CODEWITHSUNDEEP
c#listview
Rubel Hosen
Rubel Hosen

Reputation: 309

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

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?

Upvotes: 2

Views: 3671

Answers (2)

Ali Soltani
Ali Soltani

Reputation: 9946

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

listView

Upvotes: 0

D Mishra
D Mishra

Reputation: 1578

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);

Upvotes: 2

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