c#之无法将类型 'string' 隐式转换为 'System.Web.UI.WebControls.Label'

我将我的值从 gridview 逐行传递到不同的页面。数据库中 gridview 的表如下:

 Create table Task 
  ( 
    TaskId int Identity(1,1), 
     Title varchar(100), 
     Body varchar(500), 
     Reward decimal(4,2), 
    TimeAllotted int, 
    PosterName varchar(100) 
  ) 

详情页的后台代码如下:

 protected void Page_Load(object sender, EventArgs e) 
{ 
    if (this.Page.PreviousPage != null) 
    { 
        int rowIndex = int.Parse(Request.QueryString["RowIndex"]); 
        GridView GridView1 = (GridView)this.Page.PreviousPage.FindControl("GridView1"); 
        GridViewRow row = GridView1.Rows[rowIndex]; 
        lblTaskId.Text = row.Cells[0].Text; 
        lblTitle.Text = row.Cells[1].Text; 
        lblBody.Text = row.Cells[2].Text; 
        lblReward.Text = row.Cells[3].Text; 
        lblTimeAllotted = row.Cells[4].Text; 
        lblPosterName = row.Cells[5].Text; 
 
 
    } 
} 

它按需要显示所有内容，但是当我在 gridview 的特定行中单击“查看任务”时，出现异常无法将类型“字符串”隐式转换为“System.Web.UI.WebControls.Label”。异常发生在最后两行，即

    lblTimeAllotted = row.Cells[4].Text; 
    lblPosterName = row.Cells[5].Text; 

我该如何纠正这个问题？

请您参考如下方法:

试试这个:

lblTimeAllotted.text = row.Cells[4].Text; 
lblPosterName.text = row.Cells[5].Text; 

您不能为文本设置标签。需要设置label的text属性