Uredi

Deli z drugimi prek

ListItemCollection.FindByValue(String) Method

  • Reference

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Searches the collection for a ListItem with a Value property that contains the specified value.

public:
 System::Web::UI::WebControls::ListItem ^ FindByValue(System::String ^ value);
public System.Web.UI.WebControls.ListItem FindByValue (string value);
member this.FindByValue : string -> System.Web.UI.WebControls.ListItem
Public Function FindByValue (value As String) As ListItem

Parameters

value
String

The value to search for.

Returns

ListItem

A ListItem that contains the value specified by the value parameter.

Examples

ListItem myListItem = SearchType.SelectedItem;
ListItem crItem = null;
String searchText = TextBox1.Text;
if(myListItem.Value == "Name")
{
    if(TextBox1.Text != "")
    {
        String searchSubfir = searchText.Substring(0,1);
        String searchSubsec = searchText.Substring(1);
        searchText = searchSubfir.ToUpper()+searchSubsec.ToLower();

        // Search by country or region name.
        crItem = ItemCollection.FindByText(searchText);
    }
}
else
{
    // Search by country or region code.
    crItem = ItemCollection.FindByValue(searchText.ToUpper());
}

String str = "Search is successful. Match is Found.<br />";
str =str + "The results for search string '" + searchText + "' are:<br />";
str = str + "the country or region code is " + crItem.Value + "<br />";
str = str + "the country or region name is " + crItem.Text;

// Add the string to the label.
Label1.Text = str;


  Dim myListItem As ListItem = SearchType.SelectedItem
  Dim crItem As ListItem 
  Dim searchText As String  = TextBox1.Text
  If(myListItem.Value = "Name") Then
      If(TextBox1.Text <> "" ) Then        
          Dim searchSubfirst As String = searchText.Substring(0,1)
          Dim searchSubsecond As String = searchText.Substring(1)
          searchText = searchSubfirst.ToUpper()+searchSubsecond.ToLower()
          ' Search by country or region name.                       
          crItem = ItemCollection.FindByText(searchText)    
      End If            
  Else
      'Search by country or region code.
      crItem = ItemCollection.FindByValue(searchText.ToUpper())
  End If
  
  Dim str As String  = "Search is successful. Match is Found.<br />"
  str = str & "The results for search string '" & searchText & "' are:<br />"
  str = str & "the country or region code is: " & crItem.Value & "<br />"
  str = str & "the country or region name is: " & crItem.Text
  ' Add the string to the label.
  Label1.Text = str

Remarks

Use the FindByValue method to search the collection for a ListItem with a Value property that contains value specified by the value parameter. This method performs a case-sensitive and culture-insensitive comparison. This method does not do partial searches or wildcard searches. If an item is not found in the collection using this criteria, null is returned.

Applies to

See also