位置1没有行. [英] There is no row at position 1.

问题描述

我发现了错误
在位置1处没有行.索引
我的代码是:

 GridViewRow row = GridView1.Rows [e.RowIndex];
如果(会话[" ] ！= 为空)
        {
            DataSet dt1 =(DataSet)Session [" ];
          dt1.Tables [ 0 ].Rows [row.DataItemIndex] [ 0 ] =(((TextBox)( row.Cells [ 1 ].Controls [ 0 ])).Text;
            dt1.Tables [ 0 ].Rows [row.DataItemIndex] [ 1 ] =(((TextBox)( row.Cells [ 2 ].Controls [ 0 ])).Text;
            dt1.Tables [ 0 ].Rows [row.DataItemIndex] [ 2 ] =(((TextBox)( row.Cells [ 3 ].Controls [ 0 ])).Text;
            dt1.Tables [ 0 ].Rows [row.DataItemIndex] [ 3 ] =(((TextBox)( row.Cells [ 4 ].Controls [ 0 ])).Text;
            GridView1.EditIndex = -1;
            binddata();
        }
        如果(会话[" ] ！= 为空)
        {
            Response.Write(" );
            DataSet dt2 =(DataSet)Session [" ];
           //  GridViewRow row1 = GridView1.Rows [e.RowIndex]; 
            dt2.Tables [ 0 ].Rows [row.DataItemIndex] [ 0 ] =(((TextBox)( row.Cells [ 1 ].Controls [ 0 ])).Text;
            dt2.Tables [ 0 ].Rows [row.DataItemIndex] [ 1 ] =(((TextBox)( row.Cells [ 2 ].Controls [ 0 ])).Text;
            dt2.Tables [ 0 ].Rows [row.DataItemIndex] [ 2 ] =(((TextBox)( row.Cells [ 3 ].Controls [ 0 ])).Text;
            dt2.Tables [ 0 ].Rows [row.DataItemIndex] [ 3 ] =(((TextBox)( row.Cells [ 4 ].Controls [ 0 ])).Text;
            GridView1.EditIndex = -1;
            binddata();
        } 

第二会话部分不起作用.错误发生在第二个会话部分.第一部分运作良好. dt1.Tables [0] .Rows [row1.DataItemIndex] [0] =((TextBox)(row1.Cells [1] .Controls [0])).Text;请提出任何建议.

解决方案

由于您没有给我们提供任何有用的信息，我们不得不猜测.

我的第一个猜测是row1 e.RowIndex在GridView.Rows的范围之外.
您是否考虑过在代码周围放置try/catch块，看看它是否告诉您什么地方不对?

这可能是您的dt2 DataSet中的内容

dt2.Tables [0]有效吗?在这个索引上肯定有一个DataTable吗?
如果有表，则dt2中指定索引处是否存在一行? row1.DataItemIndex?
如果有一行，它是否具有您指定的所有字段?！

使用调试器，您应该能够确定其中哪些无效.错误.

可能您是根据第一个数据集而不是第二个数据集触发了e.

I found the error
There is no row at position 1. index
My code is:

GridViewRow row = GridView1.Rows[e.RowIndex];
if (Session["dt"] != null)
        {
            DataSet dt1 = (DataSet)Session["dt"];
          dt1.Tables[0].Rows[row.DataItemIndex][0] = ((TextBox)(row.Cells[1].Controls[0])).Text;
            dt1.Tables[0].Rows[row.DataItemIndex][1] = ((TextBox)(row.Cells[2].Controls[0])).Text;
            dt1.Tables[0].Rows[row.DataItemIndex][2] = ((TextBox)(row.Cells[3].Controls[0])).Text;
            dt1.Tables[0].Rows[row.DataItemIndex][3] = ((TextBox)(row.Cells[4].Controls[0])).Text;
            GridView1.EditIndex = -1;
            binddata();
        }
        if (Session["key"] != null)
        {
            Response.Write("hello");
            DataSet dt2 = (DataSet)Session["key"];
           // GridViewRow row1 = GridView1.Rows[e.RowIndex];
            dt2.Tables[0].Rows[row.DataItemIndex][0] = ((TextBox)(row.Cells[1].Controls[0])).Text;
            dt2.Tables[0].Rows[row.DataItemIndex][1] = ((TextBox)(row.Cells[2].Controls[0])).Text;
            dt2.Tables[0].Rows[row.DataItemIndex][2] = ((TextBox)(row.Cells[3].Controls[0])).Text;
            dt2.Tables[0].Rows[row.DataItemIndex][3] = ((TextBox)(row.Cells[4].Controls[0])).Text;
            GridView1.EditIndex = -1;
            binddata();
        }

The second sesssion part is not working. The error occured in the second session part. the first part is working well. dt1.Tables[0].Rows[row1.DataItemIndex][0] = ((TextBox)(row1.Cells[1].Controls[0])).Text;Any suggestion please.

解决方案

Since you haven''t given us any usable info to work with, we have to guess.

My first guess is that row1 e.RowIndex is outside the range of GridView.Rows.

Have you considered putting a try/catch block around the code to see if it tells you what''s wrong?

It''s likely to be something in your dt2 DataSet

Is dt2.Tables[0] valid? Is there definitely a DataTable at this index?
If there is a table, is there a row in dt2 at the specified index? row1.DataItemIndex?
If there is a row, does it have all the fields you''ve specified?!

Using your debugger, you should be able to determine which of these are invalid.

The event e is apparantely be set for the first dataset but not the second - this could be what is throwing the error.

It is probably that you have fired e based on the first dataset and not the second.

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