我可以在 GridView 中合并页脚吗？

Question

我有一个与数据集绑定的 GridView。我有我的页脚，它由列线分隔。我想合并 2 列；我该怎么做？

<asp:TemplateField HeaderText="Name" SortExpression="Name">
<ItemTemplate>
...  
</ItemTemplate>
<FooterTemplate >                    
Grand Total:
</div>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Age" SortExpression="Age">
<ItemTemplate>
...  
</ItemTemplate>
<FooterTemplate >                    
<%# GetTotal() %> 
</div>
</FooterTemplate>
</asp:TemplateField>

Answer 1

protected void GridView1_OnRowDataBound(object sender, System.Web.UI.WebControls.GridViewRowEventArgs e)
    {

        if (e.Row.RowType == DataControlRowType.Footer)
        {
           e.Row.Cells.RemoveAt(1);
           e.Row.Cells[0].ColumnSpan = 2;

        }

    }

Answer 2

未经测试的代码

第一个页脚模板应包含

第二个页脚模板应该是空的

    Protected Sub Page_SaveStateComplete(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.SaveStateComplete
        Dim DG As GridView = GridView1
            Dim Tbl As Table = DG.Controls(0)
            Dim tr As GridViewRow
            Dim i As Integer
            Dim j As Integer

tr = Tbl.Rows(Tbl.Rows.Count - 1) 'this line assume last row is footer row

                    tr.Cells(0).ColumnSpan = 2 'if you have 3 columns then colspan = 3 instead

                    For j = 1 To 1 'if you have 3 columns then j = 1 To 2 instead
                        tr.Cells(j).Visible = False
                    Next

    End Sub

Answer 3

我正在做这样的事情 - 试图在页脚中有一个按钮跨越多个列。

我在通过代码设置 columnspan 时遇到了一个问题，因为 a) 我是菜鸟，b) 它没有 符合我的预期。我不记得所有的细节，但其中有一些陷阱——比如添加额外的列之类的。

这是我的解决方案。也许其中一些会很有用。我在 gridview (gvDocs) 的预渲染中做了。

让我正常工作的原因是以编程方式删除页脚的单元格以及设置列跨度。

即使代码没有帮助，也许人们会因为我的健忘问题而发笑。它有时让我发笑。

   Protected Sub gvDocs_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles gvDocs.PreRender

        If gvDocs.Rows.Count > 0 Then


            Dim m As Integer = gvDocs.FooterRow.Cells.Count
            For i As Integer = m - 1 To 1 Step -1
                If i <> 8 Then '7 is the number of the column with the applychanges button in it.
                    gvDocs.FooterRow.Cells.RemoveAt(i)
                End If
            Next i
            gvDocs.FooterRow.Cells(1).ColumnSpan = 6 '6 is the number of visible columns to span.
        End If
    End Sub

Fernando68 - 这是在 C# 中

protected void gvDocs_PreRender(object sender, System.EventArgs e)
{

    if (gvDocs.Rows.Count > 0) {

        int m = gvDocs.FooterRow.Cells.Count;
        for (int i = m - 1; i >= 1; i += -1) {
            //7 is the number of the column with the applychanges button in it.
            if (i != 8) {
                gvDocs.FooterRow.Cells.RemoveAt(i);
            }
        }
        gvDocs.FooterRow.Cells[1].ColumnSpan = 6;
        //6 is the number of visible columns to span.
    }
}

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已编辑 - 需要使用方括号按页脚行中的索引访问单元格