asp.net获取磁盘相关信息

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原作者: [db:作者] 来自: [db:来源] 收藏邀请

使用System.IO名称空间下的DriveInfo类别，可以获取磁盘相关信息。

代码

private DataTable GetDriveInfo(string driveName)
    {
        //new一个实例表
        DataTable dataTable = new DataTable();

        DataColumn dataColumn;
        //new一个字段
        dataColumn = new DataColumn();
        //字段存储的数据类型
        dataColumn.DataType = Type.GetType("System.String");
        //Gets the name of a drive.
        dataColumn.ColumnName = "Name";
        //把这个字段添加至表中。
        dataTable.Columns.Add(dataColumn);

        dataColumn = new DataColumn();
        dataColumn.DataType = Type.GetType("System.String");
        //Indicates the amount of available free space on a drive.
        dataColumn.ColumnName = "AvailableFreeSpace";
        dataTable.Columns.Add(dataColumn);

        dataColumn = new DataColumn();
        dataColumn.DataType = Type.GetType("System.String");
        //Gets the name of the file system, such as NTFS or FAT32.
        dataColumn.ColumnName = "Format";
        dataTable.Columns.Add(dataColumn);

        dataColumn = new DataColumn();
        dataColumn.DataType = Type.GetType("System.String");
        //Gets the drive type.
        dataColumn.ColumnName = "Type";
        dataTable.Columns.Add(dataColumn);

        dataColumn = new DataColumn();
        dataColumn.DataType = Type.GetType("System.String");
        //Gets a value indicating whether a drive is ready.
        dataColumn.ColumnName = "Ready";
        dataTable.Columns.Add(dataColumn);

        dataColumn = new DataColumn();
        dataColumn.DataType = Type.GetType("System.String");
        //Gets the root directory of a drive.
        dataColumn.ColumnName = "RootDirectory";
        dataTable.Columns.Add(dataColumn);

        dataColumn = new DataColumn();
        dataColumn.DataType = Type.GetType("System.String");
        //Gets the total amount of free space available on a drive.
        dataColumn.ColumnName = "FreeSpace";
        dataTable.Columns.Add(dataColumn);

        dataColumn = new DataColumn();
        dataColumn.DataType = Type.GetType("System.String");
        //Gets the total size of storage space on a drive.
        dataColumn.ColumnName = "TotalSize";
        dataTable.Columns.Add(dataColumn);

        dataColumn = new DataColumn();
        dataColumn.DataType = Type.GetType("System.String");
        //Gets or sets the volume label of a drive.
        dataColumn.ColumnName = "Volume";
        dataTable.Columns.Add(dataColumn);

        //new一个DriveInfo对象，并传入盘符
        DriveInfo objDi = new DriveInfo(driveName);
        DataRow dataRow;
        dataRow = dataTable.NewRow(); //表创建一行

        //下面是为字段赋值
        dataRow["Name"] = objDi.Name.ToString();
        dataRow["AvailableFreeSpace"] = objDi.AvailableFreeSpace.ToString();
        dataRow["Format"] = objDi.DriveFormat.ToString();
        dataRow["Type"] = objDi.DriveType.ToString();
        dataRow["Ready"] = objDi.IsReady.ToString();
        dataRow["RootDirectory"] = objDi.RootDirectory.ToString();
        dataRow["FreeSpace"] = objDi.TotalFreeSpace.ToString();
        dataRow["TotalSize"] = objDi.TotalSize.ToString();
        dataRow["Volume"] = objDi.VolumeLabel.ToString();

        //把行添加至表
        dataTable.Rows.Add(dataRow);
        dataTable.AcceptChanges();

        return dataTable;
    }

指定显示C盘信息至GridView控件上：

代码

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Data_Binding();
        }
    }

    private void Data_Binding()
    {
        //传入C盘
        this.GridView1.DataSource = GetDriveInfo("c");
        this.GridView1.DataBind();
    }

或者您可以显示所有磁盘，显示RadioButtonList控件上：

代码

<asp:RadioButtonList ID="rblDriveList" runat="server" AutoPostBack="true" RepeatDirection="Horizontal" RepeatColumns="10" OnSelectedIndexChanged="rblDriveList_SelectedIndexChanged">
</asp:RadioButtonList>

给RadioButtonList控件绑定数据源：

代码

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Data_Binding();
        }
    }

    private void Data_Binding()
    {
        List<string> driveList = new List<string>();
        DriveInfo[] allDrives = DriveInfo.GetDrives();

        foreach (DriveInfo di in allDrives)
        {
            driveList.Add(di.ToString().Substring(0,1));
        }

        this.rblDriveList.DataSource = driveList;
        this.rblDriveList.DataBind();
    }

点击磁盘盘符显示相应盘符信息：

代码

     protected void rblDriveList_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (rblDriveList.SelectedItem.Value == string.Empty) return;
        this.GridView1.DataSource = GetDriveInfo(rblDriveList.SelectedItem.Value);
        this.GridView1.DataBind();
    }