在RowDataBound中选择特定列

Question

我想让它如此，如果在不包含值的特定列中有一个单元格，我希望该单元格改变颜色。

我目前没有任何示例代码可以显示，但如果有人可以帮忙，我将不胜感激。

Answer 1

你RowDataBound事件应该喜欢这个

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) 
    { 
     if (e.Row.RowType == DataControlRowType.DataRow) 
     { 
      if (e.Row.Cells[0].Text == "open") 
      { 
       e.Row.Cells[0].ForeColor = System.Drawing.Color.Red; 
      } 
      else if (e.Row.Cells[0].Text == "close") 
      { 
       e.Row.Cells[0].ForeColor = System.Drawing.Color.Black; 
      } 
      else 
      { 
       e.Row.Cells[0].ForeColor = System.Drawing.Color.Green; 
      } 
     } 
    } 

Answer 2

首先，您需要定义标记一个GridView，像这样：

<asp:GridView id="GridView1" emptydatatext="No data available." runat="server" onrowdatabound="GridView1_RowDataBound" > 
    <Columns> 
     <asp:boundfield datafield="CustomerID" headertext="Customer ID"/> 
     <asp:boundfield datafield="CompanyName" headertext="Company Name"/> 
     <asp:boundfield datafield="Address" headertext="Address"/> 
     <asp:boundfield datafield="City" headertext="City"/> 
     <asp:boundfield datafield="PostalCode" headertext="Postal Code"/> 
     <asp:boundfield datafield="Country" headertext="Country"/> 
    </Columns> 
</asp:GridView> 

注意：您GridView的DataSource需要有匹配您GridView定义的datafield值公共属性名称。

其次，你需要实现你的GridView定义的onrowdatabound事件，它指向一个名为GridView1_RowDataBound方法，就像这样：

protected void GridView1_RowDataBound(Object sender, GridViewRowEventArgs e) 
{ 
    if(e.Row.RowType == DataControlRowType.DataRow) 
    { 
     // Put logic here to check particular cell value 
     // Here is an example of changing the second cell (`Cells` collection is zero-based) to italic 
     e.Row.Cells[1].Text = "<i>" + e.Row.Cells[1].Text + "</i>"; 
    } 
}