textbox

问题 I am attempting to bind a WPF textbox's Maxlength property to a known constant deep within a class. I am using c#. The class has a structure not too dissimilar to the following: namespace Blah { public partial class One { public partial class Two { public string MyBindingValue { get; set; } public static class MetaData { public static class Sizes { public const int Length1 = 10; public const int Length2 = 20; } } } } } Yes it is deeply nested, but unfortunately in this instance I can't move

问题 i need to display an auto complete text box which will basically load the contacts e-mail ids. I have tried it using a custom adapter but nothing gets populated in the textbox. No suggestions at all. Any solutions will be very useful. 回答1: Try the following: ArrayList<String> emailAddressCollection = new ArrayList<String>(); ContentResolver cr = getContentResolver(); Cursor emailCur = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, null, null, null, null); while (emailCur

问题 I have a textbox that requires data to be entered in a certain way. I have implemented some cell validating techniques to check the data after it has been entered, but I'd like to provide the user with some information before they enter the data. To that end, I'd like to add a tooltip to the textbox that pops up when the user enters the toolbox, then exits when they begin to type. For example I have the following code: private void YearEdit_Enter(object sender, EventArgs e) { ToolTip tt = new

问题 I have an asp.net mvc application and i am trying to assign value to my textbox dynamically, but it seems to be not working (I am only testing on IE right now). This is what I have right now.. document.getElementsByName('Tue').Value = tue; (by the way tue is a variable) I have also tried this variation but it didnt work either. document.getElementsById('Tue').Value = tue; (by the way tue is a variable) Can someone where please tell me where I am going wrong with this? 回答1: It's document

问题 This question already has answers here : Set the caret/cursor position to the end of the string value WPF textbox (6 answers) Closed 6 years ago . I have a text box with a displayed string already in it. To bring the cursor to the textbox I am already doing txtbox.Focus(); But how do I get the cursor at the end of the string in the textbox ? 回答1: For Windows Forms you can control cursor position (and selection) with txtbox.SelectionStart and txtbox.SelectionLength properties. If you want to

问题 I have the following input code that I want the user to key in his year of birth. My lecturer has asked me to use textbox for the user to put in the year of birth, date and month as dropdown list. And he also asked us to use the checkdate function to check if the user has enter the date of birth properly. ( I'm using Eclipse PDT) This is the code for the input date of birth in php page: <p> <b>Date of Birth:</b> <select size="1" name="day"> <option value="" selected>Select Date</option>

问题 I have a WPF textbox defined in XAML like this: <Window.Resources> <Style x:Key="textBoxInError" TargetType="{x:Type TextBox}"> <Style.Triggers> <Trigger Property="Validation.HasError" Value="true"> <Setter Property="ToolTip" Value="{Binding RelativeSource={x:Static RelativeSource.Self}, Path=(Validation.Errors)[0].ErrorContent}"/> </Trigger> </Style.Triggers> </Style> </Window.Resources> <TextBox x:Name="upperLeftCornerLatitudeTextBox" Style="{StaticResource textBoxInError}"> <TextBox.Text>

问题 My application in C# has a Textbox with a txt_TextChanged event. private void txt_TextChanged(object sender, EventArgs e) { //Do somthin } But there's one specific part that I want to change txt.Text without firing the txt_TextChanged event. txt.Text ="somthing" //Don't fire txt_TextChanged How can I do that? 回答1: There is no direct way to prevent the raising of events for the text property, however your event handler can use a flag to determine weather or not to perform a task. This i likely

问题 I want to do something very simple. After a user enters text in an HTML text box then hits submit, the PHP echo's the entered text. I searched all over and I cant find out how to do it! There must be some way! I want something like this except $foo is what the entered text was. <html> <input type="text" name="something" value="$foo"/> <html> <?php echo $foo = "ben"; echo "foo is $foo"; // foo is foobar ?> 回答1: FTFY <html> <head><title>some title</title></head> <body> <form method="post"

问题 In a Windows Phone 7 app. I happen to have many TextBox s stacked in a ItemsControl and the behaviour across textboxes for selection is not uniform i.e. a single click on any word in any text box does not select the tapped word. First a click is consumed for focusing the text box and then another to actually select the word; but once the text box has focus, it's a single click to select any word within, until the user wants to select some other word in another textbox. Is there a way to