using F = System.Windows.Forms;
using Microsoft.SharePoint.Client;
using PnP = OfficeDevPnP.Core;
try
{
PnP.AuthenticationManager authManager = new PnP.AuthenticationManager();
using (ClientContext clientContext = authManager.GetWebLoginClientContext(txtSourceUrl.Text))
{
List list = clientContext.Web.Lists.GetByTitle(drpLists.SelectedItem.ToString());
CamlQuery camlQuery = new CamlQuery();
camlQuery.ViewXml = "<View><Query><Where><Neq><FieldRef Name='ID' /><Value Type='Counter'>0</Value></Neq></Where></Query></View>";
ListItemCollection allItems = list.GetItems(camlQuery);
clientContext.Load(allItems);
clientContext.ExecuteQuery();
int itemCount = allItems.Count;
F.MessageBox.Show("Deletion is started. Please monitor the count on SharePoint.");
if (itemCount > 0)
{
for (int i = itemCount - 1; i > -1; i--)
{
allItems[i].DeleteObject();
clientContext.ExecuteQuery();
}
}
F.MessageBox.Show("Items are deleted.");
}
}
catch (Exception ex)
{
F.MessageBox.Show("Error: " + ex.Message);
}
}
using Microsoft.SharePoint.Client;
using PnP = OfficeDevPnP.Core;
try
{
PnP.AuthenticationManager authManager = new PnP.AuthenticationManager();
using (ClientContext clientContext = authManager.GetWebLoginClientContext(txtSourceUrl.Text))
{
List list = clientContext.Web.Lists.GetByTitle(drpLists.SelectedItem.ToString());
CamlQuery camlQuery = new CamlQuery();
camlQuery.ViewXml = "<View><Query><Where><Neq><FieldRef Name='ID' /><Value Type='Counter'>0</Value></Neq></Where></Query></View>";
ListItemCollection allItems = list.GetItems(camlQuery);
clientContext.Load(allItems);
clientContext.ExecuteQuery();
int itemCount = allItems.Count;
F.MessageBox.Show("Deletion is started. Please monitor the count on SharePoint.");
if (itemCount > 0)
{
for (int i = itemCount - 1; i > -1; i--)
{
allItems[i].DeleteObject();
clientContext.ExecuteQuery();
}
}
F.MessageBox.Show("Items are deleted.");
}
}
catch (Exception ex)
{
F.MessageBox.Show("Error: " + ex.Message);
}
}
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