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" .... />
Related
Hi everybody i have the next problem. I have to set a button as default when i press Enter. I can use DefaultButton in the Form because now all my pages inherits from Master Page and i have a Content from the Master Page and this isn't work. Somebody could give me any alternative to solve this please. Thanks
According to Enter Key - Default Submit Button:
ASP.NET 2.0 introduces a wonderful work around for this. By simply
specifying the "defaultbutton" property to the ID of the ,
whose event you want to fire, your job is done.
The defaultbutton property can be specified at the Form level in the
form tag as well as at panel level in the definition tag.
The form level setting is overridden when specified at the panel
level, for those controls that are inside the panel.
Also, the Event Handler for the specified button, fires thereby
simulating a true submit button functionality.
Like this
<form id="form1" runat="server" defaultbutton="Button1">
<div>
<asp:Button ID="Button1" runat="server" Text="Button1" OnClick="Button1_Click" />
</div>
Or you can achieve this by
Page.Form.DefaultButton = crtlLoginUserLogin.FindControl("LoginButton").UniqueID
or just
Page.Form.DefaultButton = LoginButton.UniqueID
This will work.
One way is through to recursively search through all your child pages controls and find the first button, get the id and set the default button of your form.
Although I have never tried this, I dont think its a very good idea as it is slow and error prone.
An alternative may be to do it through javascript/jquery, see this answer:
Submit form with Enter key without submit button?
I have a asp.net application with two pages. The first page is having a next button and second page is having a back and submit button. The second page contains text box control with required field validtor.
As per current design, required field validator on 2nd page should get fired on clicking on submit button.
The issue I am having is :- User Fills the first page and then go to second page. Now, user wants to comeback to first page and then go to second page, the required field validator on text box is getting fired and showing up the error message. I dont want this. This should be like - text box should be blank and no error message should be displayed. Error messages should be displayed on clicking on the Submit button on the second page.
I tried couple of options :- 1. putting InitialValue on required field etc.. but no luck.
Could you pls help me out??
The following Markup should solve your problem :
<asp:TextBox ID="tbData" runat="server" ValidationGroup="Submit"></asp:TextBox>
<asp:Button ID="btnSubmit" runat="server" Text="Button" ValidationGroup="Submit" />
<asp:Button ID="btnBack" runat="server" Text="Button" />
<asp:RequiredFieldValidator ID="reqFieldVal1" runat="server" ErrorMessage="Field must be filled in."
ControlToValidate="tbData" ValidationGroup="Submit"></asp:RequiredFieldValidator>
These fields use the ValidationGroup property to set which fields will cause the validation of which validator controls.
You will notice that there is no ValidationGroup property on the btnBack button as this should not cause validation.
For more information on this see the MSDN Article for Specifying Validation Groups
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
I have a regularexpression validator which validates a valid email. I have two buttons on my form. Submit and undo.
On undo, we are reverting the page state to default
submit has it validationgroup set while undo doesnot have any validationgroup and CausesValidation="false".
Now when i navigate to page and enter invalid emailaddress,i directly click undo. the validator fires and stops my page from posting.however if i press tab and navigate to other control and then click undo,the validator shows error message but posts back and furthur proessing is done.
This is very strange and i want the page to postback without any error message when i click undo.how to achieve it.
<tec:ThemedImageButton runat="server" ID="imgbtnSave" OnClick="imgbtnSave_Click"
ValidationGroup="CustomerGroup"/>
<tec:ThemedImageButton runat="server" ID="imgbtnCancel" CausesValidation="false"
OnClick="imgbtnCancel_Click" />
These are normal image buttons with added themes.CustomerGroup is the validation group for my textbox and regularexpressionvalidator
Are you possibly clicking the undo whilst your focus is still within the email textbox? If so, perhaps the issue is that the initial blur event of the textbox is firing which in turn is calling the email validator and preventing the click / submission.
The first thing to try is to make sure you can enter an invalid email address, move the focus onto a completely different area of the page and then press undo to determine if this is the cause.
Double check your settings.
You might want to check the code behind to make sure you are not overwriting the control settings there. For example, in code, you might have the CausesValidation set to "True" or something like that.
Until you post more information you could do the following in your Undo button:
<asp:Button ID="btnUndo" runat="server" Text="Undo"
OnClientClick="Page_ValidationActive = false;"
OnClick="btnUndo_Click" />
I don't recommend this as it might solve your problem but really doesn't explain what is wired up incorrectly but the Page_ValidationActive = false; will disable all client validation on your page.
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>