Web Forms :: Validate All Of The Inputs Before Saving And Updating?
Mar 17, 2010
I am validator controls to validate all of the my inout controls.
My requirement is i need to validate all of the inputs before saving and updating. I have no problem in that because by default all of the input conrols are validating based on the validation rule.
I have the Copu flag option in dropdown, when i am in the the Copy option i dont need to validate some of the input controls or dont need to validate all of the input controls when i clicked Save or Update button.
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Dec 13, 2010
I am trying to validate dynamically created text inputs. I have been following tutorials about how to do jquery validation using the validation library, but I cannot seem to get this to work.
Heres the code where I generate the inputs.
[Code]....
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Sep 2, 2010
I need to save all the inputs to my MS SQL DB from the ASP.Net page inputs...
When i save this information, It has to check whether exists or not...
If its exists then it shows The Customer already exists..
If it does not exists it needs to show like , Thank You for register with us.. , and after 5 secs it automatically redirect to some other pages...
This all can be done under update panel...
Here i am using,
tr_exists.InnerHtml = "Thank you for register with us..";
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Jan 9, 2011
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Sep 24, 2010
I have overridden the following methods:
LoadPageStateFromPersistenceMedium()
SavePageStateToPersistenceMedium(object viewState)
in a class that my page derives from, so that the viewstate can be stored in DB.
Now, on page_load of my page, I am checking what control caused a postback & based on that I am forcing execution of 2 button click events in a row (by overloading those click events & calling them explicitely), but the behaviour I want is as if the execution of those 2 button click events went through the regular page life cycle.
Here is the sequence of events that happen in typical page life cycle & notice I want to alter behaviour at step 4 (on load):
1) Initialization
2) LoadViewStateData (here the viewstate is loaded from my database using the overridden LoadPageStateFromPersistenceMedium)
3) LoadPostBackData
4) Load
Here, I would like to force execution of 2 button_click events based on whether a particular control posted back.
4.1) imgBtnPrev5_Click()
4.2) imgBtnPrev4_Click()
Now, when the imgBtnPrev5_Click() is executed, the viewstate is already loaded, so we are fine. But after execution of imgBtnPrev5_Click(), I would like to update the viewstate object in memory & then call the overridden SavePageStateToPersistenceMedium (by passing that updated viewstate object as its parameter) and then before execution of imgBtnPrev4_Click(), I would like to call the overridden LoadPageStateFromPersistenceMedium.
5) RaisePostBackEvent
6) SaveViewState
7) Render
My question is, how do I update the "viewstate" object of the page - that is passed to SavePageStateToPersistenceMedium with the changes made to the controls in imgBtnPrev5_Click()?
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Mar 30, 2010
I'm setting up a radiobuttonlist where registrants to my site will be telling me how they found out about my site. What is the best way to store those answers in an MS SQL database?
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Feb 20, 2010
I have a requirement that user can input HTML tags in the ASP.NET TextBox. The value of the textbox will be saved in the database and then we need to show it
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Dec 30, 2010
I've written a 'register' aspx page and it works fine. Except, while testing it, if I start typing a name in the textbox, and a name with the same 1st letter already has been typed in there before, it keeps showing of and I would like it not to. Its like the autocomplet option of a combobox in winforms VB.
to turn of this feature so no one can see what a previous user has typed in the textboxes?
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Jul 27, 2010
I am trying to update the database with the edited data. However, it did not manage to read the edited data from the textbox. It returned the retrieve data that I have done in the Page_Load instead. Is there any part of the code that I have written wrongly? I did manage not to use <EditItemTemplate> in my past project and manage to update the database with the same logic.
<aspx>
<!-- This DataList is created to view Personal Information -->
<asp:DataList ID="personal_dl" runat="server"> <ItemTemplate>
<table> <tr> <td style="width: 100px; text-align: left;">
<asp:Label ID="first_lbl" runat="server" ForeColor="Black" Font-Size="11px" Text="First:"></asp:Label></td> <td style="width: 350px">
<asp:TextBox ID="first_tb" runat="server" Width="341px" Font-Size="11px" Text='<%# Eval("FIRST") %>'> </asp:TextBox> </td> </tr> <tr>
<td style="width: 100px; text-align: left">
<asp:Label ID="name_lbl" runat="server" Font-Size="11px" ForeColor="Black" Text="Name:"></asp:Label> </td> <td style="width: 350px">
<asp:TextBox ID="name_tb" runat="server" Width="341px" Font-Size="11px" Text='<%# Eval("NAME") %>'> </asp:TextBox> </td> </tr> <tr> <td style="width: 100px; text-align: left;">
<asp:Label ID="id_lbl" runat="server" ForeColor="Black" Font-Size="11px" Text="ID:">
</asp:Label> </td> <td style="width: 350px">
<asp:TextBox ID="id_tb" runat="server" Width="341px" Font-Size="11px" Text='<%# Eval("ID") %>'> </asp:TextBox> </td> </tr> <tr> <td style="width: 100px; text-align: left;">
<asp:Label ID="contact_lbl" runat="server" ForeColor="Black" Font-Size="11px" Text="Contact No.:"> </asp:Label> </td> <td style="width: 350px">
<asp:TextBox ID="contact_tb" runat="server" Width="341px" Font-Size="11px" Text='<%# Eval("TELEPHONE_HP") %>'> </asp:TextBox> </td> </tr> <tr> <td style="width: 100px; text-align: left;"> <asp:Label ID="add_lbl" runat="server" ForeColor="Black" Font-Size="11px" Text="Address:"> </asp:Label> </td> <td style="width: 350px">
<asp:TextBox ID="add_tb" runat="server" Width="341px" Font-Size="11px" Text='<%# Eval("ADDRESS") %>'> </asp:TextBox> </td> </tr> </table> </ItemTemplate> </asp:DataList>
<br /> <div style="text-align: center; color: Red; width: 460px;">
<asp:Label ID="errorMsg_lbl" runat="server" />
<asp:Button ID="edit_btn" runat="server" Text="Update" />
<asp:Button ID="createBtn" runat="server" Text="Insert" /></div>
<aspx.vb>
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'display information in datalist
Dim login As String = Session("login")
Dim id As String = Session("id")
bindDataList(personal_dl, getPersonalContent(login, id))
'display necessary DataList
personal_dl.Visible = True
'declare fields
Dim i As Integer
Dim first_tb, name_tb, id_tb, contact_tb, add_tb As New TextBox
For i = 0 To personal_dl.Items.Count - 1
first_tb = personal_dl.Items(i).FindControl("first_tb")
name_tb = personal_dl.Items(i).FindControl("name_tb")
id_tb = personal_dl.Items(i).FindControl("id_tb")
contact_tb = personal_dl.Items(i).FindControl("contact_tb")
add_tb = personal_dl.Items(i).FindControl("add_tb")
'set fields as ReadOnly - cannot edit
first_tb.ReadOnly = False name_tb.ReadOnly = False id_tb.ReadOnly = False
contact_tb.ReadOnly = False add_tb.ReadOnly = False Next
End Sub
Protected Sub edit_btn_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles edit_btn.Click 'declare fields
Dim i As Integer Dim first_tb, name_tb, id_tb, contact_tb, add_tb As New TextBox
Dim id As String = Session("id")
For i = 0 To personal_dl.Items.Count - 1
first_tb = personal_dl.Items(i).FindControl("first_tb")
name_tb = personal_dl.Items(i).FindControl("name_tb")
id_tb = personal_dl.Items(i).FindControl("id_tb")
contact_tb = personal_dl.Items(i).FindControl("contact_tb")
add_tb = personal_dl.Items(i).FindControl("add_tb")
Next Dim myConnection As OleDbConnection = dbConnection()
Dim cmd As New OleDbCommand
Dim sqlStatement As String
Dim condition As String
condition = "UPDATE staff " + _
"SET ((FIRST= @FIRST), (NAME = @NAME), (ID= @ID), (TELEPHONE_NO = @CONTACT_NO), (ADDRESS = @ADDRESS)) " + _
"WHERE (ID= @id)" sqlStatement = condition cmd.CommandText = sqlStatement
cmd.CommandType = CommandType.Text cmd.Parameters.AddWithValue("@FIRST", first_tb)
cmd.Parameters.AddWithValue("@NAME", name_tb)
cmd.Parameters.AddWithValue("@ID", id_tb)
cmd.Parameters.AddWithValue("@TELEPHONE_NO", contact_tb)
cmd.Parameters.AddWithValue("@ADDRESS", add_tb)
cmd.Parameters.AddWithValue("@ID", id)
cmd.Connection = myConnection
Try myConnection.Open()
cmd.ExecuteNonQuery() Catch ex As Exception
Finally If myConnection.State = ConnectionState.Open Then
myConnection.Close()
End If
End Try
'display information in datalist
Dim login As String = Session("login")
bindDataList(personal_dl, getPersonalContent(login, id))
End Sub
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Jan 25, 2011
I am trying to find a way to limit the inputs on a webpage to a variety of different sequences, and although I have worked through the regular expression library, I am still confused on how to allow decimal places and a maximum value. I initially used rangevalidators, but as you know, these only limit the inputs to a range, and have no control over the decimal places entered. A variety of limits i have been asked to implement are:
1. Range 0-45, 0 decimal places
2. Range 0-20, 2 decimal places
3. Range 16-65, 0 decimal places
4. Range 0-99, 2 decimal places
5. Range 0-1500000, 0 decimal places
6 Range 0-200, 1 decimal place
For 1 and 5 respectively, I have used
([0-9]|[0-9]d|45)$
([0-9]|[0-9]d|1500000)$
but want to be sure that I have understood the pattern correctly. How do I then go about creating a pattern for the other examples?
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Oct 22, 2010
I have a HTML.BeginForm() to change user's data (email, password etc) but I want to separate the contents at the same page, I mean that there will be:
MainContent with submit button and also
- a HTML.BeginForm() with fields to change password + submit button
- a HTML.BeginForm() with fields to change email + submit button
the thing is, I want to allow user to change his password without sending all form data to the controller, only data from the password fields.That View inherits from my buisness object with properties (Login, Password, Email etc)
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Feb 4, 2011
do have a very particular question and if you want to answer it go straight to the end. But I do welcome comments and advices hence the lengthy post. we deal with a lot of forms and some of these forms are quite lengthy and have many fields. We also have a requirement - in addition to top level fields - to be able to have variable number of repating rows - as we call them. For example, let's think of a customer which has name, surname and age while it can have zero or many addresses (say 0 to 10) so the user must be able to add or remove contacts from the form while filling it in.
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Sep 29, 2010
I have upto 16 calculators(I mean 16 stored procedures) in one database.How do I log all inputs for each calculater(each stored proc)?.Most of the variables are not populated in the output table so it became hard to reproduce.The variables are not consistant across all the 16 procs . Do I need to set up new table for these inputs?
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Jan 4, 2011
With the following htlm:
<html>
<body>
<form action="#">
<p><input type="text"></input></p>
</form>
</body>
</html>
[code]...
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Oct 26, 2010
How can I change
<telerik:RadTextBox runat="server" ID="txtUserName" Width="238px" EmptyMessage="Lütfen 'Kullanıcı Adı' nızı giriniz.">
</telerik:RadTextBox>
in normal asp input form because in teleriks format I can not use
onFocus="javascript:toggleMsg('msg-2')" or
onBlur="javascript:toggleMsg('msg-2')
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Jun 18, 2010
I'm using the css sprite technique to hold all the buttons on the site in one PNG Image.
This technique works fine on all browsers on your normal Style Buttons, however for IE 7/8 it shows a border and a red x on any input where I use a css class to define the image. This technique works fine for Firefox. Am I missing something here ?
HTML:[URL]
CSS:[URL]
Comparison:[URL]
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Apr 21, 2010
Whats the easiest method of hiding all buttons but not all inputs (say drop down lists, text input boxes) in CSS that works with IE6. The purpose of this CSS file is for printing (using the media="Print" tag in the HTML).
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Jun 4, 2010
How can I do paging with datalist if that datalist is populated with inputs coming from a querystring?
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Sep 7, 2010
I have a calendar control where a user selects a date and then inputs info into a FormView control. Underneath the FormView is a GridView that shows all data from the SelectedDate on the calendar control. However, when the date is selected, all the information from the table ( from all dates ) is displayed.
[Code]....
And the code behind:
[Code]....
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Jan 31, 2011
In my application, there is only a login page and a report page. When the user enters his login credentials he will be redirected from the login page to the reports page. I am using forms authentication for this purpose.
On the reports page I will be displaying various reports (using Telerik reporting) based on user inputs for various fields.
Now here is the funnier part; My application works correctly in all browsers (including Safari on windows platform). But when I open it in an Ipad I am getting the below error,
"Potentially dangerous request.form value was detected from the client " This error occurs when the forms authentication redirection happens from the login page to the reports page.
I tried a variety of solutions like setting ValidateRequest="false" & requestValidationMode="2.0" , but none of them helped. I also tried removing the forms authentication and that also didn't
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Jan 5, 2011
I am using Asp.net and requirement specifies i use html input to post files to server rather than asp:fileupload.[ Reason : Add more html input file controls similar to CPanel file manager.(i.e) clicking on link adds another file input from which user can select another file*.But when ever i post back Request Files collection is always empty.*
HTML FORM:
<form method="post" enctype="multipart/form-data" action="documents.aspx">
<div>
<input type="file" name="attachment" id="attachment" onchange="validate(this)" />
<span class="none">Filename should be within (1-25) letters long. Can Contain only letters
& numbers</span>
<div id="moreUploads">
</div>
<div id="moreUploadsLink" style="display: none;">
<a href="javascript:addFileInput();">Attach another File</a></div>
<input type="submit" id="btnSubmit" />
</div>
</form>
Javascript:
var upload_number = 2;function addFileInput() {
try {
var fileUpload = document.getElementById("attachment");
var elemSpan = nextElement(fileUpload).cloneNode(true);
var elemDiv = document.getElementById("moreUploads");
var d = document.createElement("div");
var file = document.createElement("input");
file.setAttribute("type", "file");
file.setAttribute("id", "attachment" + upload_number);
file.setAttribute("onchange", "validate(this)");
d.appendChild(file);
d.appendChild(elemSpan);
elemDiv.appendChild(d);
upload_number++;
} catch (err) { alert(err);}}
the validate(this) is a function that validates file types on client.When validation succeeds then the link to add more file inputs is enabled. Could someone throw somelight on this.
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Sep 17, 2010
So I sometimes use app_offline.htm to take an app offline while I upload a new version.However, while I am in the process of uploading larger dll's, I get the yellow error-screen saying the dll could not be loaded.This seems to be out of sync with my expectations of what app_offline.htm does (stops the app entirely), and also provides the users with errors in stead of the nice app_offline.htm I put up.Am I doing something wrong or is this behavior by design?
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Oct 25, 2010
I'm trying out the jQuery Validation plugin jQuery Docs Here is the markup of my form:
<% using (Html.BeginForm("action", "contoller", null, FormMethod.Post, new { id = "sxform" })){%>
<div id="manifest">
Manifest Option:<br />
<%= Html.DropDownList("docid", ViewData["manifests"] as SelectList, new { @class = "required" })%>
</div>
<div id="release">
Release Version:<br />
<%= Html.TextBox("release", null, new { @class = "required" })%>
</div>
<div id="locale">
Localization:<br />
<%= Html.DropDownList("localization", ViewData["localizations"] as SelectList, new { @class = "required" })%>
</div>
<div id="label">
Label:<br />
<%= Html.TextBox("label", null, new { @class = "required" })%>
</div>
<div id="session">
Session ID (optional):<br />
<%= Html.TextBox("sessionInput", null, new { @class = "required" })%>
</div>
<div id="submit"><input type="submit" value="Build" /></div>
<% } %>
JS:
$(document).ready(function(){
$("#sxform").validate();
});
I am using MS MVC HTML Helpers to render this form. The resulting markup looks fine. IE each input and selection element contains the attribute 'class' with the value 'required'. When I submit this form the validation does noting.
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Mar 6, 2011
I would like to know how to use jQuery's Validate plugin to add rules to validate controls in ASCX custom user control?
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Nov 23, 2010
To prevent my application from crashing with the error "A potentially dangerous Request.Form value was detected...", I just turned page validation off. I want to revisit this and solve it correctly. Is there a good strategy for this? If people are entering '<' and '>', I think the only way to save their data is to encode it via Javacript. I have tried catching it in the code-behind, but it becomes too late. I am thinking of inheriting the textbox and auto encode/decode the input with client scripts. I also have to think of all the angle brackets that are already saved in my database.
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