Question

我正在努力使它如果特定列中的单元格不包含值，我希望该单元格改变颜色。

我目前没有任何可以显示的示例代码，但如果有人可以提供帮助，我将不胜感激。

Answer 1

您的RowDataBound事件应该是这样的

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，您需要在标记中定义GridView，如下所示：

<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：您的GridView DataSource需要具有与datafield中定义的GridView值相匹配的公共属性名称。

其次，您需要实施onrowdatabound中定义的GridView事件，该事件指向名为GridView1_RowDataBound的方法，如下所示：

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>";
    }
}

在RowDataBound中选择特定列

2 个答案: