Question

如何在button_Click事件中设置gridView中按钮的可见性为false？它一直给我一个错误：编译错误

编译器错误消息：CS0103：名称＆＃39; btnTest＆＃39;在当前上下文中不存在

 <asp:GridView ID="GridView1" runat="server" OnRowDataBound="GridView2_RowDataBound">
            <Columns>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:Button ID="Button189" OnClick="Button189_Click" runat="server" Text="odzemi svez vrganj" />

                        <asp:Button ID="btnTest" runat="server" CommandName="odzemi" CssClass="button2" OnClick="btnTest_Click" Text="-" Width="100px" Font-Bold="True" />
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

以下是我想要在gridview中隐藏按钮的按钮事件。

 protected void Button10_Click(object sender, EventArgs e)
 {
     btnTest.Visible = true;
     Button189.Visible = false;
 }

Answer 1

使用以下代码将按钮可见属性设置为 True 或 False 。将点击的gridview中的按钮将充当发件人。这样做会为您提供触发按钮的行ID，然后您可以找到其他控件并在该特定行上设置所需的属性。

protected void Button189_Click(object sender, EventArgs e)
 {
        Button Btn = sender as Button;
        GridViewRow gvRow = Btn.NamingContainer as GridViewRow;
        int rowId = gvRow.RowIndex;
        Button Button189 = GridView2.Rows[rowId].FindControl("Button189") as Button;
        Button btnTest = GridView2.Rows[rowId].FindControl("btnTest") as Button;
        Button189.Visible = false;
        btnTest.Visible = true;
 }

Answer 2

您需要遍历gridview行并找到控件

  foreach (GridViewRow row in grid.Rows)
   {
     if(row.RowType == DataControlRowType.DataRow)
      {
         var control =  ((Button)row.FindControl("btnTest"));
         if (control != NULL)
         {
             ((Button)control).Visible = false;
         }  
      }          
  }

在aspx.net后面的代码中设置按钮可见性

2 个答案: