.net - Causes Of Unable To Validate Data
Aug 26, 2010
I'm getting "Unable to validate data" in a webfarm scenario but not all the time. I'm getting it about on AVERAGE 1x or 2x per hour but fairly random. All of the causes of this error that I know of are list below:achinekey in the machine.config (or web.config) not set the same in a web farm scenario. Mine are set the same in the machine.config.A page is submitted after a server recycle and the machinekey is set to auto. I'm using a static key which should
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Oct 15, 2010
when i click on any control on page following error occur.SOURCE: System.Web MESSAGE: Unable to validate data....
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Jul 6, 2010
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Mar 10, 2011
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Feb 16, 2010
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Apr 16, 2010
I have several websites which get approximately 3000 pageviews in total per day, and I get this viewstate error roughly 5-10 times per day, caught in global.asax:
System.Web.HttpException: Unable to validate data. at System.Web.Configuration.MachineKeySection.GetDecodedData(Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Int32& dataLength) at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString
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Feb 9, 2011
I have written the following code for login:
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if (txtPassword.Text.Trim() == string.Empty)
[code]...
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Oct 29, 2010
Server Error in '/'Application. Unable to validate data. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.HttpException: Unable to validate data.Source Error
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Mar 18, 2010
I'm trying to validate that a GridView logated in one of the steps of the Wizard Control is populated by the user before the Next button is clicked. What I mean is that I need to block Next (or Prev) button until the user populates a gridview, once the gridview has at least one element then enable the (Next/Prev) buttons. How can I enable/disable Next/Prev buttons within a specific step?.
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Mar 23, 2010
I am getting the error "Unable to validate Data" on my ASP.NET 3.5 website. Replication Steps:Open the Default.aspx web page (it just has a few asp.net controls) and leave it idle for approx 1hr.Click on a button (server side standard asp.net button) on the page and we get the error.After going through a couple of blogs, I've got the following suggestionsSome suggested the use of specifying the machine key. But is that really required considering that my website is hosted on a single application server (no web farm scenario). Not sure if I should be trying this.
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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">
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</div>
<div id="release">
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<%= 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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Sep 13, 2010
I am trying to validate data using the OnItemUpdating event on a FormView control. The event is fired when I click the update button but
e.OldValues["txtDate2"].ToString() in the function returns a null value. What am I doing wrong here ?
ValidateForm(Object sender, FormViewUpdateEventArgs e)
{
string val = e.OldValues["txtDate2"].ToString();
}
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Nov 22, 2015
[URL]
with respect to above link, how to implement javascript validation on submit button outside gridview.
suppose if user doesn't select one of the any group or type it show alert message. it must select at least one row from each group.
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Mar 18, 2011
I had a gridview with checkbox to select records for generate report.
There are column "From Date", "To Date", "Applicant"...
How can I validate the selected row (checked checkbox) are on same date (From Date) ?
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Nov 10, 2010
There are two pages in a survey project. A submit button is in pageB. Before cliking submit button, I need to add code in pageB to validate data in pageA.
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Nov 10, 2010
There are two pages in a survey project. A submit button is in pageB. Before cliking submit button, I need to add code in pageB to validate data in pageA.
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May 4, 2010
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Action "A" should bind only "Name" property of object, taken from POST-request
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Apr 25, 2010
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Nov 17, 2010
I have a requirement like i have bulk of excel data which i have do validate and if it is okay then i need to insert the data in the DB .
Validations includes like datatype, length, precision.. etc ... Wil ahve thousands of records.
Earlier validation was done in the Stored procedure side where the developer moved the data to the temp table and loop through each row and validate it . But we are acing performace isues and some time time out error as well.
So i thought of silution like , Convert the execl data to datattable and validate the data in UI instead of the DB.
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May 7, 2015
I want to validate one field in the gridview i.e. user should select the same subject name from the checkboxlist item. Refer image [URL] ....
Below is the html code and C# code for checkbox event
<asp:TemplateField HeaderText="Select">
<ItemTemplate>
<asp:CheckBox ID="chkBxSelect" runat="server" AutoPostBack="true"
OnCheckedChanged="CheckBox1_CheckedChanged" />
</ItemTemplate></asp:TemplateField>
[Code] ....
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Apr 17, 2010
I have <asp:Button ID="btnDelete" ..../> and <asp:DataList ID="lstOrder"..../>
"lstOrder" has <asp:CheckBox ..../> for each "lstOrder" item. I am binding "lstOrder" to DataTable at run time (DataTable is being created dynamically"
"btnDelete" first loops through the "lstOrder" and stores the indexes of items which are marked(checked). Next rows are deleted from the DataTable and "lstOrder" is binded again.
I don't want to postback if none of the items are marked in the "lstOrder"
How to validate ?
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Jan 19, 2011
I am new to wcf . I want to implent one wcf service like upload xml file from cient to wcf service .
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Nov 20, 2010
I have a Gridview on my aspx and i wonder if i can use validators like requiredfieldvalidator,comparevalidator or etc to validate a row is added or NOT?
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May 10, 2010
i am using c# and want to do a validate to edit and do a new fild.
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