Web Forms :: Validate Page Using Required Field Validators Before Print?
Mar 17, 2014
How can I validate the page using this javascript on Asp Button Control.
function PrintPanel() {
var panel = document.getElementById("<%=pnlContents.ClientID %>");
var printWindow = window.open('', '', 'height=700,width=1000');
printWindow.document.write('<html><head><title>Trainee Appraisal Form</title>');
printWindow.document.write('</head><body >');
printWindow.document.write(panel.innerHTML);
printWindow.document.write('</body></html>');
printWindow.document.close();
setTimeout(function () {
printWindow.print();
}, 500);
return false;
}
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Print Only"
OnClientClick = "return PrintPanel();" />
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Feb 17, 2011
I have required field validators in my ASP.NET application form.
In the button click event of the FORM, i.e. OnClientClick(), I am calling a javascript function to validate the controls in this same page. Due to this the required field validators are not getting fired.
I need both the javascript function be fired on the button click , as well as required field validators also to work efficiently.
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Jul 15, 2010
I have created a form with several textboxes and a dropdown list and assigned a required field validator to each of them. I also have a master page with several links to other pages, some made using <a href=..> and some linkbuttons. The problem I am having is that when I click the linkbutton links they do not redirect to the proper page, rather they trigger the validators for all textbox fields and display the validator characters next to each textbox (and the dropdown). When I fill out the form, those links redirect properly. The links created using <a href=..> do not cause this problem.
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Jun 24, 2010
I have a contact page with fields like E-mail Address, Name, Subject, and Message. I use a RequiredFieldValidator on each text box. They work fine when I test it with the Visual Studio built-in development server, but on IIS7, they don't work and they allow the Send button's click event to be fired.
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Dec 14, 2010
im currently doing a web application.
user are allow to insert some events.
but if user didnt insert any fields, error message should pop out.
but for my calendar view, if user didnt select any, it still can pass through but data is not stored.
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Feb 5, 2010
I have 2 date fields - From and To Date.Both are using required field validators, regular expression validtors and compare validators. When the user enters an invalid date range, e.g. 02-29-2010 to 02-29-2010 (non-leap year), the comparevalidator throws an 'from cannot be greater than to date range' error.Why am I seeing this error when From is not > To.Here's the code snippet
[Code]....
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Feb 24, 2011
I created some required field validators and a validation summary control. When I get an error it displays next to the control its validating and also inside the validation summary control. I only want the error to display in one place; inside the validation summary control. I tried making the required field validator invisible but then it didn't display anywhere.How can I get the errors to only display in the validation summary control? There is no need to display them twice it just clutters up the page.
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Feb 4, 2010
I have an html input control that is a radio button. This radio button needs to disable required field validators when selected. This is my non working code so far. What have I not done?
<input ID="card1" runat="server" type="radio"/>Card<br />
btnSubmit_Click
{
if (card1.Checked == true)
{
RequiredFieldValidator10.Enabled= false;
}
}
this however doesnt disable the control.
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Feb 22, 2011
How can I use required field validators in the insert item template in a listview control? The empty fields in the insert item template are preventing the user from deleting or updating ay other row.
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Apr 17, 2012
I want to Enable Disable Required Field Validators based on RadioButton Selection using JavaScript
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Jan 18, 2011
We are using regular expression and required field validators. They work fine, especially in out of the box environments like the log in control.
When used on other controls, e.g. a textbox, they also work, but we note that the whole site is in effect shut down until the expression is valid. I.e. the user cannot click cancel, or a link. The site only starts working again after the expression has been made valid.
How can this be fixed?
The validators should only apply to the control to validate and to the control that would cause the value of that control to be posted back to the server (e.g. a button), not the whole site.
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Jul 3, 2012
i want use this control for dropdownlist i wrote below code
<asp:DropDownList ID="DDL2" runat="server" CssClass="DPCDDL">
</asp:DropDownList>
<asp:RequiredFieldValidator Display = "Dynamic" ID="RequiredFieldValidator4" runat="server"
ErrorMessage="please select your classification." ControlToValidate="DDL1" CssClass="valid1"></asp:RequiredFieldValidator>
but it didn't work how i can define that users should select one item from DDL?
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May 12, 2010
Is it possible to have "Required Field Validator" controls to validate more than one field (example I have 12 textboxes that are required. I want to try an avoid having 12 RFV controls. If a validation does get triggered, is there a way to display a customized message ("textA is empty" or "textB is empty") etc.?
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Sep 3, 2010
I have defined a field validator that works fine on normal behavior on a page:
<asp:RequiredFieldValidator runat="server" ErrorMessage="errroooorr" ControlToValidate="TextBoxHouseNumber" Display="Dynamic"></asp:RequiredFieldValidator>
Now if I dont insert any text in the TextBoxHouseNumber field, and push submit, the FieldValidator fires as it should. But if I now click a button that automatically fills the TextBoxHouseNumber with text from a Jquery/Ajax function, the field validator still shows. It´s like "Hey, the user hasnt made any changes to the textbox, so I wont bother check it".
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Jan 24, 2011
I will do my best to explain what I am trying to do. This is a form that will allow the user to change his/her password with RequiredValidators in place.Here's how to reproduce the problem that I can't seem to figure out.1. Please open up the aspx file into a browser.2. Click the "Save" button. The required validators should kick in and prompt a "Required" message.3. Key in any word in the "Change Password" textbox except for the word "pass" since I have hardcoded it into the aspx file just for example sake over here.
4. Key in anything for both the "New Password" and "Confirm New Password" textbox.5. Click the "Save" button again. You should be able to see "Your current password is incorrect." next to the "Current Password" textbox which is a Literal control.Here's the problem: How do I hide or get rid of the Literal control when I click save again? Right after the form does a post back, all the password textboxes are empty and I can't find a way to bypass the required validator controls and then screen would look like this below.I will attach my changePass.aspx file code below for reference.
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Jan 11, 2010
I need to add a Required Field Validator to a text box on my page. When I add the validator the following happens when I run the page:
When I click the submit button the page doesn't submit because the page is invalid. No error message displays despite my having set the ErronMessage. When I click inside the text box that has the Validation, then the Required error message shows. When that textbox loses focus the error message goes away. The only way I can get the page to function correctly is if I create 2 Validators for the same text box. The first validator is set to have an ErrorMessage of "" and the second one is a regular error message.
I have used these before many upon many times and never experienced this. Below you will find the Source code.
[Code]....
This code is the only way I am able to get the validation to function correctly where the ErrorMessage displays when I leave the field blank. I appreciate any help on resolving this issue. I have deleted/re-added the validation control many times. This is the only page this type of error happens on.
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Nov 25, 2010
Can a required field validator be called from the code behind page?We have several check boxes and some of them require the user to enter a date, but not all of them.(This is not a checkbox list, but individual checkboxes).Any 1 of 6 different checkboxes selected makes a txtBox visible for users to enter a date.If they don't select one of these checkBoxes which require a date - it doesn't matter, the form will still be valid.I don't think validation groups can work here so looking towards doing through .vbHere's the existing code:
Public
Sub chkBoxI_CheckedChanged(ByVal sender
As
[code]...
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Jan 14, 2010
I've currently got a RequiredFieldValidator added to the top 3 fields of each generated set of questions. The questions are dynamic, and what I'd love to do is pop up a red "YOU MISSED SOME FIELDS...blah blah" msg above the Submit button when the user misses those top fields. (I did do this previously with a custom validator, but I've had trouble doing this w/the dynamic fields that I've created.)Right now, if you miss a top-3 field, the page just does nothing, and the user has to manually scroll up to the top of the page to see "required field" pop up in red next to the missed field.
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Apr 1, 2011
I have a DetailsView on the page and I have made one of the fields a TemplateField. In the EditItemTemplate and InsertItemTemplate I have a DropdownList that is databound to a table in my Sql Server database. I wanted to add an initial value to the DropdownList
namely "- select -" .
I set the AppendDataBoundItems property to true and added the initial value as a ListItem.Markup of the DropdownList
<asp:DropDownList ID="DropDownList_HP" runat="server"
AppendDataBoundItems="True" DataSourceID="SqlDataSource_HP" [code]...
This works fine for new input. The problem is however that the database already has records that were entered through a Windows Application and many of these records has a null value in this field and exceptions are thrown when I tried to open these records
and the system tried to set the SelectedValue of the DropdownList.After some more searching I found this help
http://msdn.microsoft.com/en-us/library/ms366709.aspx
So I changed the ListItem in the DropDownList markup to the following:
<asp:DropDownList ID="DropDownList_RefHospDV4" runat="server"
AppendDataBoundItems="True" DataSourceID="SqlDataSource_RefHosp" [code]...
This now solved the problem of opening a record where the value is null in the database, BUT now the RequiredFieldValidator is not validating anymore to make sure that a databound item is selected for this field and not the initial value "- select -". So basically now it is not checking anymore to see if valid input has been entered for the DropDownList and it accepts "- select -" thus it acts as if the field is not a required field anymore.
In short what is required is that I want to make sure that the user enters a valid selection in the DropDownList, but it must also cater for old records that do not have this field entered yet so that those old records can be opened in the DetailsView .Opening Old records (with null in that field):When these old records are opened in the DetailsView the DropDownlist should show "- select -" when the value in the database is null.
Saving records (old or new records):When saving the record in Insert mode or Update mode the RequiredFieldValidator should show that a valid input is not selected if the DropDownList is still on "- select -".
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Feb 3, 2010
I have a aspx page with a ascx control inside an ascx control and the required field validator is not hit on the action of the page.
The issue is with the 2nd nested ascx control. The field validators in the first ascx control validate correctly, but with the ascx control inside the ascx control there are issues.
The nested ascx control is a repeater control and this may be the reason, but I am unsure.
I'm not exactly sure what question to ask, but I'll list a few below.
How do I attach the field validators up a level to the 1st ascx control?
Is it possible to put required fields into a nested ascx control?
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Nov 17, 2010
I am trying to see the validation part working. I have few required field validators and compare field validators, etc.
<div>
<asp:RequiredFieldValidator ID="rfvCompany" ValidationGroup="groupProfile"
ControlToValidate="txtCompany" runat="server"
ErrorMessage="- Company Name Required" Display="Dynamic" />
</div>
[Code]....
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Jan 31, 2010
I have an ASP.NET form for currency exchange requests. There are two text fields there: amount-source and amount-target.
One of them must be filled and only one.
How to implement this using Validators, if applicable?
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Sep 13, 2010
I have table with couple of textboxes in it. In those 2 fields I have required fields. When validators fire alignment is changing. Before the validators fire, textboxes aligntment is good.Pic1 for after validator fires. Pic2 for before validator fires. here is the HTML.
<table class="Borderblue" id="Table26" cellspacing="3" align="center" style="width: 100%;">
<tr>
<td bgcolor="White" style="width:20%" >
[code]...
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Oct 5, 2010
How can we use required field validator on User Control in aspx page*strong text*
I have one user control that have one drop down. I am using this control on my page. I want to use required field validator on this drop down.
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Feb 22, 2011
I have to validate that the year entered must be less than or equals to the current year. I am using server side validators in ASP.Net and C#, and all validators are inside a validator group.
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