如何在gridview中查找控件自定义模板

我在GridView中动态创建按钮，按钮点击后你想要动态删除按钮，但我的问题似乎是我找不到GrideViw中的控件。

下面是一些我的代码：



1.GridView创建按钮的Rowdatabond



public void GridView1_RowDataBound（object sender， GridViewRowEventArgs e）



{



if（e.Row.RowType == DataControlRowType.DataRow）



{



PlaceHolder ph =（PlaceHolder）e.Row.FindControl（ph1）;

按钮bt1 =新按钮（）;



bt1.ID =GameCall;



bt1.Text =游戏电话;



bt1.CommandName =GameCall;



bt1.EnableViewState = true;



ph.Controls.Clear（）;


ph.Controls.Add（bt1）;







}



2.执行click事件的GridView RowCommand

public void GridViewUserLots_RowCommand（object sender，GridViewCommandEventArgs e ）

{

if（e.CommandName ==GameCall）

{







按钮bt1 =（按钮）e.CommandSource;

GridViewRow row =（GridViewRow）bt1.NamingContainer;

PlaceHolder ph =（PlaceHolder）row.FindControl（ph1）;



TextBox PlayerID =（TextBox）row.FindControl（ PlayerId）;

string PlayerId = PlayerID.Text;



if（bt1！= null）

{

事件发生在这里

}



ph1.Controls.Remove（bt1）;



我尝试过：



我试图使用以下代码删除按钮bt1



ph1.Controls.Remove（bt1）;



但按钮仍然存在。

I dynamically created button in GridView, after the button click you want the button to be removed dynamically, but my problem seems that I could not find the control in the GrideViw.
Below is some of my codes:

1.GridView Rowdatabond that created the button

public void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

if (e.Row.RowType == DataControlRowType.DataRow)

{

PlaceHolder ph = (PlaceHolder)e.Row.FindControl("ph1");
Button bt1 = new Button();

bt1.ID = "GameCall" ;

bt1.Text = "Game Call";

bt1.CommandName = "GameCall";

bt1.EnableViewState = true;

ph.Controls.Clear();

ph.Controls.Add(bt1);



}

2.The GridView RowCommand that execute the click event
public void GridViewUserLots_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "GameCall")
{



Button bt1 = (Button)e.CommandSource;
GridViewRow row = (GridViewRow)bt1.NamingContainer;
PlaceHolder ph = (PlaceHolder)row.FindControl("ph1");

TextBox PlayerID = (TextBox)row.FindControl("PlayerId");
string PlayerId = PlayerID.Text;

if (bt1 != null)
{
the event happened here
}

ph1.Controls.Remove(bt1);

What I have tried:

I tried to use the following code to remove the button bt1

ph1.Controls.Remove(bt1);

but the button still remain.