remove checkbox unchecked items from collection c#

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C#

private void grvView_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            ////grvView.Rows[e.ColumnIndex].ReadOnly = true;   //Cells readonly
            //if (ChkdGetList.Columns["Sl No"])

            if (e.ColumnIndex == grvView.Columns["Select"].Index)
            {
                grvView.EndEdit();
                if ((bool)grvView.Rows[e.RowIndex].Cells["Select"].Value)
                {
                    i = e.RowIndex;
                    DataGridViewRow row = grvView.Rows[i];
                    VNumber = row.Cells["V Number"].Value.ToString();
                    VDate = Convert.ToDateTime(row.Cells["V Date"].Value.ToString());
                    CAmount = row.Cells["C Amount"].Value.ToString();
                    CqNo = row.Cells["C Number"].Value.ToString();

                    if (objDocumentList == null)
                        objDocumentList = new List<string>();
                    string str = VNumber + "~" + VDate;
                    objDocumentList.Add(VNumber + "~" + VDate);
                    MessageBox.Show("The Value is Checked", "Status", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
                else
                {

                    MessageBox.Show("The Value is UnChecked", "Status", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
            }
        }

  public List<string> objDocumentList;

i want to remove un-checked items from collection(List),allow only checked items to add. My issue is
1.When i checked checkbox from datagridView, it will be added to collection(objDocumentList),After i un-check checkbox from grid, it still remains exists in that (objDocumentList) coll.
2. remove un-checked items from coll.

Posted 1-Sep-15 3:39am

Sathish km

Updated 6-Oct-17 21:39pm

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Herman<T>.Instance 1-Sep-15 9:48am

What have you tried?

Sathish km 1-Sep-15 23:55pm

hey i have posted above, didn't see?

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CHill60 · Answer 1 · 2015-09-01T04:02:00

1. Check the list contains[^] the string

2. If it does, then Remove[^] it.

You will need to move your code around a bit so that Vnumber, VDate etc are in scope [^]for the else block

As an aside, as you have gone to all the effort of using

string str = VNumber + "~" + VDate;

why not use it?

C#

objDocumentList.Add(str);