My Development Notes

Controls

protected void Playback_Command(object sender, CommandEventArgs e) {
    switch (e.CommandName) {
        case "Previous": 
            break; 
        case "Next":
            break; 
    }
}

protected void Page_Load(object sender, EventArgs e) {
    ImageMap imageMap = new ImageMap(); 
    imageMap.ImageUrl = "images/image.jpg"; 
    imageMap.HotSpotMode = HotSpotMode.PostBack; 
    Controls.Add(imageMap); 

    RectangleHotSpot hotspot = new RectangleHotSpot(); 
    hotspot.Top, .Bottom, .Left, .Right = 
    hotspot.PostBackValue = "Area 1"; 
    imageMap.HotSpots.Add(hotspot); 
}

protected void ImageMapStopLight_Click(object sender, ImageMapEventArgs e) {
    e.PostBackValue; 
}

protected void Calendar_DayRender(object sender, DayRenderEventArgs e) {
    if(e.Day.Date == DateTime.Now()) {
        e.Cell.Controls.Add(new Literal("Today")); 
    }
}

protected void Button_Click(object sender, DayRenderEventArgs e) {
    if(FileUpload1.HasFile) {
        FileUpload1.FileBytes.Length
        FileUpload1.FileName
        FileUpload1.PostedFile.ContentType
        FileUpload1.SaveAs(MapPath("~/Uploads/" + FileUpload1.FileName); 
    }
}

Xml1.DocumentSource = "App_Data/Data.xml"; 
Xml1.TransformSource = "App_Data/DataTransform.xsl"; 

Data Source and Data Bound Controls

ObjectDataSource

public class Customers {
    public static IEnumerable|IListSource|IDataSource|IHierarchicalDatasource GetCustomers() { .. }
}


<asp:ObjectDataSource ID="ObjectDataSource1" runat="server" TypeName="Customers" SelectMethod="GetCustomers" [SortParameterName="sortCol" StartRowIndexParameterName="pageStart" MaximumRowsParameterName="numRecords"]
[EnableCaching="true" CacheDuration="30"]/> 
//If SelectMethod has parameters embed the following in ObjectDataSource
<SelectParameters>
    <asp:QueryStringParameter> Name="customerId" QueryStringField="custId" Type="string"/> 

</SelectParameters>  

//InsertMethod, UpdateMethod, DeleteMethod defined in the same way.
//FilterExpression="param='{0}' combined with FilterParameters (filtered after the database call)

<asp:DetailsView ID="DetailsView1" runat="server" DataSourceID="ObjectDataSource1" AllowPaging="true" PageSize="10" AllowSorting="true"
AutoGenerateRows = "false"> 
<Fields> 
<asp:BoundField> DataField="CustomerID" ReadOnly="true" InsertVisible="false"/> 
...
</Fields> 
</asp:DetailsView> 

SqlDataSource

<asp:SqlDataSource ID="SqlDataSource1" ConnectionString="<%$ ConnectionStrings:MyConnectionString %>" 
SelectCommandType="Text" SelectCommand="SELECT * FROM Customers WHERE Group=@Group" DataSourceMode="DataReader"/> 
//Use SelectParameters similar to ObjectDataSource for mapping to @Group parameter

XmlDataSource

<asp:XmlDataSource ID="XmlDataSource1" DataFile="~/App_Data/products.xml" TransformFile="~/App_Data/ProductTransform.xsl" XPath="/Products/Product[Category='Category: Beverages']" /> 
//Contains no functionality for insert / delete / update

LinqDataSource

<asp:LinqDataSource ID="LinqDataSource1" ContextTypeName="NorthwindDataContext" EnableInsert="true" EnableUpdate="true" OrderBy="CompanyName" TableName="Suppliers" Where="Country== @Country"> 
<WhereParameters> 
<asp:QueryStringParameter> ....
</WhereParameters> 
</asp:LinqDataSource> 

Data Bound Controls

• ListBox
• DropDownListBox
• ListBox
• CheckBoxList
• RadioButtonList
• BulletedList

The above have DataSourceID, DataTextField, DataValueField properties.

GridView

 [AllowPaging]
 [AllowSorting]
 [AutoGenerateColumns]
 [DataKeyNames="columnName"]
 [DataSourceID]
 Columns
    asp:CommandField [ShowDeleteButton] [ShowEditButton] [ShowSelectButton]
    asp:BoundField [DataField] [HeaderText] [ReadOnly] [SortExpression="columnName"]
    asp:CheckBoxField [DataField] [HeaderText] [ReadOnly] [SortExpression="columnName"]

Text='<%# Bind("ProductName") %>>' //two way databinding for GridView, DetailsView, FormView otherwise use Eval

DetailsView

Same as GridView except define Fields instead of Columns. Automatically renders one item at a time.

FormView

Need to define ItemTemplate has AllowPaging attribute.

Repeater

Need to define ItemTemplate displays all records.

Text='<%# Eval("ProductName") %>>' //for controls in ItemTemplate to bind to data source.

ListView

Need to define LayoutTemplate which then contains a div with ID itemPlaceholder for the ItemTemplate.

DataList

Like the repeater control but also has RepeatLayout and RepeatDirection properties.

TreeView

Need to bind to a IHierarchicalDataSource such as XmlDataSource.

DataBindings
    asp:TreeNodeBinding DataMember="Customer" TextField="Name" ValueField="CustomerId"
    asp:TreeNodeBinding DataMember="Order" TextField="ShipDate" ValueField="OrderId"

Web Parts