检索数据集列名称时出现问题 [英] problem in retrieving dataset column name

问题描述

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
DataSet dssa = (DataSet)Session["dt"];
        string sr = dssa.Tables[0].Columns[2].ColumnName;
        Response.Write(sr);
}

在此列中的名称显示3次.在这种情况下，我应该编写编码?

in this column name is displaying 3 times.in which event i should write the coding?

推荐答案

GridView1_RowDataBound方法将对gridview中的每一行执行.因此，如果您有3行，则此方法将执行3次，因此Response.Write将发生3次.

一个简单的调试可能会导致这种情况. :)

GridView1_RowDataBound method would get executed for every row in your gridview. Thus, if you have 3 rows then this method would be executed 3 times and thus Response.Write would happen 3 times.

A simple DEBUG could have led to this. :)

正如Sandeep所说，Response.Write在Rowdatabound事件中将发生3次.
如果不想三遍，只需放置一个标签控件即可获取列名.
或
在pageload事件中编写代码以获取列名.

As Sandeep said Response.Write will happen three times in Rowdatabound event.
If you don''t want it three times just place a label control to get the column name.
or
Write the code in pageload event to get the column name.

protected void Page_Load(object sender, EventArgs e)
       {
           DataSet dssa = (DataSet)Session["dt"];
        string sr = dssa.Tables[0].Columns[2].ColumnName;
        Response.Write(sr);
        }

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