从集合c＃中删除未选中复选框的复选框 [英] remove checkbox unchecked items from collection c#

问题描述

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希望从集合（List）中删除未检查的项目，仅允许检查项目加上。我的问题是

1.当我从datagridView检查复选框时，它将被添加到集合（objDocumentList），在我从网格中取消选中复选框后，它仍然存在于该（objDocumentList）coll中。

2.从coll中删除未经检查的项目。

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.

推荐答案

1。检查列表包含 [ ^ ]字符串



2.如果是，请删除 [ ^ ]它。



您需要稍微移动代码，以便 Vnumber ， VDate 等范围 [ ^ ] else block



顺便说一下，因为你已经全力以赴地使用

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;

为什么不使用它？

objDocumentList.Add(str);

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