我有下面的代码，我试图以编程方式创建一个事件处理程序，它运行时没有错误但是当我点击行中的一个按钮时，事件没有被触发。任何输入都会有所帮助。
protected void Page_Load(object sender, EventArgs e)
{
for (int T = 0; T <= 26; T++)
{
Label x = new Label();
x.ID = T.ToString();
x.Text = "orem ipsum dolor sit amet, consectetur adipiscing elit. Nulla blandit id felis ac volutpat. Aenean tempor faucibus est, ac feugiat libero egestas sit amet. Aliquam";
Label y = new Label();
y.ID = "Title_" + T.ToString();
y.Text = "Title " + T.ToString();
RadioButton Radio1 = new RadioButton();
Radio1.ID = "R_" + T.ToString();
Radio1.Text = "Yes";
Radio1.GroupName = "Radio_" + T.ToString();
Radio1.CheckedChanged += new EventHandler(this.CheckedChanged);
Radio1.AutoPostBack = true;
RadioButton Radio2 = new RadioButton();
Radio2.ID = "RX_" + T.ToString();
Radio2.Text = "No";
Radio2.GroupName = "Radio_" + T.ToString();
Radio2.CheckedChanged += new EventHandler(this.CheckedChanged);
Radio2.AutoPostBack = true;
Panel StatusBar = new Panel();
StatusBar.ID = "status_" + T.ToString();
PlaceHolder pcl = new PlaceHolder();
pcl.ID = "test_" + T.ToString();
pcl.Controls.Add(y);
pcl.Controls.Add(new LiteralControl("<br>"));
pcl.Controls.Add(x);
pcl.Controls.Add(new LiteralControl("<br>"));
pcl.Controls.Add(Radio1);
pcl.Controls.Add(Radio2);
pcl.Controls.Add(new LiteralControl("<br>..."));
form1.Controls.Add(pcl);
form1.Controls.Add(StatusBar);
}
//form1.Controls.Add(new PlaceHolder { ID = "MyStatusBar" });
}
protected void test1()
{
Response.Write("this is a test");
}
protected void CheckedChanged(object sender, EventArgs e)
{
RadioButton tRadio = (RadioButton)sender;
var T = tRadio.ID.Split('_')[1];
var statusBarID = "status_" + T;
var StatusBar = tRadio.Parent.FindControl(statusBarID) as Panel;
if (tRadio.Text == "Yes")
{
Dictionary<string,string> names = new Dictionary<string,string>();
names.Add("1","a");
names.Add("2", "a");
names.Add("3", "a");
names.Add("4", "a");
names.Add("5", "a");
names.Add("6", "a");
names.Add("7", "a");
names.Add("8", "a");
names.Add("9", "a");
GridView gv = new GridView();
gv.DataSource = names;
ButtonField bOne = new ButtonField();
bOne.CommandName = "buttonclicked";
bOne.ButtonType = ButtonType.Button;
bOne.Text = "Edit";
gv.Columns.Add(bOne);
gv.RowCommand += gv_RowCommand;
gv.DataBind();
StatusBar.Controls.Add(gv);
}
}
void gv_RowCommand(object sender, GridViewCommandEventArgs e)
{
}
答案 0 :(得分：0)
要触发事件，您需要在回发事件触发时重新生成gridview，请参阅下面的内容。但是代码仍然存在切换可见的问题。
protected void Page_Load(object sender, EventArgs e)
{
for (int T = 0; T <= 26; T++)
{
Label x = new Label();
x.ID = T.ToString();
x.Text = "orem ipsum dolor sit amet, consectetur adipiscing elit. Nulla blandit id felis ac volutpat. Aenean tempor faucibus est, ac feugiat libero egestas sit amet. Aliquam";
Label y = new Label();
y.ID = "Title_" + T.ToString();
y.Text = "Title " + T.ToString();
RadioButton Radio1 = new RadioButton();
Radio1.ID = "R_" + T.ToString();
Radio1.Text = "Yes";
Radio1.GroupName = "Radio_" + T.ToString();
Radio1.CheckedChanged += new EventHandler(this.CheckedChanged);
Radio1.AutoPostBack = true;
RadioButton Radio2 = new RadioButton();
Radio2.ID = "RX_" + T.ToString();
Radio2.Text = "No";
Radio2.GroupName = "Radio_" + T.ToString();
Radio2.CheckedChanged += new EventHandler(this.CheckedChanged);
Radio2.AutoPostBack = true;
Panel StatusBar = new Panel();
StatusBar.ID = "status_" + T.ToString();
PlaceHolder pcl = new PlaceHolder();
pcl.ID = "test_" + T.ToString();
pcl.Controls.Add(y);
pcl.Controls.Add(new LiteralControl("<br>"));
pcl.Controls.Add(x);
pcl.Controls.Add(new LiteralControl("<br>"));
pcl.Controls.Add(Radio1);
pcl.Controls.Add(Radio2);
pcl.Controls.Add(new LiteralControl("<br>..."));
form1.Controls.Add(pcl);
form1.Controls.Add(StatusBar);
ShowGridView(Radio1);
}
//form1.Controls.Add(new PlaceHolder { ID = "MyStatusBar" });
}
protected void test1()
{
Response.Write("this is a test");
}
protected void CheckedChanged(object sender, EventArgs e)
{
ShowGridView((RadioButton)sender);
}
void ShowGridView(RadioButton r)
{
RadioButton tRadio = r;
var T = tRadio.ID.Split('_')[1];
var statusBarID = "status_" + T;
var StatusBar = tRadio.Parent.FindControl(statusBarID) as Panel;
if (tRadio.Text == "Yes" && tRadio.Checked )
{
Dictionary<string, string> names = new Dictionary<string, string>();
names.Add("1", "a");
names.Add("2", "a");
names.Add("3", "a");
names.Add("4", "a");
names.Add("5", "a");
names.Add("6", "a");
names.Add("7", "a");
names.Add("8", "a");
names.Add("9", "a");
GridView gv = new GridView();
gv.DataSource = names;
ButtonField bOne = new ButtonField();
bOne.CommandName = "buttonclicked";
bOne.ButtonType = ButtonType.Button;
bOne.Text = "Edit";
gv.Columns.Add(bOne);
gv.RowCommand += gv_RowCommand;
gv.DataBind();
StatusBar.Controls.Add(gv);
}
}
void gv_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName.Equals("buttonclicked"))
{
System.Diagnostics.Debug.WriteLine("fired");
}
}