Minimum 50 character required for textbox

Posted by Nietajay under ASP.NET on 10/22/2012 | Points: 10 | Views : 4520 | Status : [Member] | Replies : 6

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hi all,

i am using this code

<head runat="server">
<title></title>
<script language="javascript" type="text/javascript">
function MultiLineTextLength(MinimumCount) {
TextBox = document.getElementById('txtMultiline');
if (TextBox.value.length < 0)
{
alert("Please enter the value in textbox");
}
else if (TextBox.value.length < MinimumCount) {
alert("minimum " + MinimumCount + "character required in the textbox");
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtMultiline" runat="server" onchange="MultiLineTextLength(50);"
TextMode="MultiLine"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
</div>
</form>

but its validating only once if i hit button again its not validating ..

http://www.questionsofinterview.com

Ajay Kumar
Web developer

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Posted by: Jayakumars on: 10/23/2012 [Member] [MVP] Bronze | Points: 25

0	hi try to onblur event. Mark as Answer if its helpful to you Kumaraspcode2009@gmail.com Nietajay, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Gow.Net on: 10/23/2012 [Member] Starter | Points: 25

0	try below code <asp:TextBox ID="TextBox1" runat="server" /> <asp:RegularExpressionValidator ID="regExTextBox1" runat="server" ControlToValidate="TextBox1" ErrorMessage="Minimum 10 characters" ValidationExpression=".{10}." /> gowthaman8870226416 Nietajay, if this helps please login to Mark As Answer*. \| Alert Moderator

try below code

<asp:TextBox ID="TextBox1" runat="server"  />

<asp:RegularExpressionValidator ID="regExTextBox1" runat="server" 

   ControlToValidate="TextBox1"

   ErrorMessage="Minimum  10 characters"

   ValidationExpression=".{10}.*" />

gowthaman8870226416

Nietajay, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Ranjeet_8 on: 10/23/2012 [Member] [MVP] Gold | Points: 25

0	write this code on your page <script language="javascript" type="text/javascript"> function MultiLineTextLength(MinimumCount) { TextBox = document.getElementById('txtMultiline'); if (TextBox.value.length < 1) { alert("Please enter the value in textbox"); return false; } else if (TextBox.value.length < MinimumCount) { alert("minimum " + MinimumCount + " character required in the textbox"); return false; } return true; } </script> <asp:TextBox ID="txtMultiline" runat="server" onblur="return MultiLineTextLength(50);" TextMode="MultiLine"></asp:TextBox> <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" OnClientClick="return MultiLineTextLength(50);" /> Nietajay, if this helps please login to Mark As Answer. \| Alert Moderator

write this code on your page


    <script language="javascript" type="text/javascript">

        function MultiLineTextLength(MinimumCount) {

            TextBox = document.getElementById('txtMultiline');

            if (TextBox.value.length < 1) {

                alert("Please enter the value in textbox");

                return false;

            }

            else if (TextBox.value.length < MinimumCount) {

                alert("minimum " + MinimumCount + " character required in the textbox");

                return false;

            }

            return true;

        }

    </script>


        <asp:TextBox ID="txtMultiline" runat="server" onblur="return MultiLineTextLength(50);"

            TextMode="MultiLine"></asp:TextBox>

        <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" OnClientClick="return MultiLineTextLength(50);" />

Nietajay, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Seng2hs on: 10/23/2012 [Member] Starter | Points: 25

0	<script> function CheckLength(ControlValue) { var password = document.getElementById(ControlValue).value; if (password.length < 50) alert('should have miniumum 50 chars'); } </script> <asp:TextBox ID="txtMultiline" runat="server" onblur="CheckLength('txtpassword')" TextMode="MultiLine"></asp:TextBox> Use onBlur to do validation Nietajay, if this helps please login to Mark As Answer. \| Alert Moderator

Nietajay, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Ranjeet_8 on: 10/23/2012 [Member] [MVP] Gold | Points: 25

0	@Nietajay Please Mark As Answer if post will helps you. Nietajay, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Rickeybglr on: 10/23/2012 [Member] Starter | Points: 25

0	try to use regular expresssion for such condition and use onBlur event here is re: /^.{50,}$/ Nietajay, if this helps please login to Mark As Answer. \| Alert Moderator

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