How to insert data in a particular row in listview item in c#?

Question

I have a listView. I want to add data in row number one, column number two. I have tried the following:

listView1.Items[0].Subitems[1].Text = "my data";

I get an error like this '0' is not a valid index. Then i tried this:

if (listViewDownloadList.SelectedItems.Count == -1)
        {
            listViewDownloadList.Items[0].SubItems[1].Text = "Hello";
        }

Now, nothing is happening. No insert, no error.

But it doesn't work. Can you help me out here?

Does your list view having item at index 1 which you want to update or you want to insert new row? — D Mishra
– D Mishra, Commented Aug 26, 2017 at 18:12
Sorry, there was a mistake in the code. I already have a row. There are six column in the row. Everyone of them has a value without column 2 that is items[0].Subitems[1]. I want to add data in that position. how can i do that? — Rubel Hosen
– Rubel Hosen, Commented Aug 26, 2017 at 18:28
Can you please explain did your list view have column index 1 to which you want to update? — D Mishra
– D Mishra, Commented Aug 26, 2017 at 18:44
yes, there are six column in the row. Everyone of then has data. I want to update the mentioned position. — Rubel Hosen
– Rubel Hosen, Commented Aug 27, 2017 at 7:15

D Mishra · Accepted Answer · 2017-08-26 18:17:57Z

2

You are getting the error '0' is not a valid index because your list view did not have any element. First you need to create a row like below-

 string[] row = { "Hello" };
 var listViewItem = new ListViewItem(row);

Then you need to add that row into listview like below-

listView1.Items.Add(listViewItem);

answered Aug 26, 2017 at 18:17

D Mishra

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3 Comments

Rubel Hosen Over a year ago

I already have a row. There are six column in the row. Every column has data without column 2. I want to add data in the column two. How can I do that?

Christopher Lake Over a year ago

Does this work listView1.Items[0].Subitems[1].Add("my data")?

Rubel Hosen Over a year ago

No, doesn't work. Says listViewItem.SubItem doesn't contain a definition for add

Ali Soltani · Accepted Answer · 2017-08-26 18:59:33Z

0

You can add only subitem to existing item in listView like this:

listView1.Location = new System.Drawing.Point(20, 20);
listView1.Width = 250;

// The View property must be set to Details for the 
// subitems to be visible.
listView1.View = View.Details;

// Each SubItem object requires a column, so add three columns.
this.listView1.Columns.Add("Key", 50, HorizontalAlignment.Left);
this.listView1.Columns.Add("Co1 1", 100, HorizontalAlignment.Left);
this.listView1.Columns.Add("Col 2", 100, HorizontalAlignment.Left);


// Add a ListItem (row1) object to the ListView.
ListViewItem row1 = new ListViewItem();
row1.Text = "Row 1";
row1.SubItems.Add("A");
row1.SubItems.Add("");
listView1.Items.Add(row1);


// Add a ListItem (row2) object to the ListView.
ListViewItem row2 = new ListViewItem();
row2.Text = "Row 2";
row2.SubItems.Add("");
row2.SubItems.Add("B");

listView1.Items.Add(row2);


// Add a SubItem to existing item (row1)
System.Windows.Forms.ListViewItem.ListViewSubItem item1 = new ListViewItem.ListViewSubItem();
item1.Text = "C";

listView1.Items[0].SubItems[2] = item1;

Result

edited Aug 26, 2017 at 18:59

answered Aug 26, 2017 at 18:36

Ali Soltani

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1 Comment

Ali Soltani Over a year ago

@Rubel Hosen Has my solution worked well? Solved your problem?

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