor="yellow">SEARCH</asp:label></td>
</tr>
<tr>
<TD>ID #:<asp:textbox id="txtIDNbr" Runat="server"></asp:textbox><asp:button id="btnTrialBal" runat="server" Height="21px" Font-Size="XX-Small" Text="Quick Lookup" Font-Italic="True"></asp:button></TD>
<td>
<table cellPadding="10">
<tr>
<td>Find records where
<asp:dropdownlist id="ddlField" Runat="server"></asp:dropdownlist></td>
<td><asp:dropdownlist id="ddlQualifier" Runat="server"></asp:dropdownlist></td>
<td><asp:textbox id="txtSearchVal" Runat="server"></asp:textbox></td>
<td><asp:button id="Button8" Font-Size="XX-Small" Text="Search" Runat="server"></asp:button></td>
</tr>
</table>
</td>
</tr>
</table>
<br>
<br>
<asp:datagrid id="DataGrid1" runat="server" Font-Size="10pt" AlternatingItemStyle-BackColor="#ffffcc" autogeneratecolumns="False" DataKeyField="IDNbr" OnEditCommand="DataGrid_Edit" OnCancelCommand="DataGrid_Cancel" OnUpdateCommand="DataGrid_Update" AllowPaging="True" PageSize="15">
<AlternatingItemStyle BackColor="#FFFFCC"></AlternatingItemStyle>
<Columns>
<asp:HyperLinkColumn DataNavigateUrlField="IDNbr" DataNavigateUrlFormatString="Roundhouse.aspx?IDNbr={0}" DataTextField="IDNbr" HeaderText="ID #" NavigateUrl="Roundhouse.aspx">
<HeaderStyle Font-Bold="True" HorizontalAlign="Center" ForeColor="Yellow" BackColor="DarkBlue"></HeaderStyle>
</asp:HyperLinkColumn>
<asp:BoundColumn DataField="EmplID" HeaderText="Empl ID">
<HeaderStyle Font-Bold="True" HorizontalAlign="Center" ForeColor="Yellow" Width="100px" BackColor="DarkBlue"></HeaderStyle>
</asp:BoundColumn>
<asp:BoundColumn DataField="Name" HeaderText="Empl Name">
<HeaderStyle Font-Bold="True" HorizontalAlign="Center" ForeColor="Yellow" Width="100px" BackColor="DarkBlue"></HeaderStyle>
</asp:BoundColumn>
<asp:TemplateColumn HeaderStyle-BackColor="DarkBlue" HeaderStyle-ForeColor="Yellow" HeaderStyle-Font-Bold="True">
<HeaderTemplate>
Debt Type
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="lblDebtType" Runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.DebtType&quot

%>'>
</asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblEditDebtType" Runat="server"></asp:Label>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderStyle-BackColor="DarkBlue" HeaderStyle-ForeColor="Yellow" HeaderStyle-Font-Bold="True">
<HeaderTemplate>
Payee ID
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="Label1" Runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.PayeeID&quot

%>'>
</asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp

ropDownList ID="ddlPayeeID" Runat="server" AutoPostBack="True" OnSelectedIndexChanged="LookupPayee"></asp

ropDownList>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderStyle-BackColor="DarkBlue" HeaderStyle-ForeColor="Yellow" HeaderStyle-Font-Bold="True">
<HeaderTemplate>
Payee
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="lblPayee" Runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Payee&quot

%>'>
</asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblEditPayee" Runat="server"></asp:Label>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:EditCommandColumn HeaderStyle-BackColor="darkblue" ButtonType="LinkButton" UpdateText="Update" CancelText="Cancel" EditText="Edit"></asp:EditCommandColumn>
<asp:ButtonColumn HeaderStyle-BackColor="darkblue" Text="Delete" CommandName="Delete"></asp:ButtonColumn>
</Columns>
<PagerStyle HorizontalAlign="Center" Mode="NumericPages"></PagerStyle>
</asp:datagrid><br>
</form>
</body>
</HTML>

JohnYingling · Dec 23, 2002

TextBox.AutoPostBack Property
Gets or sets a value indicating whether an automatic postback to the server will occur whenever the user changes the content of the text box.

[Visual Basic]
Overridable Public Property AutoPostBack As Boolean
Property Value
true if an automatic postback to the server will occur whenever the user changes the text in the text box; otherwise, false. The default is false.

Remarks
Use the AutoPostBack property to specify whether an automatic postback to the server will occur whenever the user changes the content of the text box.

Note Postback only occurs when the user presses the ENTER key or when the text box loses focus after the contents are changed.

http://www.VBResizer.com

Forms/Controls Resizing/Tabbing Control

http://www.VBCompare.com

Compare Code (Text)

http://www.VBSortGen.com

Generate Sort Class in VB or VBScript

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How to Detect When Enter Key is Pressed???

byrne1

Programmer

JohnYingling

Programmer

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