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Can i give more than one id/class in below asp text box
<asp:TextBox ID="test" runat="server" CssClass="textbox" Style="width: 125px;"
MaxLength="12">
</asp:TextBox>
You can give more than one css class CssClass="textbox editable wide", but id no. Id should be unique.
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I am new to asp.net & my client needs to fill the url in text box & without proper url the form should not be submitted. Can anybody know how to apply url validator in textbox fields in asp.net.
Please let me know about it thanks
Create a textbox:
<asp:TextBox ID="TxtUrl" runat="server"></asp:TextBox>
Use a regular expression:
<asp:RegularExpressionValidator ID="RegExUrl" runat="server" ErrorMessage="Must be in a website format" ControlToValidate="TxtUrl" ValidationExpression="(http(s)?://)?([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?" Display="Dynamic"></asp:RegularExpressionValidator>
If the field is required before submission, use this:
<asp:RequiredFieldValidator runat="server" ID="ReqUrl" ControlToValidate="TxtUrl" ErrorMessage="Required" />
Alternatively, you can use an HTML5 input with the type of url (w3schools):
<input type="url">
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I try to use the ValidatorCallout Extender from the asp.net Ajax site.
I have no idea on how to change the popup validator CSS.
This extender has server CssClass property. Simply provide a class name of the CSS class in your markup.
<style>
.someClass {
color: red;
}
</style>
<ajaxToolkit:ValidatorCalloutExtender runat="server" TargetControlID="ControlID" CssClass="someClass" />
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In an unordered list the visibility of individual list items can be set thus:
<li runat="server" visible=false>Apples</li>
or:
<li runat="server" visible="false">Bananas</li>
But why can't this be done using the 'Eval'method? None of these work:
<li runat="server" visible='<%# Eval("Show")%>'>Carrots</li>
--where Show is a bit that has values of 0 or 1.
<li runat="server" visible='<%# Convert.ToBoolean(Eval("Show"))%>'>Dill</li>
--where Show is a string that has values "true" or "false", or an integer that is either 0 or 1.
What is the answer?
Try
<li runat="server" Visible='<%# Eval("Show").ToString() == "1" %>' ID="bananaItem">Bananas</li>
If that doesn't work, you could also use codebehind if it has runat="server" and an ID:
With CSS (available at client-side):
// make it invisible
bananaItem.Attributes.CssStyle.Add("display", "none");
// make it visible:
bananaItem.Attributes.CssStyle.Remove("display");
Visible-property (not available at client-side, isn't rendered at all):
bananaItem.Visible = false;
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asp.net using the hyperlink
<asp:HyperLink ID="HyperLink4" NavigateUrl="~/Diary_Documents/Details.aspx" runat="server" Text="Images"></asp:HyperLink>
to bring the user to the details page inside the Diary_Documents folder.
Iv copied the entire Diary_Documents folder to include list, insert, edit and details both aspx and cs.
Pasted it into the customPages folder renamed it 'Diary_Documents2' then changed the hyperlink to
<asp:HyperLink ID="HyperLink4" NavigateUrl="~/Diary_Documents2/Details.aspx" runat="server" Text="Images"></asp:HyperLink>
but the page cant be found...what am i doing wrong?
Looking at the directory structure, unless I'm very much mistaken, the link should either be-
<asp:HyperLink NavigateUrl="~/DynamicData/CustomPages/Diary_Documents/Details.aspx" runat="server" Text="Images"></asp:HyperLink>
or
<asp:HyperLink NavigateUrl="~/DynamicData/CustomPages/Diary_Documents2/Details.aspx" runat="server" Text="Images"></asp:HyperLink>
The tilda (~) makes it a relative path from the root of the application. Therefore you need to add "DynamicData/CustomPages" to complete the path.
As you don't give the location of the page the link is contained in, I can't show you what the purely HTML relative link would be, but if the page were in "CustomPages" as an example, it would be this-
<asp:HyperLink NavigateUrl="Diary_Documents/Details.aspx" runat="server" Text="Images"></asp:HyperLink>
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I'd lke to know the best way to use tags in html, using asp tags or using normal html tags.
this:
<asp:Button ID="save" runat="server" Text="Save" />
or this:
<input type="button" id="save" runat="server" value="Save" />
Advantages and Disadvantages
I will use asp tags ,especially in case of buttons i will prefer to use asp tags, Because when you use a html tag for button with runat="server" the attributes like PostBackUrl will not work.
They're just the same. The other one is the so-called server tag or ASP tag and the other one is HTML tag. It's just a matter of style and preference.
Now, if you want to know what is the preferred tags used by ASP.Net developers, I'm sure most of us would agree that it's ASP tags. Well, at least for the ASP.Net Webform developers...