.net - 启用分页时，在单击按钮时循环所有 gridview 行

Question

我在我的 GridView 中启用了分页...

我在按钮点击事件中需要这个

gridview 总行数

循环遍历 foreach

中的所有行

但它只适用于当前的gridview页面...帮助

protected void Button5_Click(object sender, EventArgs e)
{
    int[] no = new int[GridView2.Rows.Count];
    int i = 0;

    foreach (GridViewRow row in GridView2.Rows)
    {            
        Label l = (Label)row.FindControl("Label2");
        if (l.Text == "Unpaid")
        {
            int productID = Convert.ToInt32(GridView2.DataKeys[row.RowIndex].Value);
            no[i] = productID;
            i++;
         }
     }
}

Answer 1

要实现你必须在循环之前禁用分页。重新绑定(bind)网格并执行循环。
然后启用分页并再次绑定(bind)网格。

       protected void Button5_Click(object sender, EventArgs e)       
 { 
GridView2.AllowPaging = false;
 // do your databind here 
GridView2.databind(); 
int[] no = new int[GridView2.Rows.Count];      
          int i = 0;        
    foreach (GridViewRow row in GridView2.Rows)      
      {                             
   Label l = (Label)row.FindControl("Label2");
                    if (l.Text == "Unpaid")        
            {                    
    int productID = Convert.ToInt32(GridView2.DataKeys[row.RowIndex].Value);                        no[i] = productID;                        i++;                    }                }  


              )



GridView2.AllowPaging = true;
        // do your databind here again
        GridView2.databind();