In today's project, there is a requirement to have a Textbox (webcontrols) that cannot be copied or pasted.
At the beginning, I did not expect this event in textbox. I have been searching for it for a long time. I only wanted to find window textbox. I opened msdn and looked at the event in textbox. I didn't find an
[Instance description]
You can easily enter text information in the TextBox control, including letters, numbers, and Chinese characters.If you need to enter the age information in the TextBox Control, the age information should only allow numbers. How can you restrict other information input by users?This example shows how to only allow users to enter numbers in the Tex
1. Add an icon in front of textbox.
Effect:
2. rounded textbox.
The code in the second paragraph is in application. resources defines a style named txtstyle, which is modified by elements such as grid, label, border, and scrollviewer. when applied to Textbox, the icon position in front of the text box appears. the background attribute inserts an image into th
How to convert multi-row textbox to ListBox
Old strange answer:
This solution focuses on the broken lines in Textbox, which must be combined by CHR (13) + CHR (10). Therefore, CHR (13) should be used as the cutting judgment point:
Dim allstring as stringDim singlestring as stringDim sepstring as stringDim I as longAllstring = text1.text
For I = 1 to Len (allstring)Singlestring = mid (allstring, I, 1)If sing
Not long ago, when I registered csdn, I found that every time I left a Textbox Control, an error message may appear.
In the past, ASP was used by clicking the "OK" button and then verifying it when submitting the page. In contrast, Asp. net is more friendly and convenient. I tried it myself:
First, define a Textbox Control,
As you know,. Net has a verification control:
Through this function, you can verif
The WPF TextBox Control obtains the hotkey and converts it to win32 Keys and wpftextbox.
The Key object used in WPF is different from the Keys in WinForm. The Key enumeration objects of the two are different from those of the physical Key, and the type cannot be forcibly converted. When you use the win api to register a hot Key, you need to convert it to a win32 Key value. You can use KeyInterop. VirtualKeyFromKey (). In addition, Keys can save the co
Today, the company's formal environment has a poor function, but the test environment is no problem. After discussion with colleagues, it was found that the visible attribute of textbox was set to false when I was writing code.
At that time, the requirement was to add "related instructions" when sending an email, while "related instructions" were filled in by the first sender, and after receiving the email, log on to the system and send the second e
/** // /// Set all textbox names on this page to read-only
/// /// Public void settextboxreadonly (system. Web. UI. Control page)
{
Int npagecontrols = page. Controls. count;
For (INT I = 0; I {
Foreach (system. Web. UI. Control in page. controls [I]. Controls)
{
If (control is textbox)
{
// (Control as textbox). Attributes. Remove ("class ");
// (Control as
Automatic completion in scriptFunction Init (){Element. setattribute ("AutoComplete", "off ");}
In addition, if you want to disable the text box from using the input method, you can add ime-mode: Disabled to its style. However, Chinese characters cannot be entered, because you can still copy and paste Chinese characters. for example:
Microsoft's. NET Passport is implemented in this way, but there are other methods because the implementation methods in Yahoo and Gmail are different.
What is the
The Textbox Control provided by dotnetbar modifies the default behavior. When you press enter, the focus will jump to other controls, and CTRL + enter will be the default behavior. Sometimes this function is not required for an input box on the interface. For example, for a textbox with multiple rows, you need to enter another line, and the focus is still on the textbox
private void Cleartext (ControlCollection Controls){foreach (Control item in Controls){if (item. Controls.Count > 0){Cleartext (item. Controls);}If (item is TextBox){(TextBox) Item). Text = "";}}}There may be more than one container on your page, such as N panel, and a panel with n textbox;So first you need to get the index container:foreach (System.Web.UI.Contro
1. Differences between readonly = 'true' and enabled = 'false' in textbox attributes
The HTML server control uses a class derived from the htmlcontrol base class (full Class Name: system. Web. UI. htmlcontrols). Only the disabled property is available in this class.
Per W3C specification: http://www.w3.org/TR/REC-html40/interact/forms.html#h-17.12
The textbox of the readonly attribute w
1. Check the number of textbox columns in the gridview. Note:
The column in The gridview starts counting from 0, and the index in the first column is 0. add textbox to the first column, so we can
For (INT I = 0; I
{
Textbox TXT = (textbox) This. gridview1.rows [I]. cells [0]. findcontrol ("textbox1 ");
If (txt! =
How to "completely" Close the right-click menu of textbox?
Assign an empty menu to the contextmenu of textbox. Right-click the textbox and the default menu does not appear. However, if you right-click the textbox and hold it down, move the mouse outside the textbox and rel
input type = "text" name = "CreditCard" maxlength = "+" AUTOCOMPLETE = "OFF" >C Disable auto-completion in scriptsfunction init () {Element.setattribute ("AutoComplete", "Off");}D If you want to prevent the text box from using the Input method, you can add the ime-mode:disabled in its style, but this does not prohibit the input of Chinese characters, because the user can stillTo import Chinese characters by copying and pasting, such as: input type =text style= "ime-mode:disabled;" mce_style="
. NET textbox control settings readonly=true Background No value three workarounds when the textbox is set readonly=true after the foreground for the control to add a value, the background is not taken, the value is empty, how depressing a problem after trying, The discovery can solve this problem in the following way. Interested friends can understand the nextwhen the
Data---------VB application: Use commas to differentiate data in a textbox------------
The main role is in querying the database, require the same field of the multiple conditions of the query, the generation of SQL statements, the following code is the use of a textafter array to store comma-separated data.
Dim Inttextlen, I, K as Integer
Dim Textbefore, Textafter as String
Inttextlen = Len (TextBox1.Text)
K = 1
Textbefore = TextBox1.Text
For i =
A brother in the blog asked me a question about how the dynamically created control loads the view status. He also mentioned calling the ProcessPostData method. Here I will use the TextChanged event of TextBox to describe how to load View data and how to trigger events.
Let's take a look at a demo:
The Code is as follows:
Running result
Now let's modify the value of the text box and click the button to submit the page to see what happened.
The Text
Private void maid (Object sender, system. Web. UI. webcontrols. datagriditemeventargs E)
{
//// Enter the editing mode to limit the width of the textbox ////
E. Item. cells [4]. Attributes. Add ("onclick", "Return confirm ('Are you sure you want to delete this item? ');");
If (E. Item. itemtype = listitemtype. edititem){If (E. Item. controls [1]. controls [0]. GetType (). tostring () = "system. Web. UI. webcontrols.
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