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namespace System.Web.DynamicData {
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Web.DynamicData.Util;
using System.Web.UI;
using System.Web.UI.WebControls;
public class DefaultAutoFieldGenerator : IAutoFieldGenerator {
private IMetaTable _metaTable;
public DefaultAutoFieldGenerator(MetaTable table)
: this((IMetaTable)table) {
}
internal DefaultAutoFieldGenerator(IMetaTable table) {
if (table == null) {
throw new ArgumentNullException("table");
}
_metaTable = table;
}
public ICollection GenerateFields(Control control) {
DataBoundControlMode mode = GetMode(control);
ContainerType containerType = GetControlContainerType(control);
// Auto-generate fields from metadata.
List<DynamicField> fields = new List<DynamicField>();
foreach (MetaColumn column in _metaTable.GetScaffoldColumns(mode, containerType)) {
fields.Add(CreateField(column, containerType, mode));
}
return fields;
}
protected virtual DynamicField CreateField(MetaColumn column, ContainerType containerType, DataBoundControlMode mode) {
string headerText = (containerType == ContainerType.List ? column.ShortDisplayName : column.DisplayName);
var field = new DynamicField() {
DataField = column.Name,
HeaderText = headerText
};
// Turn wrapping off by default so that error messages don't show up on the next line.
field.ItemStyle.Wrap = false;
return field;
}
internal static ContainerType GetControlContainerType(Control control) {
if (control is IDataBoundListControl || control is Repeater) {
return ContainerType.List;
} else if (control is IDataBoundItemControl) {
return ContainerType.Item;
}
return ContainerType.List;
}
internal static DataBoundControlMode GetMode(Control control) {
// Only item controls have distinct modes
IDataBoundItemControl itemControl = control as IDataBoundItemControl;
if (itemControl != null && GetControlContainerType(control) != ContainerType.List) {
return itemControl.Mode;
}
return DataBoundControlMode.ReadOnly;
}
}
}
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