textbox

问题 Ive been trying to do this, so the textbox only accepts letters, but the validation does not work. Even when I enter numbers it processes it and shows the first lblError of "Thankyou for your details", where it should actually be "Enter A Valid Name ". is their are validation test similar to IsNumeric for this type of problem? plz help Dim MyName As String If txtMyName.Text Then MyName = txtMyName.Text lblError.Text = "Thankyou for your details" Else lblError.Text = "Enter A Valid Name " End

问题 I have a C# UserControl that hosts a TextBox. When the custom control is disabled, I would like the TextBox to be rendered as if it were Disabled + ReadOnly (i.e. not greyed out). Therefore, when the custom control catches the EnabledChanged it sets the hosted TextBox properties accordingly. However, the Enabled state of the UserControl takes precedence over everything else and the TextBox is still rendered greyed out (even though its internal ForeColor is correct). Therefore, I decided to

问题 Ok, well I have been at it for a while now and I decided to just use threads. I am making a syntax highlighter but I keep getting terrible performance with the file sizes that it will usually be used for. So I made two forms, the first shows the file in plain text and has a button that says "openincolor" when you click that I start a new thread as such private void button1_Click(object sender, EventArgs e) { ColoringThread colorer = new ColoringThread(this.m_bruteView.Text); Thread theThread

问题 private void comboBox1_SelectedIndexChanged(object sender, EventArgs e) { combobox.items.add=("peter magdy"); if (combobox.selecteditems=("peter magdy") textbox.text==("age 23, male, etc"); } this code helps you to populate textbox with value from combobox 回答1: Consider this // your person model where you hold person info public class Person { public int Id {get; set;} public string Name {get; set;} public int Age {get; set;} public string Sex {get; set;} } // You will hold not strings but

问题 I have asp.net application, in which there is a textbox to enter some text. The application will send mail to users. The date whatever they enter in the texbox is the body of the mail. The issue the formatting is not retained in the outcome of the mail. It's cumbersome. For example I enter following text in textbox : SAMPLE : Testing the issue. EXAMPLE : Checking for the same . the outcome of mail look like following : sample : testing the issue.example : checking for the same. I want the

问题 I have added a StatusStrip control and placed a StatusLabel inside of it. But now I want to know how to connect it to my TextBox to show the line number and position of the cursor, like: "Line 2, Row 6". Thank you 回答1: Get the index of the caret in the TextBox: C# int caretIndex = textBox.SelectionStart; VB.NET Dim caretIndex As Integer = textBox.SelectionStart Get the line number from the caret index: C# int lineNumber = textBox.GetLineFromCharIndex(caretIndex); VB.NET Dim lineNumber As

问题 SO i am working on a project and i was trying to disable the frame and the field from the program so that only the window is front is this one being active here is my code : import javax.swing.*; import java.awt.event.*; import java.awt.*; public class password { private static String password = "pass"; public static void main(String[]args) { JFrame frame = new JFrame("Password"); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(400,100); JLabel

问题 Can i capture the textbox input as an octal number in windows phone 7 ? 回答1: You can covert string to int use: int number = Convert.ToInt32("010", 8); if it throws FormatException then number cannot be converted. 来源： https://stackoverflow.com/questions/11377655/windows-phone-textbox-input-as-an-octal-number

问题 Can anyone help me understand why a text box won't display a whole string opposed to just the first word? For example if the value of Name is "John Smith", the text box will display "John" echo "<td>" . "<input type = text name = name value =" . $record['Name'] . " </td>" ; 回答1: Thats because you did not quote your attribute value, without quotes spaces terminate the attribute value echo "<td><input type = text name = name value =\"" . $record['Name'] . "\" ></td>" ; 来源： https://stackoverflow

问题 I want to override the Text property of a textbox to set its value as auto trimmed. For that, I had to define the following class: public class TextBox : System.Web.UI.WebControls.TextBox { public override string Text { get { return base.Text.Trim(); } //Automatically trim the Text property as it gets assigned set { base.Text = value.Trim(); } } } But the issue is that it's not working for TextBoxes defined in a design page (.aspx) and it only works for dynamically created Textboxes. I need