如何在 ASP.NET 4.0 C#.net 中的网格视图中调用多个值

发布于 2024-11-08 15:15:43 字数 508 浏览 0 评论 0原文

我是 ASP.NET 4.0 的新手。在我的项目中，数据显示在网格视图中。用户根据数据库中存储的两个值选择要编辑的行。这里给出了我调用单个值的代码。如何根据数据库中的两个值获取数据。请帮我解决这个问题。

grdViewVacationInfo_RowCommand()
{
            if (e.CommandName == "ViewInfoBtn")
            {
                int index = int.Parse(e.CommandArgument.ToString());
                string key = grdViewVacationInfo.DataKeys[index].Value.ToString();
                Session["ke"] = key.ToString();
            }
}

这就是所谓的单一值。但我怎样才能获得两个以上的值并将其存储在会话或任何变量中。

提前致谢

原文

I'm new to ASP.NET 4.0. In my project, the data'a are displayed in the Grid View. The user selects a row to edit based on two values which are stored in the Database. My code for calling single value is given here. How can I get datas based on two values from the database. PLease help me with this.

grdViewVacationInfo_RowCommand()
{
            if (e.CommandName == "ViewInfoBtn")
            {
                int index = int.Parse(e.CommandArgument.ToString());
                string key = grdViewVacationInfo.DataKeys[index].Value.ToString();
                Session["ke"] = key.ToString();
            }
}

This is how ill call a single value. but how can i get the more than two values and store it in a Session or any variable.

Thanks In Advance

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泪冰清 2024-11-15 15:15:43

你可以尝试这个来获取网格的列值。

grdViewVacationInfo.Rows[grdViewVacationInfo.SelectedIndex]..Cells[yourcellindex].Text;

you can try this to fatch grid's column value .

grdViewVacationInfo.Rows[grdViewVacationInfo.SelectedIndex]..Cells[yourcellindex].Text;

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桃气十足 2024-11-15 15:15:43

由于您已经在使用 DataKeys，您已经基本完成了。 DataKeys 可以保存多个值 - 只需用逗号分隔所需的列名称即可：

<asp:gridview runat="server" id="grdViewVacationInfo" 
    DataKeyNames="Column1, Column2" 
... 
</asp:gridview>

然后在 RowCommand 事件中，您可以通过索引访问 DataKey 值：

grdViewVacationInfo_RowCommand() 
{             
    if (e.CommandName == "ViewInfoBtn")
    {                 
        int index = int.Parse(e.CommandArgument.ToString());
        string key1 = grdViewVacationInfo.DataKeys[index].Value[0].ToString();
        string key2 = grdViewVacationInfo.DataKeys[index].Value[1].ToString();
        Session["ke"] = key1;
        Session["ke2"] = key2;
    } 
}

As you're already using DataKeys you're most of the way there already. DataKeys can hold more than one value - just separate the column names you want with commas:

<asp:gridview runat="server" id="grdViewVacationInfo" 
    DataKeyNames="Column1, Column2" 
... 
</asp:gridview>

Then in your RowCommand event, you access the DataKey values by index:

grdViewVacationInfo_RowCommand() 
{             
    if (e.CommandName == "ViewInfoBtn")
    {                 
        int index = int.Parse(e.CommandArgument.ToString());
        string key1 = grdViewVacationInfo.DataKeys[index].Value[0].ToString();
        string key2 = grdViewVacationInfo.DataKeys[index].Value[1].ToString();
        Session["ke"] = key1;
        Session["ke2"] = key2;
    } 
}

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