Question

嗨，在我的gridview中的这个字段中，我想在单击select命令字段时传递id值，但我不希望id字段可见，所以我将visible属性设置为false;但是，当我在SelectedIndexChanged事件上传递它时，值为“”，但当visible属性设置为“true”时，文本值正常传递。这样做的正确方法是什么？

<asp:BoundField DataField="Project_ID" Visible="false"/>

 protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
    {
        String ProjID = GridView1.SelectedRow.Cells[10].Text;

    }

Answer 1

试试这个：

<强>的.aspx

<asp:Gridview id="GridView1" runat="server" DataKeyNames="Project_ID" />

<强>的.cs

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
    if(gridView.SelectedDataKey != null)
    {
        var selectedId = GridView1.SelectedDataKey.Value;
    }
}

在这里，您可以在Gridviews中找到有关DataKeys的更多信息：http://msdn.microsoft.com/de-de/library/system.web.ui.webcontrols.gridview.selecteddatakey(v=vs.110).aspx

Answer 2

我在winform中做过类似的事情也许可以帮到你。这就是我用过的东西

int rowindex = dataGridView1.CurrentRow.Index;
  string ProjID= dataGridView1.Rows[rowindex].Cells[10].Value.ToString();

Answer 3

您可以在gridView ItemTemplate中使用HiddenField来保存ID并在onrowcommand事件中使用它，如下所示：

的.aspx

<asp:GridView ID="gridProject" runat="server" 
           onrowcommand="gridProject_RowCommand">
 <Columns>
 <ItemTemplate>
   <asp:HiddenField ID="hidProjectID" runat="server" 
        Value='<%# ((DataRowView)Container.DataItem)["Project_ID"] %>' />
   <asp:Button ID="btnProject" runat="server" Text="use pro id" 
        CommandArgument="<%# ((GridViewRow) Container).RowIndex %>" 
        CommandName="DoSomething"></asp:Button>
 </ItemTemplate>    
 </Columns>
 </asp:GridView>

aspx.cs

    protected void gridProject_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        int index = 0;
        GridViewRow gridRow;
        GridView grid = sender as GridView;

        try
        {
            switch (e.CommandName)
            {
                case "DoSomething":
                    index = Convert.ToInt32(e.CommandArgument);
                    row= gridProject.Rows[index];
                    string Id = ((HiddenField)row.FindControl("hidProjectID")).Value;

                    //do whatever you want here

                    break;

                // and you can have as many commands as you want here
            }

        }
        catch { //display error }
    }

使用visible属性=＆＃39; false＆＃39;获取gridview.selected.row []的值。

3 个答案: