c# - 在 GridView 上添加行得到 "Specified argument was out of the range of valid values"

Question

我试图根据某些条件在 GridVIew 上添加一些行，但出现“指定参数超出有效值范围”错误。这是我的 GridView :

<asp:GridView ID="gvConcept" runat="server" CellPadding="0" CssClass="table" CellSpacing="0" AutoGenerateColumns="false" GridLines="Vertical" BorderStyle="Solid" ShowFooter="false" OnRowDataBound="gvConcept_RowDataBound" OnRowCreated="gvConcept_RowCreated" >
        <Columns>
            <asp:BoundField DataField="Concept" HeaderText="  Concept" />
            <asp:BoundField DataField="Client" HeaderText="  Client" />
            <asp:BoundField DataField="YTD" HeaderText="  YTD" ItemStyle-HorizontalAlign="Right" />
        </Columns>
    </asp:GridView>

这是我的代码隐藏:

string ParAnt = string.Empty;
string partner = string.Empty;
protected void gvConcept_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        ParAnt = DataBinder.Eval(e.Row.DataItem, "Partner").ToString();
    }
}

public void AddNewRow(object sender, GridViewRowEventArgs e, int rowIndex)
{
    GridView GridView1 = (GridView)sender;
    GridViewRow NewTotalRow = new GridViewRow(0, 0, DataControlRowType.DataRow, DataControlRowState.Insert);
    NewTotalRow.Font.Bold = true;
    NewTotalRow.ForeColor = System.Drawing.Color.Black;
    NewTotalRow.BackColor = System.Drawing.Color.LightGray;
    TableCell HeaderCell = new TableCell();
    HeaderCell.Height = 10;
    HeaderCell.HorizontalAlign = HorizontalAlign.Left;
    HeaderCell.ColumnSpan = 4;
    HeaderCell.Text = partner;
    NewTotalRow.Cells.Add(HeaderCell);
    GridView1.Controls[0].Controls.AddAt(e.Row.RowIndex + rowIndex, NewTotalRow);
}

protected void gvConcept_RowCreated(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        partner = DataBinder.Eval(e.Row.DataItem, "Partner").ToString();
        if (ParAnt != partner)
        {
            AddNewRow(sender, e, e.Row.RowIndex+1);
            ParAnt = DataBinder.Eval(e.Row.DataItem, "Partner").ToString();
        }
    }
}

第一行已正确添加，但无法添加下一行(在我的案例 2 中)。任何输入任何人？谢谢。

Answer 1

我相信您应该使用 1 作为最后一个参数调用 AddNewRow 函数，而不是 e.RowRowIndex + 1。在第一次调用时，这会将 1 作为值 (0 + 1) 传递，但在第二次调用时，它将传递 2 (1 + 1) 和 InsertAt AddAt 将为索引 3 调用:e.Row.RowIndex + 2 = 3。