My asp.net page has multiple text-boxes and DropDownLists that all have required-field validators.
My site also has multiple pages that you can move between with the click of a button. (All pages have all the buttons) When a page loads and decide I want to go to a different page without entering information into the form, I click a button to move to a separate page and the validation pops up and I can't change the page, it stops me every time?
Any ideas on how to stop this?
I know you already found a solution, but I just wanted to throw in another method for people to see.
When using validators it is common practice to use ValidationGroups. When a validator belongs to a ValidationGroup, it is only triggered by another control in the validation group. For example:
<asp:TextBox ID="NameBox" runat="server"/>
<asp:RequiredFieldValidator ID="NameVal" ControlToValidate="NameBox"
ValidationGroup="ValSubmit" runat="server"/>
//...More input fields and validators...
<asp:Button ID="SubmitButton" ValidationGroup="ValSubmit" runat="server"/>
Using this method any validators with the "ValSubmit" ValidationGroup will be triggered only by the SubmitButton and not by other controls. Now you don't have to put CausesValidation="false" on EVERYTHING else that causes a postback.
As everyone else had mentioned, set the CausesValidation property to false.
<asp:Button ID="MyButton" Text="Go Back" CausesValidation="False" />
This is straight from the Microsoft Help Page:
By default, page validation is performed when a Button control is clicked. Page validation determines whether the input controls associated with a validation control on the page all pass the validation rules specified by the validation control.
You can specify or determine whether validation is performed on both the client and the server when a Button control is clicked by using the CausesValidation property. To prevent validation from being performed, set the CausesValidation property to false.
Note:
You should set the CausesValidation property to false when you are using the PostBackUrl property to post back to a different page. You should explicitly check validation when posting back to a different page. For an example, see the Remarks section of the PostBackUrl property.
This property is commonly set to false for a reset or clear button to prevent validation from being performed when the button is clicked.
When the value of the CausesValidation property is set to true, you can also use the ValidationGroup property to specify the name of the validation group for which the Button control causes validation.
set property CausesValidation = "false" to the buttons where you don't want to trigger validation
CausesValidation="false" on the button ;)
<asp:Button CausesValidation="True|False" />
Gets or sets a value indicating whether validation is performed when the Button control is clicked.
read more about Button.CausesValidation Property
Related
I have some really weird stuff going on here.
I have the following RadComboBox and button in the master page:
<telerik:RadComboBox ID="rcbPesquisa" runat="server" CausesValidation="false" ShowToggleImage="false" LoadingMessage="Carregando..." HighlightTemplatedItems="true" OnClientKeyPressing="onKeyPressing" EmptyMessage="Buscar" EnableLoadOnDemand="True" EnableVirtualScrolling="true" OnItemsRequested="rcbPesquisa_ItemsRequested" AllowCustomText="True" AutoPostBack="true" OnSelectedIndexChanged="rcbPesquisa_SelectedIndexChanged" Width="350">
<asp:Button runat="server" ID="btnExcluir" Text="Excluir" OnClick="btnExcluir_Click" CausesValidation="true" ValidationGroup="Excluir" CssClass="btn" OnClientClick="return confirm('Deseja realmente excluir o registro?');" />
In the page, I have this validator:
<asp:CustomValidator ID="cuvExclusaoRelacionamento" runat="server" ValidationGroup="Excluir" OnServerValidate="cuvExclusaoRelacionamento_ServerValidate"></asp:CustomValidator>
What happens is: When i click the combobox, and it tries to load it's items, cuvExclusaoRelacionamento validator is called on the server, and of course things go south.
By the way... __EventTarget on cuvExclusaoRelacionamento_ServerValidate is empty
Unfortunately, and without seeing the full code I'm only guessing, I believe there is no way of getting around this due to the following settings:
ValidationGroup="Excluir" The ValidationGroup property assigned to an input control is the Validation Group which should be triggered when the control posts back; The ValidationGroup property of a validator control is the name of the group to which it is assigned; Finally the ValidationGroup property of a submitting control (which could be a button but can also be the input control) is the name of the group of Validators to validate the page against before posting back to the server. I should point out at this timethat it will not post back (server-side event handlers will not be triggered) if the validation fails. Given that the validation group of the control is the same as the validation group of your Custom Validator the validator will be triggered when the control attempts to post back to the server (e.g. when being clicked), if this validation fails it will not post back.
AutoPostBack="true" When you set the control to auto post back it will post back to the server when updated. Given you have an OnClick event I'm guessing you need to perform some server side action when the state of the control is changed.
CausesValidation="true" When set to true all validators assigned to the same "Validation Group" as the submitting control will be triggered when the control attempts to post back to the server. As I've said above, this will prevent post back (meaning the server-side Event Handlers will not be triggered) if the validation fails.
Given the information provided, I'm guessing that the best action you could take is to set CausesValidation="false" for the control. The validation can still be performed so long as you have a submit button (or other control which triggers a post back) elsewhere which is assigned to the "Excluir" Validation Group.
I have two asp buttons on a single page. In the following format
textbox1
required field validator1
button1
textbox2
required filed validator2
button2
if I keep cause validation on both buttons true, then its not firing the server side click event, but I am able to validate these text boxes using required field validators.
If I keep this cause validation on both buttons false, its firing the server side click event, but I am not able to validate these textboxes using required filed validators
Can you please tell me the best solution
Thanks
CausesValidation should be true on both.
What you need to do is set ValidationGroup Button1Validation on the textbox1 validator and button1. Set a ValidationGroup of Button2Validation on the textbox2 validator and button2.
Validation groups separate validation rules into groups so that the groups don't overlap and interfere with each other.
The default behavior of the RequiredFieldValidator is that when you don't insert something into the textbox to which it's coupled, and client side validation is turned on (defaults to true), then it won't posback and as such the server side event never gets hit.
You can turn off the client side validation on the validator control by setting the property EnableClientScript to false:
<asp:RequiredFieldValidator ID="TextBoxRequiredValidator"
ControlToValidate="NumberTextBox"
EnableClientScript="False"
Display="Dynamic"
ErrorMessage="Please enter a value."
Text="*"
runat="server"/>
Taken from the MSDN documentation.
When I called this function to enable a validator from client javascript:
`ValidatorEnable(document.getElementById('<%=valPassportOtherText.ClientID%>'), true); //enable` validation control
the required validation control immediately performed it validation, found the value in the associated text box blank and set focus to the textbox (because SetFocusOnError was set to true). As a result, the side effect was that focus was shifted to the control that was associated with the Validation control, i teh example, txtSpecifyOccupation.
<asp:TextBox ID="txtSpecifyOccupation" runat="server" AutoCompleteType="Disabled"
CssClass="DefaultTextBox DefaultWidth" MaxLength="24" Rows="2"></asp:TextBox>
<asp:RequiredFieldValidator ID="valSpecifyOccupation" runat="server" ControlToValidate="txtSpecifyOccupation"
ErrorMessage="1.14b Please specify your <b>Occupation</b>"
SetFocusOnError="True"> Required</asp:RequiredFieldValidator>
Perhaps there is a way to enable the (required) validator without having it simultaneously perform the validation (at least until the user has tabbed off of it?)
I'd like validation of the txtSpecifyOccupation textbox to occur only on a Page submit or when the user has tabbed of the required txtSpecifyoccupation textbox.
How can I achieve this?
Don't call the ValidatorEnable method. Instead, get a reference to teh validation control and simply set its "enabled" property as desired.
To clear the validation control's error text, set the innerText property to "".
On one of my asp.net pages I have a few textboxes and a required validator attached to them. Everything is ok with validation, but when I want to change page to another required validator doesn't allow it because I don't fill in a textbox :/
How to allowed change page without fill a validate textbox? I must create a condition in "exit page" (how is it named ?) event disabled required validation?
Please help ;)
If you're using some control to move to the next page, set it's CausesValidation property to False.
For example, if you're clicking a button that moves you to the next page, it would be like:
<asp:LinkButton id="myButton" runat="server" CausesValidation="False" .... />
I am using a require field validator for a textbox in asp.net application. Problem is that when there is no value in textbox then no button on the web page do not works even page redirection button for back page also not performing function and validator gives err msg which i define
But if I put sum value in it then all btn works correctly.
Can anyone tell me that how can i overcome this problem
Set the CausesValidation attribute to False on the button and link controls that don't require validation (such as your back button).
<asp:button id="btnBack" runat="server" causesvalidation="false"></asp:button>