C# 从checkedlistbox 中插入自定义值选定项到dataviewgrid

Question

Im working in a lab for covid. We are sending result via excel. I made a template for easy edit excel file. I searched too much but i cant find solution for this request.

in this picture after selected items and push "tamamlandı" button, i want to change dataviewgrid second column change custom data

for example: if selected 1,5,13,48 in checkedlistbox, change 1,5,13,48 rows second column data to "POZ"

Answer 1

You can get all checked items via CheckedItems property. Then you can use the foreach statement to traverse it.

private void btntamamlandı_Click(object sender, EventArgs e)
{
    foreach(var i in checkedListBox1.CheckedItems)
    {
        // get the checked item value
        // rowindex starts from 0, so need to subtract 1
        int rowindex = Convert.ToInt32(i.ToString()) - 1;
        dataGridView1.Rows[rowindex].Cells[1].Value = "POZ";
    }
}

---

Update: delete selected rows

private void btnDelete_Click(object sender, EventArgs e)
{
    // store checkedListBox1 selected index
    List<int> indexs = new List<int>();

    foreach (var i in checkedListBox1.CheckedItems)
    {
        indexs.Add(Convert.ToInt32(i.ToString()) - 1);
    }

    // selected row count
    int count = indexs.Count;

    for (int index = 0; index < count; index++)
    {
        dataGridView1.Rows.RemoveAt(indexs[0] - index);
        indexs.RemoveAt(0); // remove the first item
    }
}