Question

我非常确定这个问题之前曾被多次提出并回答过。但我再次要求其他答案。这是我的GridView

<asp:GridView ID="dgvGeneralBillList" runat="server" style="font-size:11px;margin:10px auto auto 30px;width:500px;" AutoGenerateColumns="False" CellPadding="4" ForeColor="#333333" OnSelectedIndexChanged="dgvGeneralBillList_SelectedIndexChanged">
            <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
            <Columns>
                <asp:BoundField DataField="BillID" HeaderText="Bill ID" Visible="False" />
                <asp:BoundField DataField="SerialNo" HeaderText="Bill No" />
                <asp:BoundField DataField="BilledWeekNo" HeaderText="Billed Week" />
                <asp:BoundField DataField="BilledWeekDate" HeaderText="Billed Date" />
                <asp:BoundField DataField="Amount" HeaderText="Amount" />
                <asp:BoundField DataField="BillStatus" HeaderText="Bill Status" />
                <asp:CommandField SelectText="Print" ShowSelectButton="True" />
            </Columns>
            <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
            <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
            <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
            <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
            <EditRowStyle BackColor="#999999" />
            <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
        </asp:GridView>

现在我想在运行时向此gridview添加行。在其他文章中，他们建议为该表定义DataTable，然后ADD my desired COLUMNS，然后ADD rows in that TABLE，最后BIND the table to the GridView。是的，这解决了问题，我也可以做到。但我想要做的是，因为我已经在gridview中添加了列，所以我只想在其中添加行。 并且不定义DataTable，然后将其绑定到GridView的东西。我在下面试过，

oOutputBill = (clsBill[])oOutput;
            if (oOutputBill.Length > 0)
            {
                for (int i = 0; i < oOutputBill.Length; i++)
                {
                    GridViewRow oRow = new GridViewRow();
                    oRow.Cells[0].Text = Convert.ToString(oOutputBill[i].BillID);
                    oRow.Cells[1].Text = Convert.ToString(oOutputBill[i].SerialNo);
                    oRow.Cells[2].Text = Convert.ToString(oOutputBill[i].BilledWeekNo);
                    oRow.Cells[3].Text = Convert.ToString(oOutputBill[i].BilledWeekDate);
                    oRow.Cells[4].Text = Convert.ToString(oOutputBill[i].Amount);
                    oRow.Cells[5].Text = Convert.ToString(oOutputBill[i].BillStatus);
                }
            }

并且如预期的那样，它给出错误“方法GridViewRow没有重载需要0个参数”。我怎样才能做到这一点？提前谢谢。

Answer 1

This链接可能会有所帮助。

但我建议通过DataSource绑定GridView。只需将数据保存到会话中，而不是手动将行添加到GridView中，将新行添加到已保存的数据中并重新绑定网格。

示例：

// If you have List of clsBill.
List<clsBill> oOutputBill = 'Filled from DB...';

// Save Data into session
Session["oOutputBill"] = oOutputBill;

// Bind your GridView
dgvGeneralBillList.DataSource = Session["oOutputBill"];
dgvGeneralBillList.DataBind();

...

// Get saved data and insert new row
List<clsBill> oOutputBill = Session["oOutputBill"] as List<clsBill>;

if(oOutputBill != null)
{
    oOutputBill.Add(new clsBill() { /* Fill class properties */ } );

    // Rebind grid
    dgvGeneralBillList.DataSource = Session["oOutputBill"];
    dgvGeneralBillList.DataBind();
}

Answer 2

这就是我现在使用的解决方案。我的GridView是 -

<asp:GridView ID="dgvGeneralBillList" runat="server" style="font-size:11px;margin:10px auto auto 30px;width:auto;" AutoGenerateColumns="False" CellPadding="4" ForeColor="#333333" OnSelectedIndexChanged="dgvGeneralBillList_SelectedIndexChanged">
            <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
            <Columns>
                <asp:BoundField DataField="BillID" HeaderText="Bill ID" />
                <asp:BoundField DataField="SerialNo" HeaderText="Bill No" />
                <asp:BoundField DataField="BilledWeekNo" HeaderText="Billed Week" />
                <asp:BoundField DataField="BilledWeekDate" HeaderText="Billed Date" />
                <asp:BoundField DataField="Amount" HeaderText="Amount" />
                <asp:BoundField DataField="BillStatus" HeaderText="Bill Status" />
                <asp:CommandField SelectText="Print" ShowSelectButton="True" />
            </Columns>
            <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
            <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
            <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
            <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
            <EditRowStyle BackColor="#999999" />
            <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
        </asp:GridView>

添加行的方式是 -

oOutputBill = (clsBill[])oOutput;
            if (oOutputBill.Length > 0)
            {
                dgvGeneralBillList.DataSource = oOutputBill;
                dgvGeneralBillList.DataBind();
                dgvGeneralBillList.Visible = true;
            }

这个答案类似于定义一个表，向表添加列，向表添加行，最后将表绑定到gridview但代码更少。这样，只有gridview中定义的列才与数据源绑定。请注意，如果您想执行与 OnSelectedIndexChanged 类似的操作并尝试从gridview获取任何数据， DataColumn HAVE TO 在gridview中 DEFINED 和 VISIBLE 。但是，如果有人能够提供示例代码作为我的问题，我们将非常感激。

如何将行添加到具有c＃2.0列的网格视图中？

2 个答案: