添加标题VB.net/asp.net gridview？

Question

我知道这个问题已经回答了，在C＃中我一直试图转换并让它工作，但是没有成功吗？

如果你帮忙，我将不胜感激

这是来自那个问题的图像，我想做类似的事情。

这里是ASP.NET GridView第二个标题行的链接， 以跨越主标题行

Dim d As Date = Date.Today
        d = d.AddDays(-1)
        Label1.Text = d

        'connects to datawarehouse
        saocmd1.Connection = conn1
        conn1.Open()

        Dim ds As New DataSet

        'selects sql query
        'saocmd1.CommandText = MYQUERY"
        saoda1.Fill(saods1, "salesasoftable")

        Dim row As New GridViewRow(0, -1, DataControlRowType.Header, DataControlRowState.Normal)

        Dim left As TableCell = New TableHeaderCell()
        left.ColumnSpan = 3
        row.Cells.Add(left)

        Dim totals As TableCell = New TableHeaderCell()
        totals.ColumnSpan = gridview1.Columns.Count - 3
        totals.Text = "Totals"
        row.Cells.Add(totals)

我的错误

Specified argument was out of the range of valid values.
Parameter name: index 
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: index

Source Error: 


Line 54:        row.Cells.Add(totals)
Line 55: 
Line 56:        Dim t As Table = TryCast(gridview1.Controls(0), Table)
Line 57:        If t IsNot Nothing Then
Line 58:            t.Rows.AddAt(0, row)

答案

Dim row As New GridViewRow(0, -1, DataControlRowType.Header, DataControlRowState.Normal)

'spanned cell that will span the columns I don't want to give the additional header 
Dim left As TableCell = New TableHeaderCell()
left.ColumnSpan = 6
row.Cells.Add(left)

'spanned cell that will span the columns i want to give the additional header
Dim totals As TableCell = New TableHeaderCell()
totals.ColumnSpan = myGridView.Columns.Count - 3
totals.Text = "Additional Header"
row.Cells.Add(totals)

'Add the new row to the gridview as the master header row
'A table is the only Control (index[0]) in a GridView
DirectCast(myGridView.Controls(0), Table).Rows.AddAt(0, row)

Answer 1

从您的问题来看，您似乎无法将c＃转换为vb.net。 这里有2个可以提供帮助的在线转换器。

http://www.developerfusion.com/tools/convert/csharp-to-vb/

http://converter.telerik.com/

或者有形软件有一个可以转换整个项目的转换器，但请注意它不是免费的。

Answer 2

最简单的方法是在RowCreated事件上处理此问题。 您将测试正在处理的RowType，如果它是标题，则您：

1. 清除有问题的行单元格。
2. 将第一个单元格的Rowspan调整为2（对于您的图像：数量已发货）。
3. 紧接着删除行单元格（对于您的图像：总销售额）。
4. 创建一个新表，使其看起来像您想要的那样，如图所示。
5. 将新表插入所需的行单元格。

如果你已经有了你想要使用的解决方案，但它是在C＃而你无法转换它，试试这个工具： http ： //www.developerfusion.com/tools/convert/csharp-to-vb/