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binding ArrayLists to DataGrids-- how to name the columns?I'm binding an ArrayList to a DataGrid for the first time (I'm used to binding DataSets and DataTables) and I was wondering if I could somehow "name" the ArrayList, so that I can refer to it as a DataField in an asp:BoundColumn? In essence, I'm doing this: ArrayList Arr1 = new ArrayList(); Arr1.Add("John"); Arr1.Add("Melissa"); Arr1.Add("Tim"); MyDataGrid.DataSource = Arr1; MyDataGrid.DataBind(); Now I'd like to use an <asp:BoundColumn> control in the DataGrid, but I don't know what the DataField value is for the ArrayList I just added. Can I somehow associate a DataField value with the ArrayList? Hi,
Try the following way. Instead of adding string into the arrylist add class objects exposing required properties. class Task { private string _TaskName; private string _Editable; private int _Priority; public Task(string TaskName, string Editable, int Priority) { _TaskName = TaskName; _Editable = Editable; _Priority = Priority; } public string TaskName { get { return _TaskName; } } public string Editable { get { return _Editable; } } public int Priority { get { return _Priority; } } } /// <summary> /// Summary description for WebForm2. /// </summary> public class WebForm2 : System.Web.UI.Page { protected System.Web.UI.WebControls.DropDownList DropDownList1; public ArrayList Arr1; private void Page_Load(object sender, System.EventArgs e) { ArrayList arr = new ArrayList(); // Start initial creation and filling of array. arr.Add (new Task ("Tomorrow's work", "yes", 2)); arr.Add (new Task ("Today's work", "yes", 1)); arr.Add (new Task ("Yesterday's work", "No", 3)); DropDownList1.DataSource = arr; DropDownList1.DataTextField = "TaskName"; DropDownList1.DataValueField = "Priority"; DropDownList1.DataBind(); DropDownList1.Attributes.Add("onChange","Javascript: alert(this.value)") ; } } Regards, Sambathraj Show quoteHide quote "Jim Bancroft" <asdfs***@nowhere.com> wrote in message news:OTq8DRRTFHA.632@TK2MSFTNGP10.phx.gbl... > Hi everyone, > > I'm binding an ArrayList to a DataGrid for the first time (I'm used to > binding DataSets and DataTables) and I was wondering if I could somehow > "name" the ArrayList, so that I can refer to it as a DataField in an > asp:BoundColumn? > > In essence, I'm doing this: > > ArrayList Arr1 = new ArrayList(); > > Arr1.Add("John"); > Arr1.Add("Melissa"); > Arr1.Add("Tim"); > > MyDataGrid.DataSource = Arr1; > MyDataGrid.DataBind(); > > Now I'd like to use an <asp:BoundColumn> control in the DataGrid, but I > don't know what the DataField value is for the ArrayList I just added. > Can I somehow associate a DataField value with the ArrayList? > > I have the same problem. I want bind a DataGrid to a string array which
seems like it should be a simple thing to do. I have <Columns> <asp:BoundColumn> HeaderText = "File Name"</asp:BoundColumn> <asp:ButtonColumn> Text = "Download" HeaderText = <asp:ButtonColumn> Text = "View" HeaderText = "View"</asp:ButtonColumn> "Download"</asp:ButtonColumn> </Columns>In the code I have: <snip> dg.DataSource = outQueue.FileList; // string [] dbDataBind(); </snip> With AutoGenerateColumns = "false", the DataGrid is empty. If I set AutoGenerateColumns = "true" I get a 4th column labled "Item" which contains my FileList. How do I get my FileList inside my first column? It would seem it is an easy thing to do. Show quoteHide quote "Jim Bancroft" <asdfs***@nowhere.com> wrote in message news:OTq8DRRTFHA.632@TK2MSFTNGP10.phx.gbl... > Hi everyone, > > I'm binding an ArrayList to a DataGrid for the first time (I'm used to > binding DataSets and DataTables) and I was wondering if I could somehow > "name" the ArrayList, so that I can refer to it as a DataField in an > asp:BoundColumn? > > In essence, I'm doing this: > > ArrayList Arr1 = new ArrayList(); > > Arr1.Add("John"); > Arr1.Add("Melissa"); > Arr1.Add("Tim"); > > MyDataGrid.DataSource = Arr1; > MyDataGrid.DataBind(); > > Now I'd like to use an <asp:BoundColumn> control in the DataGrid, but I > don't know what the DataField value is for the ArrayList I just added. > Can I somehow associate a DataField value with the ArrayList? > >
I've lost my drop down list box!
Columns are displayed twice DataRowView - deleting rows: A little quiz -or- Why doesn't this work... Show Date only from DateTime in DataGrid Wrong window gets the content Export to excel problem Need to create Hieararical DataGrid using ASP.Net Datagrid !!! MXDatagrid paging problem ItemStyle question Datagrid Moving up and down |
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