Prevent Duplicates Insert data in ListView

This my code :

ListViewItem lst1 = new ListViewItem(); lst1.SubItems.Add(txtKodeJob.Text); lst1.SubItems.Add(gridLookUpEditJob.Text); lst1.SubItems.Add(gridLookUpEditJF.Text); lst1.SubItems.Add(txtQty.Text); lst1.SubItems.Add(txtTarget.Text); lst1.SubItems.Add(deStart.Text); lst1.SubItems.Add(deEnd.Text); lst1.SubItems.Add(txtDurasiHari.Text); lst1.SubItems.Add(txtNotes.Text); listView1.Items.Add(lst1);

How to prevent duplicate data from TextBox in C#?

-------------Problems Reply------------

The ListView class provides a few different methods to determine if an item exists:

Using Contains on the Items collection Using one of the FindItemWithText methods They can be used in the following manner:

// assuming you had a pre-existing item
ListViewItem item = ListView1.FindItemWithText("test");
if (!ListView1.Items.Contains(item))
// doesn't exist, add it

// or you could find it by the item's text value
ListViewItem item = ListView1.FindItemWithText("test");
if (item != null)
// it exists
// doesn't exist

// you can also use the overloaded method to match sub items
ListViewItem item = ListView1.FindItemWithText("world", true, 0);

Category:c# Views:13 Time:2019-01-01
Tags: listview

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