Data Controls :: Using RequiredFieldValidator In GridView?
Feb 25, 2016
I have gridview control on my web page and I allow the user to add a serial number to a textbox in each row of the gridview. If they do not enter a serial number, I want to display a message. Here is my ASP.Net code:
<tr>
<td>
<asp:GridView ID="gvItems"
runat="server"
[Code].....
But when I enter a serial number value, the page displays the error message saying "Please Complete All Required Fields". While in debug mode, sn.Text.Length is = 0. But I enter a value like "XXXXXXX".
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Similar Messages:
May 19, 2010
I have a Gridview and I allow fullscreen editing. I have some RequiredFieldValidators in my Gridview and this works fine. But if the user clicks on a dropdownlist in the Gridview and chooses "Rejected", I want to turn off validation. But I am not sure how to do this. Here is my code in the SelectedIndexChanged event for the ddl:
Protected Sub ddlPOACKCodes_SelectedIndexChanged(ByVal
sender As
Object,
ByVal e
As System.EventArgs)
[Code].....
But I get an error on this line: rfv = gvPODetail.SelectedRow.FindControl("rfv11"). the error is:
Object reference not set to an instance of an object.
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Mar 11, 2011
How do I add a RequiredFieldValidator on a textbox in a DataList?I assume I have to add it dynamically somehow?
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Oct 20, 2010
Is it possible to add RequiredFieldValidator in DetailsView dynamically (programatically)?
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Aug 15, 2010
<asp:Button ID="Button1" runat="server" BackColor="Transparent" BorderColor="Transparent"
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Aug 11, 2010
I am creating a custom server control in which I place a RequiredFieldValidator. In the the Render method and I want to dynamically create a RequiredFieldValidator and render it to the HtmlTextWriter.
The problem is, when I call RenderControl on the RequiredFieldValidator, it only generates a span for me with no javascript or client side code.
How can I completely render a RequiredFieldValidator to an HtmlTextWriter?
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Dec 23, 2010
I'm looking to disable my requiredfieldvalidator when I have a my outer div's display set to none. I'm using this to toggle billing and shipping panels on the client side using jquery by removing them from view without a page refresh.
<div id="shipping-panel" style="display:none">
<span style="display: inline-block; margin-bottom: 4px; padding-right: 5px;" id="label-shipping-firstname">First Name</span>
<span style="color: Red; visibility: visible;" id="ctl47">** First Name</span>
<input type="text" style="width: 185px;" id="textbox-shipping-firstname" maxlength="100" name="textbox-shipping-firstname">
<span style="display: inline-block; margin-bottom: 4px; padding-right: 5px;" id="label-shipping-firstname">Last Name</span>
<span style="color: Red; visibility: visible;" id="ctl47">** Last Name</span>
<input type="text" style="width: 185px;" id="textbox-shipping-lastname" maxlength="100" name="textbox-billing-lastname">
</div>
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Jul 19, 2010
I have a RequiredFieldValidator for a text box on my form. this form has three buttons. I want only one of these buttons to run the RequiredFieldValidator, not the other two. How do I do that?
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May 26, 2010
I have a webform which has validators on it that work well when the user presses the submit button. But when the user presses the logout button the validators stop that button from working.
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Feb 24, 2010
I use 2 requiredfiledvalidator for 2 selects, one is working but the second one (the one I need) isnt
<asp:dropdownlist id="ddlMod" runat="server" Width="235px" AutoPostBack="True" Font-Names="Arial" Font-Size="XX-Small">
</asp:dropdownlist>
<asp:requiredfieldvalidator id="RequiredFieldValidator1" runat="server" Font-Names="Arial" Font-Size="XX-Small"
ErrorMessage="Select Mod" InitialValue="00" Display="Dynamic" ControlToValidate="ddlMod">
</asp:requiredfieldvalidator>
<asp:dropdownlist id="ddlInd" runat="server" Width="235px" AutoPostBack="True" Font-Size="XX-Small">
</asp:dropdownlist>
<asp:requiredfieldvalidator id="RequiredFieldValidator2" runat="server" Font-Names="Arial" Font-Size="XX-Small"
ErrorMessage="Select Ind" InitialValue="0" Display="Dynamic" ControlToValidate="ddlInd">
</asp:requiredfieldvalidator>
If i select the 2nd one I can see the error message for the 1st one, but I can't see any message if I dont select any or if I select the 1st one.
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Jun 5, 2010
I have custom control with asp textbox inside.And i need to Validate by RequiredFieldValidator my custom control on CLIENT side.I added attribute to custom control class:
[ValidationProperty("Text")]
public class WatermarkTextBox : System.Web.UI.UserControl
{
}
It looks like working but it always make submit to server. How can i check it only on client side?
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Jan 21, 2010
i have a follwing code:
[code]....
basically wot i m doing is to validate the textbox that having the date but nothing happen as i dont select the date, textbox is only readonly, can any one assist me in this matter?
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Apr 22, 2010
I have TextBox with RequiredFieldValidator on my page.I also have link that calls some simple javascript.
<asp:TextBox ID="TextBox1" runat="server" />
<asp:RequiredFieldValidator
ID="RequiredFieldValidator4" runat="server" ControlToValidate="TextBox1"
Display="Dynamic" />
<asp:LinkButton ID="Link1" runat="server" OnClientClick="DoSomething(); return false;" CausesValidation="false"Text="Do" />
function DoSomething() {
textbox1.val("blah"); }
When user type something into textbox and then delete that text and focus next control - then validator fires.Then user can use link that adds text using javascript. TextBox1 text is no longer empty but RequiredFieldValidator still shows error message. How to prevent that?
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Mar 10, 2011
I create a new website in VS 2010 (VB .Net). I add a table, within it i add a textbox, a button and a RequiedFieldValidator. I set the RFV ControlTValidate property to the textbox. When i move(click or tab) away from the textbox, the RFV doesnt kick in the error message that i have set.
The RFV code is
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="txtEnterName" ErrorMessage="RequiredFieldValidator"
InitialValue="0" ForeColor="#FF3300"></asp:RequiredFieldValidator>
Texbox
<asp:TextBox ID="txtEnterName" runat="server" Width="221px"></asp:TextBox>
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Feb 21, 2011
As the title says. What could be amiss?
I have a regular TextBox on my page - <asp:TextBox ID="tb" runat="server" />
The following works:
<asp:RequiredFieldValidator ID="r" runat="server" ControlToValidate="tb" ErrorMessage="error" />
The following does not work:
RequiredFieldValidator rfv = new RequiredFieldValidator();
rfv.ID = "rfv";
rfv.ControlToValidate = tb.ID;
rfv.ErrorMessage = "error";
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Jan 17, 2011
I am creating a register form and when the user clicks on the confirm password field, the page refreshes and I lose the text from the other field (the password field)
The code to the confirm password is here below:
<asp:RequiredFieldValidator ValidationGroup="CreateAccount1"
CssClass="FieldValidator" EnableClientScript="true"
ControlToValidate="TxtPass" ID="pPassword" runat="server"
Text="Password required" ErrorMessage="Password required" />
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Apr 13, 2010
i have an email field, which can't be null and needs to be valid. all that is working fine through my ascx file.
however, i am also checking if that email already exists, and i want to use the rquiredFieldValidator to show the message, and set the page as invalid.
i've tried the following:
valEmail.IsValid = False
valEmail.Text = "xxx"
the xxx never shows :(
but it does nto seem to work.
the validator itself looks like this:
<b>Email:</b> <asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>
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Mar 28, 2011
When i use RequiredFieldValidator for Validation FCKEditor ,The first time that the form gonna submit, RequiredFieldValidator prompt (ErrorMessage) and indicate that FCKEditor is empty ,while it isn't .Again if you try to submit the form,It's OK and there is no problem .At this case user have to hit the submit button twice So i have to disable Client Side validation and validate form just in Server Side code which is not good.
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Oct 28, 2010
When I place ASP:RequiredFieldValidator on my ModalPopUp's panel, then why panel is not seen to me.
If I remove Validator on my ModalPopUp's panel then it works alright.
Why?
How to get worked Validators on ModalPopUp?
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May 11, 2010
I have following tag, I want to validate requirefieldvalidato runtim whenever user click on "Submit" button btnSubmit_Click event, how can I do this? Actually on my form I have 3-4 submit button for different purpose.On each buton I have set CauseValidaton=false,because some of the fields are initially hidden and depending on button click fields are visible.
[Code]....
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Jan 13, 2011
Does the RegularExpressionValidator always need a RequiredFieldValidator?I see that when there is no input the RegularExpressionValidator is not working. Correct?
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May 7, 2015
How to apply required field validator for<textarea> in html
Not the textbox<asp:textbox mode="multiline">
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Dec 15, 2010
I am using ckeditor as my Rich Text Editor (RTE). This is an html element control and not an ASP control. I would like to use the RequiredFieldValidator (RFV) control to make this field required.
I cannot find any documentation stating that the RFV can be used like this. Can anybody tell me if this is possible?
Here's an example - notice that there is an html textarea element - how do I use RFV on this?
[HTML]
[Code]....
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Jul 7, 2010
I have some controls, textboxes, etc with RequiredFieldValidators attached. When they are visible from page load, they work fine.
However, I want to start them as invisible, and on a button click, make them visible. The onclick event sets the controls to visible, but the Validators won't fire.
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Apr 27, 2010
I have a WebForms app that uses a field validator on a dropdownlist. It works in IE but not FireFox. This is pretty straightforward stuff I'm doing. Here are the setups for the dropdown and validator:
<asp:DropDownList ID ="dmbFileActNo" runat="server" CssClass="DROPDOWN_MEDIUM" AutoPostBack="True"></asp:DropDownList>
<asp:requiredfieldvalidator EnableClientScript="true" id="rfvFileActNo" Display="None" ControlToValidate="dmbFileActNo" Runat="server" InitialValue="-1"></asp:requiredfieldvalidator>
I'm running ASP.Net 2.0 on the web server. Javascript is enabled on the FireFox browser-- this problem happens on all FF browsers I've tested, on multiple everyday machines, so I don't believe it's due to a locked down install.
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