HtmlInputText Control
Creates a server-side control that maps to the <input type=text> and <input type=password> HTML elements and allows you to create a single line text box to receive user input.
<input type=text | password
id="programmaticID"
maxlength="max#ofcharacters"
size="widthoftextbox"
value="defaulttextboxcontents"
runat="server" >
Remarks
Use the HtmlInputText control to run server code against the <input type=text> and <input type=password> HTML elements. As with standard HTML, these controls can be used to enter user names and passwords in HTML forms.
Note When the Type property is set to password, your entry is masked in the text box.
You can use this control in conjunction with the HtmlInputButton, HtmlInputImage, or HtmlButton control to process user input on the server. You can control the number of characters that can be entered, the width, and the contents of the control by using the MaxLength, Size, and Value properties, respectively.
Note This control does not require a closing tag.
Example
The following example demonstrates how use the HtmlInputText control to get user input.
<%@ Page Language="VB" AutoEventWireup="True" %>
<html>
<head>
<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>
</head>
<body>
<form runat="server">
<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 an 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 an 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>
</form>
</body>
</html>
[C#]
<%@ Page Language="C#" AutoEventWireup="True" %>
<html>
<head>
<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>
</head>
<body>
<form runat="server">
<h3> HtmlInputButton 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 an 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 an 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>
</form>
</body>
</html>
See Also
ASP.NET Syntax for HTML Controls | HtmlInputText Class | HtmlInputButton Control | HtmlInputControl Class