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add SPListItem to a SPListItemCollection

I have the following code for load a list from sharepoint site.
ALl is working well exept a SPList item to SPListItemCollection.
private void Data_load()
{
DataTable dt = new DataTable();
string currentName = SPContext.Current.Web.CurrentUser.Name;
SPQuery query = new SPQuery();
query.Query = "<Where><Eq><FieldRef Name='Editor'/><Value Type='Person or Group'>" + currentName + "</Value></Eq></Where>";
using (SPSite site = new SPSite("http://spdev-6/"))
{
using (SPWeb web = site.OpenWeb())
{
SPList lists = web.GetList("Lists/Advertisements");
SPListItemCollection items = lists.GetItems(query);
if (items.Count > 0)
{
DataRow dr=null;
SPListItemCollection ITEM = null;
foreach(SPListItem item in items)
{
string A = item["Approval Status"].ToString();
if(A== "2")
{
ITEM.Add(item);
}
}
if(dt.Rows.Count==0)
lbldata.Text = "No data to show";
// dt = items.GetDataTable();
}
else
lbldata.Text = "No data to show";
GridViewD.DataSource = dt;
GridViewD.DataBind();
HttpContext.Current.Session["Advertisement"] = dt;
}
}
}
Now in if(A== "2"){ ITEM.Add(item); }
I want to add SPListItem to a SPListItemCollection. Please help.

You are trying to add an item into null because your ITEM is null. I don't know what error you are getting ( your don't write it) but you must initialize your collection:
if (items.Count > 0)
{
DataRow dr=null;
SPListItemCollection ITEM = ... //
foreach(SPListItem item in items)
{
string A = item["Approval Status"].ToString();
if(A== "2")
{
SPListItem myItem = ITEM.Add();
// set your item's fields here
// Use indexers on this object for each field to assign specific values, and then call the Update method on the item to effect changes in the database.
myItem["Approval Status"] = item["Approval Status"];
...
myItem.Update();
}
}
if(dt.Rows.Count==0)
lbldata.Text = "No data to show";
// dt = items.GetDataTable();
}

Bind ListItemCollection as a DataSource of a DataGridView

I am using SharePoint Server 2013. I am trying to show a list data in a DataGridView in a windows forms application(client application). I obtained the ListItemCollection object related to the specific list. How can I map that object to the datasource of the DataGridView?
I can't find any specific way to obtain a DataTable object from the ListItemCollection object. Because the list I used to obtain data is selected by a drop down list. So there is no predetermined columns for a Datatable object. Thanks in advance. :)

try this one -
ListItemCollection items = GetListItemCollections(); //Get list item collection
DataTable dt = new DataTable();
foreach (var field in items[0].FieldValues.Keys)
{
dt.Columns.Add(field);
}
foreach (var item in items)
{
DataRow dr = dt.NewRow();
foreach (var obj in item.FieldValues)
{
if (obj.Value != null)
{
string type = obj.Value.GetType().FullName;
if (type == "Microsoft.SharePoint.Client.FieldLookupValue")
{
dr[obj.Key] = ((FieldLookupValue)obj.Value).LookupValue;
}
else if (type == "Microsoft.SharePoint.Client.FieldUserValue")
{
dr[obj.Key] = ((FieldUserValue)obj.Value).LookupValue;
}
else
{
dr[obj.Key] = obj.Value;
}
}
else
{
dr[obj.Key] = null;
}
}
dt.Rows.Add(dr);
}
ResetDataGridView(); //Clear contents of datagridview
dataGridView1.DataSource = dt;
Hope this helps..
Thanks

Below function will return you DataTable.
internal DataTable GetDataTableFromListItemCollection()
{
string strWhere = string.Empty;
DataTable dtGetReqForm = new DataTable();
using (var clientContext = new ClientContext("sharepoint host url"))
{
try
{
Microsoft.SharePoint.Client.List spList = clientContext.Web.Lists.GetByTitle("ReqList");
clientContext.Load(spList);
clientContext.ExecuteQuery();
if (spList != null && spList.ItemCount > 0)
{
Microsoft.SharePoint.Client.CamlQuery camlQuery = new CamlQuery();
camlQuery.ViewXml =
#"<View>" +
"<Query> " +
"<Where>" +
"<And>" +
"<IsNotNull><FieldRef Name='ID' /></IsNotNull>" +
"<Eq><FieldRef Name='ReqNo' /><Value Type='Text'>123</Value></Eq>" +
"</And>" +
"</Where>" +
"</Query> " +
"<ViewFields>" +
"<FieldRef Name='ID' />" +
"</ViewFields>" +
"</View>";
SPClient.ListItemCollection listItems = spList.GetItems(camlQuery);
clientContext.Load(listItems);
clientContext.ExecuteQuery();
if (listItems != null && listItems.Count > 0)
{
foreach (var field in listItems[0].FieldValues.Keys)
{
dtGetReqForm.Columns.Add(field);
}
foreach (var item in listItems)
{
DataRow dr = dtGetReqForm.NewRow();
foreach (var obj in item.FieldValues)
{
if (obj.Value != null)
{
string key = obj.Key;
string type = obj.Value.GetType().FullName;
if (type == "Microsoft.SharePoint.Client.FieldLookupValue")
{
dr[obj.Key] = ((FieldLookupValue)obj.Value).LookupValue;
}
else if (type == "Microsoft.SharePoint.Client.FieldUserValue")
{
dr[obj.Key] = ((FieldUserValue)obj.Value).LookupValue;
}
else if (type == "Microsoft.SharePoint.Client.FieldUserValue[]")
{
FieldUserValue[] multValue = (FieldUserValue[])obj.Value;
foreach (FieldUserValue fieldUserValue in multValue)
{
dr[obj.Key] += (fieldUserValue).LookupValue;
}
}
else if (type == "System.DateTime")
{
if (obj.Value.ToString().Length > 0)
{
var date = obj.Value.ToString().Split(' ');
if (date[0].Length > 0)
{
dr[obj.Key] = date[0];
}
}
}
else
{
dr[obj.Key] = obj.Value;
}
}
else
{
dr[obj.Key] = null;
}
}
dtGetReqForm.Rows.Add(dr);
}
}
}
}
catch (Exception ex)
{
}
finally
{
if (clientContext != null)
clientContext.Dispose();
}
}
return dtGetReqForm;
}
//once you have the DataTable() with you you can set the DataSource
//DataGridView1 is the id value
DataGridView1.DataSource = GetDataTableFromListItemCollection();

Programatically select and bind Sharepoint list items

I have some code to bind SharePoint list items to text boxes. But I only got the code to bind one item. My list contains two columns (ID and Name):
*ID Name*
1 Steven
2 Joe
3 Henry
This code picks out the Name field from the first item (that means my textbox will show "Steven":
try
{
SPQuery query = new SPQuery();
query.Query = "";
query.ViewFields = "";
query.RowLimit = 100;
using (SPSite site = new SPSite(SPContext.Current.Web.Url))
{
using (SPWeb web = site.OpenWeb())
{
SPList list = web.Lists.TryGetList("Employee List");
if (list != null)
{
if (list.GetItems(query).GetDataTable() != null)
{
DataTableReader rdr = list.GetItems(query).GetDataTable().CreateDataReader();
if (rdr.Read())
{
TextBox1.Text = rdr["Name"].ToString();
rdr.Close();
}
}
}
}
}
}
How to select the rest of them names? I was thinking about an if-statement to check if field = ID (1, 2, 3) etc. but couldn't find out anything.

Use a while loop and it should loop through all the "Name" values.
if (list.GetItems(query).GetDataTable() != null)
{
using (DataTableReader rdr = list.GetItems(query).GetDataTable().CreateDataReader())
{
while (rdr.Read())
{
TextBox1.Text = rdr["Name"].ToString();
}
}
}
Addtionally you should be using a using statement to ensure that Dispose() and Close() are both called on the DataTableReader.

Get creation date for the file with SharpSvn

I'm playing with SharpSvn and have to analyze folder in repository
and I need to know when some file has be created there,
not last modification date, but when it was created,
Do you have any idea how to do that?
I started with the following:
Collection<SvnLogEventArgs> logitems;
var c = client.GetLog(new Uri(server_path), out logitems);
foreach (var i in logitems)
{
var properties = i.CustomProperties;
foreach (var p in properties)
{
Console.WriteLine(p.ToString());
Console.WriteLine(p.Key);
Console.WriteLine(p.StringValue);
}
}
But I don't see any creation date there.
Does someone know where to get it?

Looks like I can't do that. Here is how I solved this problem:
I'm getting the time if it was the SvnChangeAction.Add.
Here is the code (SvnFile is my own class, not from SharpSvn):
public static List<SvnFile> GetSvnFiles(this SvnClient client, string uri_path)
{
// get logitems
Collection<SvnLogEventArgs> logitems;
client.GetLog(new Uri(uri_path), out logitems);
var result = new List<SvnFile>();
// get craation date for each
foreach (var logitem in logitems.OrderBy(logitem => logitem.Time))
{
foreach (var changed_path in logitem.ChangedPaths)
{
string filename = Path.GetFileName(changed_path.Path);
if (changed_path.Action == SvnChangeAction.Add)
{
result.Add(new SvnFile() { Name = filename, Created = logitem.Time });
}
}
}
return result;
}

Slightly different code than the previous one:
private static DateTime findCreationDate(SvnClient client, SvnListEventArgs item)
{
Collection<SvnLogEventArgs> logList = new Collection<SvnLogEventArgs>();
if (item.BasePath != "/" + item.Name)
{
client.GetLog(new Uri(item.RepositoryRoot + item.BasePath + "/" + item.Name), out logList);
foreach (var logItem in logList)
{
foreach (var changed_path in logItem.ChangedPaths)
{
string filename = Path.GetFileName(changed_path.Path);
if (filename == item.Name && changed_path.Action == SvnChangeAction.Add)
{
return logItem.Time;
}
}
}
}
return new DateTime();
}

How to add a number of records into a List<T>

I have created an asp.net application using Entity Framework. In this I want to add the records into a list. For this I have to use the foreach loop but it always adding only last record data for all records, meaning it's showing same data. Here I have pasted my code. Please verify it once and guide where I can change.
public List<CategoryItems> ListMenuCategory(int MenuId)
{
string str = string.Empty;
string strJSON = string.Empty;
List<CategoryItems> resultmenu;
resultmenu = new List<CategoryItems>();
List<CategoryItems> Result;
Result = new List<CategoryItems>();
bool check = true;
var objmenuCategory = from cat in objEntity.menucategories where cat.MenuId == MenuId && cat.Active == check select cat;
CategoryItems Categorylist = new CategoryItems();
foreach (menucategory category in objmenuCategory)
{
Categorylist.CategoryName = category.CategoryName;
Categorylist.Description = category.Description;
int menuid = category.MenuCategoryId;
List<menuitem> menuitems = GetMenucategories(menuid);
foreach (var items in menuitems)
{
Categorylist.ItemName = items.ItemName;
Categorylist.Description = items.Description;
Categorylist.Price = (float)items.Price;
string Image = items.Picture;
Categorylist.Picture = "http://restaurantmanager.testshell.net/Images/" + Image;
Categorylist.Thumbnail = "http://restaurantmanager.testshell.net/Images/" + items.Thumbnail;
if (items.CreatedDate != null)
{
Categorylist.CreatedDate = (DateTime)items.CreatedDate;
}
if (items.ModifiedDate != null)
{
Categorylist.ModifiedDate = (DateTime)items.ModifiedDate;
}
Result.Add(Categorylist);
}
// Result.AddRange(menus);
}
return Result;
}
private List<menuitem> GetMenucategories(int p)
{
restaurantEntities objEntity1 = new restaurantEntities();
var menuitems = from items in objEntity1.menuitems where items.MenuCategoryId == p select items;
return menuitems.ToList();
}

You are creating the Categorylist item outside of the loops, so you are only using one single item, filling it with different data and adding it over and over to the result.
You have to create the item inside the innermost loop, so that each iteration gets its own object.
Note: ChrisF also spotted that you call AddRange inside the loop, which has the result that you will add the same set of items over and over. You don't need to call AddRange at all, you can just skip the Result list entirely and just return resultmenu instead.