Width Property

ColumnHeader::Width Property

 

Gets or sets the width of the column.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public:
property int Width {
	int get();
	void set(int value);
}

Property Value

Type: System::Int32

The width of the column, in pixels.

This property enables you to set the Width of the ColumnHeader. The ColumnHeader can be set to adjust at run time to the column contents or heading. To adjust the width of the longest item in the column, set the Width property to -1. To autosize to the width of the column heading, set the Width property to -2.

System_CAPS_noteNote

Unexpected behavior can result when the combined width of all columns exceeds 32,768 pixels.

The following code example demonstrates initializing a ListView control. The example creates ColumnHeader objects and sets the column header's Text, TextAlign and Width properties. The example also adds items and subitems to the ListView. To run this example paste the following code in a form and call the PopulateListView method from the form's constructor or Load event handler.

private:
   void PopulateListView()
   {
      ListView1->Width = 270;
      ListView1->Location = System::Drawing::Point( 10, 10 );

      // Declare and construct the ColumnHeader objects.
      ColumnHeader^ header1;
      ColumnHeader^ header2;
      header1 = gcnew ColumnHeader;
      header2 = gcnew ColumnHeader;

      // Set the text, alignment and width for each column header.
      header1->Text = "File name";
      header1->TextAlign = HorizontalAlignment::Left;
      header1->Width = 70;
      header2->TextAlign = HorizontalAlignment::Left;
      header2->Text = "Location";
      header2->Width = 200;

      // Add the headers to the ListView control.
      ListView1->Columns->Add( header1 );
      ListView1->Columns->Add( header2 );

	  // Specify that each item appears on a separate line.
      ListView1->View = View::Details;

	  // Populate the ListView.Items property.
      // Set the directory to the sample picture directory.
      System::IO::DirectoryInfo^ dirInfo = gcnew System::IO::DirectoryInfo( "C:\\Documents and Settings\\All Users"
      "\\Documents\\My Pictures\\Sample Pictures" );

      // Get the .jpg files from the directory
      array<System::IO::FileInfo^>^files = dirInfo->GetFiles( "*.jpg" );

      // Add each file name and full name including path
      // to the ListView.
      if ( files != nullptr )
      {
         System::Collections::IEnumerator^ myEnum = files->GetEnumerator();
         while ( myEnum->MoveNext() )
         {
            System::IO::FileInfo^ file = safe_cast<System::IO::FileInfo^>(myEnum->Current);
            ListViewItem^ item = gcnew ListViewItem( file->Name );
            item->SubItems->Add( file->FullName );
            ListView1->Items->Add( item );
         }
      }
   }

.NET Framework
Available since 1.1
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