Just set your combo as a DropDownList:

    this.comboBoxType.DropDownStyle = ComboBoxStyle.DropDownList;

I believe you want to set the DropDownStyle to DropDownList.

    this.comboBoxType.DropDownStyle = 
        System.Windows.Forms.ComboBoxStyle.DropDownList;

Alternatively, you can do this from the WinForms designer by selecting the control, going to the Properties Window, and changing the &quot;DropDownStyle&quot; property to &quot;DropDownList&quot;.

You can suppress handling of the key press by adding `e.Handled = true` to the control&#39;s KeyPress event:

    private void Combo1_KeyPress(object sender, KeyPressEventArgs e)
    {
        e.Handled = true;
    }

I like to keep the ability to manually insert stuff, but limit the selected items to what&#39;s in the list. 
I&#39;d add this event to the ComboBox. As long as you get the SelectedItem and not the Text, you get the correct predefined items; a, b and c.

    private void cbx_LostFocus(object sender, EventArgs e)
    {
      if (!(sender is ComboBox cbx)) return;
      int i;
      cbx.SelectedIndex = (i = cbx.FindString(cbx.Text)) &gt;= 0 ? i : 0;
    }

Why use ComboBox then?

C# has a control called [Listbox][1]. Technically a ComboBox&#39;s difference on a Listbox is that a ComboBox can receive input, so if it&#39;s not the control you need then i suggest you use `ListBox`

Listbox Consumption guide here: [C# ListBox][2]


  [1]: https://msdn.microsoft.com/en-us/library/system.windows.forms.listbox%28v=vs.110%29.aspx
  [2]: http://www.dotnetperls.com/listbox

I would like to use regular expression to find every instances of a regular expression pattern I.e. `&amp;*;` in my string and remove that from  so the return value is the original string without any of the matches. Also would like to use the same function to match multiple spaces between words and have a single space instead. Could not find such a function. 

Sample input string 

    NSString *str = @&quot;123 &amp;1245; Ross Test  12&quot;;

Return value should be 

    123 Ross Test 12

If anything matching this pattern `&quot;&amp;*` or multiple  white spaces and replaces it with `@&quot;&quot;;`

Use regular expression to find/replace substring in NSString

How is the status bar is customized? I noticed in [this youtube video][3] (at 3:05 - image below), the status bar looks very different than the default one that I see after installing tmux on my Mac OS X.

In particular, I like how the middle of the status bar shows the current program and the left side shows the name of only the current session. In comparison, my setup shows the name of all of the sessions and doesn&#39;t show the current application (for the currently focused pane).

If anyone could show me a sample configuration that could do this or show me where I can find the customization rules, that would be great! Thanks!

![enter image description here][1]

**Update**: In case anyone is curious, I was able to customize a status bar that is similar to the one seen in the video (minor tweaks) and you can find my config file [on my github][2] if you&#39;d like to see an example.


  [1]: http://i.stack.imgur.com/FAI7O.png
  [2]: https://github.com/JohnMurray/dotfiles/blob/master/.tmux.conf
  [3]: http://www.youtube.com/watch?v=JXwS7z6Dqic&amp;feature=youtu.be

tmux status bar configuration

I have a form in C# that uses a `ComboBox`.
How do I prevent a user from manually inputting text in the `ComboBox` in C#?

    this.comboBoxType.Font = new System.Drawing.Font(&quot;Arial&quot;, 15.75F);
    this.comboBoxType.FormattingEnabled = true;
    this.comboBoxType.Items.AddRange(new object[] {
                &quot;a&quot;,
                &quot;b&quot;,
                &quot;c&quot;});
    this.comboBoxType.Location = new System.Drawing.Point(742, 364);
    this.comboBoxType.Name = &quot;comboBoxType&quot;;
    this.comboBoxType.Size = new System.Drawing.Size(89, 32);
    this.comboBoxType.TabIndex = 57;   

I want A B C to be the only options.

How to prevent manual input into a ComboBox in C#

I have a form in C# that uses a <code>ComboBox</code>.
How do I prevent a user from manually inputting text in the <code>ComboBox</code> in C#?
<pre><code class="hljs language-ini">this.comboBoxType.Font = new System.Drawing.Font("Arial", 15.75F);
this.comboBoxType.FormattingEnabled = true;
this.comboBoxType.Items.AddRange(new object[] {
 "a",
 "b",
 "c"});
this.comboBoxType.Location = new System.Drawing.Point(742, 364);
this.comboBoxType.Name = "comboBoxType";
this.comboBoxType.Size = new System.Drawing.Size(89, 32);
this.comboBoxType.TabIndex = 57; 
</code></pre>
I want A B C to be the only options.

    DataTable dt = new DataTable();  
    dt.Columns.Add(new DataColumn(gridColumn1, typeof(bool)));

I was expecting the result of the below line to include info about the DataColumns Type (bool):  

    ?dt.Columns[0].GetType()


Get a DataTable Columns DataType

I am trying to generate emails with HTML content.  this content has already gone through sanitation so I am not worried in that regard, however when I call:

    Razor.Parse(template, model);

on the following Razor template:

    &lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0 Transitional//EN&quot;&gt;
    &lt;html&gt;
    	&lt;body&gt;
            @(new System.Web.HtmlString(Model.EmailContent))
    	&lt;/body&gt;
    &lt;/html&gt;

the email that is outputted is HTMl encoded, but I need it decoded.  How can I accomplish this?

How do I output raw html when using RazorEngine (NOT from MVC)

I have an EXE file reference in my C# project.  How do I invoke that EXE file from my code?





How can I run an EXE file from my C# code?

I&#39;m using the WCF4.0 template -[REST][1]. I&#39;m trying to make a method that uploads a file using a stream.

The problem always occur at

    Stream serverStream = request.GetRequestStream();

Class for streaming:

    namespace LogicClass
    {
        public class StreamClass : IStreamClass
        {
            public bool UploadFile(string filename, Stream fileStream)
            {
                try
                {
                    FileStream fileToupload = new FileStream(filename, FileMode.Create);
                    byte[] bytearray = new byte[10000];
                    int bytesRead, totalBytesRead = 0;
                    do
                    {
                        bytesRead = fileStream.Read(bytearray, 0, bytearray.Length);
                        totalBytesRead += bytesRead;
                    } while (bytesRead &gt; 0);

                    fileToupload.Write(bytearray, 0, bytearray.Length);
                    fileToupload.Close();
                    fileToupload.Dispose();
                }
                catch (Exception ex) { throw new Exception(ex.Message); }
                return true;
            }
        }
    }

REST project:

    [WebInvoke(UriTemplate = &quot;AddStream/{filename}&quot;, Method = &quot;POST&quot;, BodyStyle = WebMessageBodyStyle.Bare)]
    public bool AddStream(string filename, System.IO.Stream fileStream)
    {
        LogicClass.FileComponent rest = new LogicClass.FileComponent();
        return rest.AddStream(filename, fileStream);
    }

Windows Form project: for testing

    private void button24_Click(object sender, EventArgs e)
    {
        byte[] fileStream;
        using (FileStream fs = new FileStream(&quot;E:\\stream.txt&quot;, FileMode.Open, FileAccess.Read, FileShare.Read))
        {
            fileStream = new byte[fs.Length];
            fs.Read(fileStream, 0, (int)fs.Length);
            fs.Close();
            fs.Dispose();
        }

        string baseAddress = &quot;http://localhost:3446/File/AddStream/stream.txt&quot;;
        HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(baseAddress);
        request.Method = &quot;POST&quot;;
        request.ContentType = &quot;text/plain&quot;;
        Stream serverStream = request.GetRequestStream();
        serverStream.Write(fileStream, 0, fileStream.Length);
        serverStream.Close();
        using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
        {
            int statusCode = (int)response.StatusCode;
            StreamReader reader = new StreamReader(response.GetResponseStream());
        }
    }

I&#39;ve turned off the firewall and my Internet connection, but the error still exists. Is there a better way of testing the uploading method?

Stack trace:

&gt;at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
       at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket&amp; socket, IPAddress&amp; address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception&amp; exception)

  [1]: http://en.wikipedia.org/wiki/Representational_State_Transfer


No connection could be made because the target machine actively refused it 127.0.0.1:3446

What is the difference between `int`, `System.Int16`, `System.Int32` and `System.Int64` other than their sizes?

What is the difference between int, Int16, Int32 and Int64?

I have a program which declares an array of strings like this:

    char *colors[4] = {&quot;red&quot;, &quot;orange&quot;, &quot;yellow&quot;, &quot;blue&quot;};

But I get the above compiler warning. It compiles but I&#39;d rather use the non-deprecated way(if there is one). I&#39;ve tried to find out what it means, but I can&#39;t seem to figure it out. I&#39;ve heard using &#39;const&#39; before &#39;char&#39; works, but it would be helpful if someone could explain what the error means. Thanks.

Deprecated conversion from string literal to &#39;char*&#39;

I tried this example:

    /* itoa example */
    #include &lt;stdio.h&gt;
    #include &lt;stdlib.h&gt;

    int main ()
    {
        int i;
        char buffer [33];
        printf (&quot;Enter a number: &quot;);
        scanf (&quot;%d&quot;,&amp;i);
        itoa (i,buffer,10);
        printf (&quot;decimal: %s\n&quot;,buffer);
        itoa (i,buffer,16);
        printf (&quot;hexadecimal: %s\n&quot;,buffer);
        itoa (i,buffer,2);
        printf (&quot;binary: %s\n&quot;,buffer);
        return 0;
    }


but the example there doesn&#39;t work (it says the function `itoa` doesn&#39;t exist).

How to convert integer to string in C?

I have a text like this:

    text = &quot;&quot;&quot;&lt;div&gt;
    &lt;h1&gt;Title&lt;/h1&gt;
    &lt;p&gt;A long text........ &lt;/p&gt;
    &lt;a href=&quot;&quot;&gt; a link &lt;/a&gt;
    &lt;/div&gt;&quot;&quot;&quot;

using pure Python, with no external module I want to have this:

    &gt;&gt;&gt; print remove_tags(text)
    Title A long text..... a link

I know I can do it using **lxml.html.fromstring(text).text_content()** but I need to achieve the same in pure Python using builtin or std library for 2.6+

 

How can I do that?

Python code to remove HTML tags from a string

Let&#39;s say I have a standard Python string (such as one obtained from `raw_input()`), maybe `&quot;2 + 2&quot;` for simplicity&#39;s sake. 

I&#39;d like to convert this string to standard math operations in Python, such that `&quot;2 + 2&quot;` would return `4`. 

Is there an easy way to do this, or would I have to split on the spaces and parse each number/symbol manually, then do the math based on what I find? 

Do I want Regex?

Math operations from string

I have following lines of codes to compare String. str1 not equal to str2, which is understandable since it compares object reference. But then why s1 is equal to s2? 


    String s1 = &quot;abc&quot;;
    String s2 = &quot;abc&quot;;
		
    String str1 = new String(&quot;abc&quot;);
    String str2 = new String(&quot;abc&quot;);
		
    if (s1==s2)
        System.out.println(&quot;s1==s2&quot;);			
    else
        System.out.println(&quot;s1!=s2&quot;);
		
    if (str1==str2)
        System.out.println(&quot;str1==str2&quot;);			
    else
        System.out.println(&quot;str1!=str2&quot;);
		
    if (s1==str1)
        System.out.println(&quot;str1==s1&quot;);			
    else
        System.out.println(&quot;str1!=s1&quot;);

Output:

      s1==s2
      str1!=str2
      str1!=s1 

What makes reference comparison (==) work for some strings in Java?

I am building a String and the code looks like


    String status = &quot;The status of my combobox is &quot; + comboBoxTest.SelectedText

I am using WinForm in VS2010

The result looks like

&gt;&quot;The status of my combobox is &quot;

ComboBox.SelectedText doesn&#39;t give me the SelectedText

I have a requirement where I HAVE TO use bootstrap autocomplete dropdown, BUT user can have free form text in that dropdown if they wish. Before you think about TypeAhead, I could use Bootstrap TypeAhead textbox, but I need to have the dropdown becasue we want to give some default values as headstart options in case users dont know what to search for. 

I am using this with MVC DropDownListFor as that creates a select control for us.

I found this article which does that for me.

https://github.com/danielfarrell/bootstrap-combobox/pull/20

All I had to do was take off the name from the select control and the control was letting me enter free form text. All good so far.

Now, I am using this in conjunction with Knockoutjs. I bind my options and selected value to the select control and then on row rendered of my template, I called (selector).combobox() which makes the select control a bootstrap comobobox and adds an input control and hides the select control in the scenes behind.

The problem now is when I try to get he values to post to server, since the value I put in input box is not a valid options from the options I gave to select control, it is always setting it to the first option by default. This is becasue, I set the binding of the selected value on select control and not on the input box which was created by bootstrap-combobox.js. 

My question is how do I get the input box to data-bind to the same porperty as the the select control was bound to.

Any other options??
Let me know if you need more clarification or have questions.
Please suggest. 

Thanks.

twitter bootstrap autocomplete dropdown / combobox with Knockoutjs

I was under the impression you could type into a combo box besides selecting any values already in the list. However, I can&#39;t seem to find info on how to do this. Is there a property I need to add to it to allow typing of text?

HTML combo box with option to type an entry

Can anyone tell me how to get the selected item of a `ComboBox` to a `string` variable?

    string selected = cmbbox.SelectedItem.ToString();
    MessageBox.Show(selected);

This gives me `System.Data.DataRowView` in my `MessageBox`
 

How to get the selected item of a combo box to a string variable in c#

I need to be able to dynamically create `&lt;select&gt;` element and turn it into jQuery `.combobox()`. This should be element creation event, as opposed to some &quot;click&quot; event in which case I could just use jQuery `.on()`.

So does something like this exist?

    $(document).on(&quot;create&quot;, &quot;select&quot;, function() {
        $(this).combobox();
    }

I&#39;m reluctant to use livequery, because it&#39;s very outdated.

**UPDATE** The mentioned select/combobox is loaded via ajax into a jQuery colorbox (modal window), thus the problem - I can only initiate combobox using colorbox `onComplete`, however on change of one combobox another select/combobox must be dynamically created, therefor I need a more generic way to detect creation of an element (`select`in this case).

**UPDATE2** To try and explain the problem further - I have `select/combobox` elements created recursively, there is also a lot of initiating code inside `.combobox()`, therefore if I used a classic approach, like in [@bipen&#39;s answer](https://stackoverflow.com/a/15268861/82548), my code would inflate to insane levels. Hope this explains the problem better.

**UPDATE3** Thanks everyone, I now understand that since deprecation of `DOMNodeInserted` there is a void left in DOM mutation and there is no solution to this problem. I&#39;ll just have to rethink my application.

Content Type	Original Author	Original Content on Stackoverflow
Question	Iakovl	View Question on Stackoverflow
Solution 1 - C#	Reinaldo	View Answer on Stackoverflow
Solution 2 - C#	Justin Pihony	View Answer on Stackoverflow
Solution 3 - C#	sherin_	View Answer on Stackoverflow
Solution 4 - C#	Tates	View Answer on Stackoverflow
Solution 5 - C#	DevEstacion	View Answer on Stackoverflow

How to prevent manual input into a ComboBox in C#

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

Solution 4 - C#

Solution 5 - C#

tmux status bar configuration

Use regular expression to find/replace substring in NSString

Attributions