如何将组合框的选定索引添加到列表视图中的列

Question

I have found variations of this, but nothing that fixed the problem. So here it goes:

I am using Winforms. I have a combobox and a listview with 3 columns. The user can either select an existing value from the combobox or add their own value through a textbox and a button. This all works okay.

Here is where I run into problems: I want the user to be able to select a value, in this case a category, from the combobox and display that in the listview under the "Category" column.

I am in the process of teaching myself C#, this is day 2 so bear with me please.

My listview code:

    private void Form1_Load(object sender, EventArgs e)
    {
        //Calls the function that adds properties to the listview
        PopulateListView();
        btnEditDesiredEnd.BackColor = Color.LightGray;
        btnDeposit.BackColor = Color.LightGray;

    }

    public void PopulateListView()
    {
        //Listview Properties:
        //Listview Details 
        lstView.View = View.Details;
        //Allow user to edit labels
        lstView.LabelEdit = true;
        //Allow user to change column order
        lstView.AllowColumnReorder = true;
        //Display checkboxes
        //lstView.CheckBoxes = true;
        //Display gridlines
        lstView.GridLines = true;
        //Allows user to select entire row
        lstView.FullRowSelect = true;


        //Create columns, width of -2 indicates auto-size
        lstView.Columns.Add("Transaction", 70, HorizontalAlignment.Center);
        lstView.Columns.Add("Category", 130, HorizontalAlignment.Center);
        lstView.Columns.Add("Description", -2, HorizontalAlignment.Left);

        //Add listview as a control
        this.Controls.Add(lstView);
    }

And here is the button that should add all the user inputs to the listview. The only line that does not work is the last line.

It gives me the following error: Cannot assign 'Add' because it is a 'method group' .

private void btnDeposit_Click(object sender, EventArgs e)
    {
        lstView.View = View.Details;

        ListViewItem lvwItem = lstView.Items.Add(txtDeposit.Text);
        lvwItem.SubItems.Add(txtWithdraw.Text);
        lvwItem.SubItems.Add(txtDescription.Text);

        txtDeposit.Clear();
        txtWithdraw.Clear();
        txtDescription.Clear();

        btnDeposit.Enabled = false;
        btnDeposit.BackColor = Color.LightGray;

        lstView.Items.Add = cboCategory.SelectedIndex;

    }

EDIT: Here is the working code.. (cboCategory is the combobox)

private void btnDeposit_Click(object sender, EventArgs e)
    {
        lstView.View = View.Details;
        ListViewItem lvwItem = lstView.Items.Add(txtDeposit.Text);
        if (cboCategory.SelectedItem != null)
        {
            lvwItem.SubItems.Add(cboCategory.SelectedItem.ToString());
        }
        lvwItem.SubItems.Add(txtDescription.Text);

Answer 1

The .Add is a method so it needs to be called like a method.

lstView.Items.Add("Adding this string to the list view");

However I don't know what cboCategory is so I cant advise on what youre trying to add.

Answer 2

As stated by Sriram above this line is completely wrong, well actually we don't know what your cboCategory holds either.

lstView.Items.Add = cboCategory.SelectedIndex;

Sure you are not supposed to do a:

lstView.Items.Add(lvwItem);

And/Or...

var selectedValue = lstView.Items.FirstOrDefault( c=>whateversearchparameters here);
if( selectedValue!=null )
      SelectAndStuffHere();

Bit hard to tell without knowing more :)

But hope it helps,

Cheers

Stian