placeholder

问题 In an ASP.NET project I have the following HTML: <asp:PlaceHolder ID="plcTitle" runat="server"></asp:PlaceHolder> <div id="divStrapline" runat="server" /> which are populated with this code: if (this.TitlePanel != null) { plcTitle.Controls.Add(this.TitlePanel); } if (this.Strapline != null) { divStrapline.Controls.Add(this.Strapline); } Are they both the same thing? Is either better than the other? Why? 回答1: The <asp:PlaceHolder /> does not generate a div tag. The PlaceHolder Web server

问题 Hi i need help with a MySQL query. Is it possible to do some wildcard replace for a string like the example below? String:                         example.com/folderone /some/path/to/file.pdf String:                         example.com/foldertwo /some/path/to/file.pdf Replace: newsite.com /some/path/to/file.pdf newsite.com/some/path/to/file.pdf newsite.com/some/path/to/file.pdf To remove the folder and change the domain but keep the path. In this case each folder have a different name with a

问题 In my select elements, I want a default text such as "please select an option". Also I use the jQuery plugin Validation with my form so that the user cannot submit the form if he has not selected something in my select elements. Problem is, if I have "please select an option" in my selects, the form will validate. How to deal with this problem? 回答1: <select> <option value="">Please select an option</option> <option> content is only used when the value is not empty. http://jsfiddle.net/s5AVg/

问题 When activating new email notifications from Custom order statuses I have this options for Subject placeholders: "You can use the following placeholders: {order_date}, {order_number}, {order_status}, {billing_first_name}, {billing_last_name}, {billing_company}, {blogname}, {site_title}" Is there a way of creating new placeholders for other fields? Basically, I have created a new hidden field called test_pw and I want to be able to add {billing_email} and {test_pw} to my custom emails. I have

问题 I'm making a custom textField with a label in his left view but the text of the label is not aligned with the text/placeholder of the textField . Here my simple code: class mytextfield: UITextField { override init(frame: CGRect) { super.init(frame: frame) leftViewMode = .always let label = UILabel() label.text = "Hello" leftView = label } required init?(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented") } override func leftViewRect(forBounds bounds: CGRect) ->

问题 I used the following code for setting different font for UITextfield's text(16) and placeholder(9), m_searchTextField.font = UIFont .systemFontOfSize(16) let font = UIFont .systemFontOfSize(9) let attributes = [ NSForegroundColorAttributeName: UIColor.lightGrayColor(), NSFontAttributeName : font] m_searchTextField.attributedPlaceholder = NSAttributedString(string: "Search String be in meddle left", attributes:attributes) Font size is set correctly, but the placeholder text sets somewhat upper

问题 Suppose i have this text field <input type="text" placeholder="I am placeholder"> I know with css we can change placeholder color like this but is there any way to change color of one word only. ::-webkit-input-placeholder { /* Chrome/Opera/Safari */ color: pink; } ::-moz-placeholder { /* Firefox 19+ */ color: pink; } :-ms-input-placeholder { /* IE 10+ */ color: pink; } :-moz-placeholder { /* Firefox 18- */ color: pink; } This code will change complete placeholder color but i want to change

问题 I have a TextField like this, where the input text and the hint text are sized differently. new TextField( style: Theme.of(context).textTheme.subhead.copyWith( fontSize: 70.0, ), decoration: new InputDecoration( hintText: 'Enter a number', hideDivider: true, hintStyle: new TextStyle( color: Colors.grey[500], fontSize: 25.0, ), ), ); While the user input text is centered in my parent container, the hintText is not (top has more space than the bottom). Is there a way to vertically center the

问题 I want to add one icon to placeholder like this $("#tag_list").select2({ allowClear: true, placeholder: "<i class='icon-group'></i>    inout your tags...", tags: ['a', 'b', 'c'], }); But it renders plain text in select2, so how to render html text for placeholder? 回答1: Select2 automatically escapes HTML markup. $("#tag_list").select2({ allowClear: true, placeholder: "<i class='icon-group'></i>    inout your tags...", tags: ['a', 'b', 'c'], escapeMarkup : function(markup) { return markup; } //

问题 Little issue on my app, placeholders aren't present on Internet Explorer 11. I tried the CSS sample below but without any success. :-ms-input-placeholder { /* IE10–11 */ color: #ccc !important; font-weight: 400 !important; } ::-ms-input-placeholder { /* Edge */ color: #ccc; font-weight: 400; } ::placeholder { /* CSS Working Draft */ color: #ccc; font-weight: 400; } Any suggestions on how to resolve this issue ? 回答1: Finally found how to resolve this issue, the emulation was set at 9 as