C# - MaxLength Property For Textbox In Code Behind?
Nov 30, 2010I am trying to use MaxLength function for the textbox in code behind.
How is it possible for textbox txttabname here, which is created dynamically.
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I am trying to use MaxLength function for the textbox in code behind.
How is it possible for textbox txttabname here, which is created dynamically.
[Code]....
I have quite a few text area's on my page and am wanting to limit the number of characters for each one. However each one should be able to have its own maxlength (i.e. one could be 20 characters and the other could be 100 characters). My validation on the page is all done using custom validation as the built in validation of .NET is not extensible enough for me to display my validation errors how I want to display them. So this is what im wanting to do:
Make a custom validatorPass a MaxLength value from the custom validator into the javascript function, this value must also be accessible from the code behindI can then run client side and server side validation on each textbox control. The problem I am having is passing a MaxLength value to client side script and to server side. Is there a property on custom validators which I can use to pass values around? For instance in Javascript I would want the value of the MaxLength and also the id of the Div which will show the characters remaining, and server side I would need to know the MaxLength. I have done lots of research on this and cannot seem to find an answer.
Is there a way I can limit the width of a textbox to be equal to the MaxLength property? In my case right now, the textbox control is placed in a table cell as in this snippet:
<td class=TDSmallerBold style="width:90%">
<asp:textbox id="txtTitle" runat="server"
CausesValidation="true"
Text="Type a title here..be concise but descriptive. Include price."
ToolTip="Describe the item with a short pithy title (most important keywords first). Include the price. The title you provide here will be the primary text found by search engines that index Zipeee content."
MaxLength="60"
Width="100%">
</asp:textbox>
(I know I should not use HTML tables to control layout..another subject for sure) but is there a way to constrain the actual width to the max number of characters allowed in the typed box?
How to assign MaxLength Property to BoundField column in DetailsView COntrol without Converting into TemplateField.
View 3 RepliesIf I set the maxlength field for a textbox, and have the textmode set to SingleLine, the amount of text is limited to the specified number of characters. If you change TextMode to MultiLine, the number of characters is no longer constrained.
View 2 RepliesI used below code for textbox that users can enter 30character in text box
<asp:TextBox ID="txttopic" runat="server" MaxLength="30"></asp:TextBox>
It worked correctly and now I want use MaxLenght for textbox with TextMode="MultiLine" like below
<asp:TextBox ID="txtmatn" runat="server" TextMode="MultiLine" MaxLength="100"></asp:TextBox>
But it didn't worked for above TextBox... What should I do for this Textbox ?
I am trying to use a property from the code-behind to populate a textbox instead of using in the code-behind textbox.text=. I am using vb.net. Here is the code for the aspx page:
<asp:Content ID="Content2" ContentPlaceHolderID="MainContentPlaceHolder" runat="server">
<asp:TextBox runat="server" ID="roleTextBox" Text='<%# CurrentRole.Name%>'></asp:TextBox>
</asp:Content>
Here is the code behind code:
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When I run the page the text box is empty.
I have set the MaxLength in the textbox and don't know why I can type more than the max length characters in the textbox. Do you know why? ....
View 9 RepliesI have a radGrid on the page with the "Add New Record" button. When I click the "Add New Record" button, a textbox appears above each column that allows me to enter values. I want to limit the number of characters that can be entered in the textbox. How do I set the MaxLength of those textboxes
View 1 Repliessetting maxlength of asp.net textbox maxlength set thr' properties not working
View 16 RepliesWhen textbox textmode properties declare in multiline.i.e time maxlength properties not working..
View 1 RepliesI have a textbox I have set the Maxlength to it. It works with TextMode SingleLine but not when TextBox is Multiline
<asp:TextBox ID="txtDetails" runat="server" MaxLength = "100" TextMode = "200"></asp:TextBox>
I want to set maxlength 1000 of the multilne textbox and I want to display how many remaining char after enterin in texbox show in lable
View 1 RepliesI want to set the proper MaxLength on the Textbox in the BoundField
How do I get the DataField from the ContainingField in order to know which field the column binds to (i.e., BoundField).
The Client-Side web form is located at [URL]
Sample snappet reads:
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I need to set a style property of an element to the value returned from a code-behind property. I have done this in the past, but it now seems everything I try fails. I get an error telling me that the literal is not formed correctly.These are some of the arrangements I have tried:
[Code]....
I want to bind an ObjectDataSource to a property in my asp page and I want to do it in the page's aspx code, not in code-behind. I've already done it in code-behind, as follows:
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I'd prefer to get rid of the ugly code-behind and just do this in mark-up. Something like
[Code]....
This gives me a run-time error: Cannot create an object of type 'System.Object' from its string representation 'SelectedBook' for the 'DataSource' property.Is there a way of doing this declaratively and not in code-behind? Further, what if what I want is to actually use a child property of the property in question? For example, if my Book object has a ReaderComments collection, can I databind to it decaratively in the aspx mark-up?
I have a number of radio buttons on my page. When one is selected, I wish for certain controls to be made visible/invisible.
Can anyone tell me the property to code in VB behind code?
I have an asp:textbox. On textchange of this textbox, I'm doing validation for the text entered. If the text entered is incorrect, I want to flash a message of incorrect text entered. Please re-enter. How can I do this in ASP?
View 2 RepliesI have a case that I need to set the Text property for an asp label in the aspx page not from code behind. More exactly, I need to set a value to asp control in aspx page and this value is set by a property in the same page code behind.
so I need to use an expression to do that like:
<asp:Label Text="<%= MyProperty %>" ..../>
I use:
<%= MyProperty %> doesn't work.
<%# MyProperty %> doesn't also.
I'm trying to add a textbox field to my web form to use as a password. In the textbox properties, I don't see the "PasswordChar" property. Do I need to use a different control for this?
View 1 RepliesI have created a custom text box with property "key"(ASP.NET C#).I want to get the value of this property "key" using java script.How can I do this?
View 2 RepliesI would like to do this: Dim str As String = class.isGuest("yes") but it won't work.
Public Property IsGuest(ByVal guestStatus As String) As String
Get
Dim guestCookie As New HttpCookie("g")
For Each key As String In Context.Response.Cookies.Keys
If key = MYACCOUNT_SESSION_COOKIE_NAME Then
guestCookie = Context.Response.Cookies.Item(MYACCOUNT_SESSION_COOKIE_NAME)
Exit For
End If
Next
guestCookie.Value = guestStatus
Response.Cookies.Add(guestCookie)
Return guestCookie.Value.ToString
End Get
Set(ByVal value As String)
Dim guestCookie As New HttpCookie("g")
guestCookie.Value = value
Response.Cookies.Add(guestCookie)
End Set
End Property
The max length property are not work in the Asp.Net TextBox control.
<asp:textbox ID="txComment" MaxLength="20" Width="90%" Columns ="5" Height="100px" TextMode ="MultiLine" runat="server"></asp:textbox>
how can I use get set property to control the values in textbox
View 3 RepliesIs there a way to change the properties on the textboxes that are outputed by the TextBoxFor method in MVC 2 RC?
View 9 Replies