c# - 如何将列表数组与 GridView 或 DataList 绑定(bind)？

Question

我创建了一个列表数组。该数组有七行，代表星期几，列表包含医生预约的可用位置。我试图将它与 GridView 或 DataList (无论哪个更合适)绑定(bind)，但没有成功。

我已经声明了列表:

List<string>[] list=new List<string>[7]; //An array of 7 lists
                    for (int i = 0; i < 7; i++)
                    {
                        list[i]=new List<string>();
                    }

我已经在列表中填入了表示可以预约医生的空档的字符串。

我想要实现的结果是其中一位医生的可用性，如本网站所示:link

Answer 1

您可以将数组更改为 List<List<string>>像这样:

List<List<string>> list = new List<List<string>>();

然后你可以将它绑定(bind)到一个GridView通过以下方式(只需适应您的情况):

protected void Page_Load(object sender, EventArgs e)
{
    List<string> cols = GetColDefsFromBackend();
    List<List<string>> rows = GetDataFromBackend();


    GridView1.DataSource = CreateDataTable(cols, rows);
    GridView1.DataBind();
}


private System.Data.DataTable CreateDataTable(List<string> columnDefinitions, List<List<string>> rows)
{
    DataTable table = new DataTable();
    foreach (string colDef in columnDefinitions)
    {
        DataColumn column;
        column = new DataColumn();
        column.DataType = typeof(string);
        column.ColumnName = colDef;
        table.Columns.Add(column);
    }


    // Create DataRow and Add it to table
    foreach (List<string> rowData in rows)
    {
        DataRow row = table.NewRow();
        // rowData is in same order as columnDefinitions
        for (int i = 0; i < rowData.Count; i++)
        {
            row[i] = rowData[i];
        }
        table.Rows.Add(row);
    }


    return table;
}


/// <summary>
/// Simulates a StoredProcedureCall which returns
/// the data in a List with Lists of strings
/// </summary>
private List<List<string>> GetDataFromBackend()
{
    List<List<string>> myData = new List<List<string>>();
    myData.Add(Row(1));
    myData.Add(Row(2));
    myData.Add(Row(3));
    return myData;
}


private List<string> Row(int p)
{
    List<string> row = new List<string>();
    for (int i = 0; i < 4; i++)
    {
        row.Add(string.Format("Column {0}/{1}", p, i));
    }
    return row;
}     

private List<string> GetColDefsFromBackend()
{
    List<string> cols = new List<string>();
    cols.Add("Col1");
    cols.Add("Col2");
    cols.Add("Col3");
    cols.Add("Col4");
    return cols;
}

来源:Use List<List<string>> as GridView - DataSource