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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Collections.Specialized;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml.Linq;
using System.Web.DynamicData;
public partial class ForeignKey_EditField : System.Web.DynamicData.FieldTemplateUserControl {
protected void Page_Load(object sender, EventArgs e) {
if (DropDownList1.Items.Count == 0) {
if (!Column.IsRequired) {
DropDownList1.Items.Add(new ListItem("[Not Set]", ""));
}
PopulateListControl(DropDownList1);
}
}
protected override void OnDataBinding(EventArgs e) {
base.OnDataBinding(e);
if (Mode == DataBoundControlMode.Edit) {
string foreignkey = ForeignKeyColumn.GetForeignKeyString(Row);
ListItem item = DropDownList1.Items.FindByValue(foreignkey);
if (item != null) {
DropDownList1.SelectedValue = foreignkey;
}
}
}
protected override void ExtractValues(IOrderedDictionary dictionary) {
// If it's an empty string, change it to null
string val = DropDownList1.SelectedValue;
if (val == String.Empty)
val = null;
ExtractForeignKey(dictionary, val);
}
public override Control DataControl {
get {
return DropDownList1;
}
}
}
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