如何在选中复选框的gridview中获取值？

Question

您好，我有一个带有复选框列的网格视图...

当用户检查并点击按钮时 这就是我的网格的样子

         checkboxColumn|ID|CustomerNAme
      --------------------------------------
                        1|asjd
                        2|asdfas
                        3|asdjka

                assign(Button)

当用户检查所需的行时，我只想获取网格的 ID 值并将其存储到数据库中

       protected void BtnAssignWork_Click(object sender, EventArgs e)
{

    for (int i = 0; i < GrdCustomerData.RowsInViewState.Count; i++)
    {
        GridDataControlFieldCell cell = GrdCustomerData.RowsInViewState[i].Cells[0] as GridDataControlFieldCell;
        CheckBox chk = cell.FindControl("Chkselect") as CheckBox;

        if (chk.Checked == true)
        {
            var allIDs = (from item in GrdCustomerData.Rows.Cast<GridRow>()                              
                          let id = int.Parse(item.Cells[1].Text)
                          where chk.Checked
                          select id).ToList();
            using (var myconn = new SqlConnection(connstring))
            {
                foreach (var id in allIDs)
                {
                    using (var mycomm = new SqlCommand("SP_AssignedWork", myconn))
                    {
                        myconn.Open();
                        mycomm.CommandType = CommandType.StoredProcedure;
                        mycomm.Parameters.Add("@LoanID", SqlDbType.VarChar).Value = id;
                        mycomm.Parameters.Add("@EmpID", SqlDbType.VarChar).Value = DDLSelectEmployee.SelectedValue;
                        mycomm.ExecuteNonQuery();
                        myconn.Close();
                    }
                }
            }

        }

谁能帮帮我....

Answer 1

使用 Gridviewrows 类从该使用单元格 [1] 中查找当前行，该单元格表示该单元格中的控件，您可以从中获取 id

Answer 2

您可以使用SelectedIndex 属性来获取当前选定的行，然后从该行中获取您想要的单元格。比如：

 GridViewRow row = CustomersGridView.SelectedRow;
 int CustomerId = int.parse(row.Cells[2].Tex);

Answer 3

假设您使用TemplateField 和CheckBox 和ID="Chkselect"：

protected void BtnAssignWork_Click(object sender, EventArgs e){
    var allIDs = (from item in GrdCustomerData.Rows.Cast<GridViewRow>()
                 let chk = (CheckBox)item.Cells[0].FindControl("Chkselect")
                 let id = int.Parse(item.Cells[1].Text)
                 where chk.Checked
                 select id).ToList();

    using(var myconn = new SqlConnection(connstring)){
         myconn.Open();
         foreach (var id in allIDs) { 
            using(var mycomm = new SqlCommand("SP_AssignedWork", myconn)){
                mycomm.CommandType = CommandType.StoredProcedure;
                mycomm.Parameters.Add("@LoanID", SqlDbType.Int).Value = id;
                mycomm.Parameters.Add("@EmpID", SqlDbType.Int).Value = int.Parse(DDLSelectEmployee.SelectedValue);
                mycomm.ExecuteNonQuery();
            }
         }
     }
 }

编辑：为了澄清起见，我将这两个部分结合在一起。您不需要额外的行循环，因为 LINQ 查询已经这样做了。

Answer 4

我解决了我的答案的任何方法....

这是我希望对某些人有所帮助的代码......

    void grid1_RowDataBound(object sender, GridRowEventArgs e)
{
    if (e.Row.RowType == GridRowType.DataRow && GrdCustomerData.RowsInViewState.Count > 0)
    {
        GridDataControlFieldCell cell = e.Row.Cells[0] as GridDataControlFieldCell;
        CheckBox chk = cell.FindControl("Chkselect") as CheckBox;

        GridDataControlFieldCell cellInViewState = GrdCustomerData.RowsInViewState[e.Row.RowIndex].Cells[0] as GridDataControlFieldCell;
        CheckBox chkInViewState = cellInViewState.FindControl("Chkselect") as CheckBox;

        if (cell.Value == chkInViewState.ToolTip)
        {
            chk.Checked = chkInViewState.Checked;
        }
    }
}

protected void BtnAssignWork_Click(object sender, EventArgs e)
{
    string LoanIds = "";

    for (int i = 0; i < GrdCustomerData.RowsInViewState.Count; i++)
    {
        GridDataControlFieldCell cell = GrdCustomerData.RowsInViewState[i].Cells[0] as GridDataControlFieldCell;
        CheckBox chk = cell.FindControl("Chkselect") as CheckBox;

        if (chk.Checked == true)
        {
            if (!string.IsNullOrEmpty(LoanIds))
               LoanIds += "";

           LoanIds = chk.ToolTip;
                    SqlConnection myconn = new SqlConnection(connstring);
                    SqlCommand mycomm = new SqlCommand("SP_AssignedWork", myconn);
                    myconn.Open();
                    mycomm.CommandType = CommandType.StoredProcedure;
                    mycomm.Parameters.Add("@LoanID", SqlDbType.VarChar).Value = LoanIds;
                    mycomm.Parameters.Add("@EmpID", SqlDbType.VarChar).Value = DDLSelectEmployee.SelectedValue;
                    mycomm.ExecuteNonQuery();
                    myconn.Close();
                }
            }


        }
    }