动态复选框问题！ [英] Dynamic Checkboxes problem!
问题描述
我在webform（aspx）上动态创建复选框。在我创建
之后，当我检查任何复选框时，没有任何反应。这是我的代码
...
ArrayList LayerNameList1 = LayerNameList;
CheckBox [] checkBoxArray;
int BoxCount = 0;
HtmlTableRow newRow;
HtmlTableCell FieldCell;
System.Web。 UI.HtmlControls.HtmlTable ContainerTable = new HtmlTable（）;
checkBoxArray = new CheckBox [250];
foreach（LayerNameList1中的字符串项）
{
newRow = new HtmlTableRow（）;
FieldCell = new HtmlTableCell（）;
FieldCell.Style.Add（" font- family"，" Arial"）;
FieldCell.Style.Add（" font-size"，" small"）;
checkBoxArray [BoxCount] = new CheckBox（）;
checkBoxArray [BoxCount] .ID = Convert.ToString（BoxCount）;
checkBoxArray [BoxCount] .Text = item;
checkBoxArray [BoxCount] .CheckedChanged + = new
System.EventHandler（checkBox_CheckedChanged）;
FieldCell.Controls.Add（che ckBoxArray [BoxCount]）;
newRow.Controls.Add（FieldCell）;
ContainerTable.Controls.Add（newRow）;
BoxCount ++;
}
this.placeHolder.Controls.Add（ContainerTable）;
}
public void checkBox_CheckedChanged（object sender，System.EventArgs e）
{
CheckBox cb =（CheckBox）sender;
if（ cb.Checked）
{testdel.Text =" 1" ;; }
其他
{testdel.Text =" 2";
}
}
有什么建议吗？
问候
Praveen
I create the checkboxes dynamically on my webform (aspx). after I create
them, when I check any of the checkboxes, nothing happens. Here is my code
...
ArrayList LayerNameList1 = LayerNameList;
CheckBox[] checkBoxArray;
int BoxCount = 0;
HtmlTableRow newRow;
HtmlTableCell FieldCell;
System.Web.UI.HtmlControls.HtmlTable ContainerTable = new HtmlTable();
checkBoxArray = new CheckBox[250];
foreach(string item in LayerNameList1)
{
newRow = new HtmlTableRow();
FieldCell = new HtmlTableCell();
FieldCell.Style.Add("font-family", "Arial");
FieldCell.Style.Add("font-size", "smaller");
checkBoxArray[BoxCount] = new CheckBox();
checkBoxArray[BoxCount].ID = Convert.ToString(BoxCount);
checkBoxArray[BoxCount].Text = item;
checkBoxArray[BoxCount].CheckedChanged += new
System.EventHandler(checkBox_CheckedChanged);
FieldCell.Controls.Add(checkBoxArray[BoxCount]);
newRow.Controls.Add(FieldCell);
ContainerTable.Controls.Add(newRow);
BoxCount++;
}
this.placeHolder.Controls.Add(ContainerTable);
}
public void checkBox_CheckedChanged(object sender, System.EventArgs e)
{
CheckBox cb = (CheckBox) sender;
if (cb.Checked)
{ testdel.Text = "1"; }
else
{ testdel.Text = "2";
}
}
Any suggestions?
Regards
Praveen
推荐答案
嗨史蒂文，
我认为你应该设置AutoPostBack =" True"
杰
" Steven"写道：
Hi Steven,
I think you should set AutoPostBack="True".
Jie
"Steven" wrote:
我在webform（aspx）上动态创建复选框。在我创建它们之后，当我检查任何复选框时，没有任何反应。这是我的代码
ArrayList LayerNameList1 = LayerNameList;
CheckBox [] checkBoxArray;
int BoxCount = 0;
HtmlTableRow newRow;
HtmlTableCell FieldCell;
System.Web.UI.HtmlControls.HtmlTable ContainerTable = new HtmlTable（）;
checkBoxArray = new CheckBox [250];
foreach（LayerNameList1中的字符串项）
{
newRow = new HtmlTableRow（）;
FieldCell = new HtmlTableCell（）;
FieldCell.Style.Add（" font-family" ，Arial）;
FieldCell.Style.Add（" font-size"，" small"）;
checkBoxArray [BoxCount] = new CheckBox（）;
checkBoxArray [ BoxCount] .ID = Convert.ToString（BoxCount）;
checkBoxArray [BoxCount] .Text = item;
checkBoxArray [BoxCount] .CheckedChanged + = new
System.EventHandler（ checkBox_CheckedChanged）;
FieldCell.Controls.Add（checkBoxArray [BoxCount]）;
newRow.Controls.Add（FieldCell）;
ContainerTable.Controls.Add（newRow）; < b r /> BoxCount ++;
}
this.placeHolder.Controls.Add（ContainerTable）;
}
public void checkBox_CheckedChanged（object sender，System.EventArgs e）
{CheckBox cb =（CheckBox）发件人;
if（cb.Checked）
{testdel.Text =" 1" ;; }
其他
{testdel.Text =" 2" ;;
}
有什么建议吗？
问候
Praveen
I create the checkboxes dynamically on my webform (aspx). after I create
them, when I check any of the checkboxes, nothing happens. Here is my code
...
ArrayList LayerNameList1 = LayerNameList;
CheckBox[] checkBoxArray;
int BoxCount = 0;
HtmlTableRow newRow;
HtmlTableCell FieldCell;
System.Web.UI.HtmlControls.HtmlTable ContainerTable = new HtmlTable();
checkBoxArray = new CheckBox[250];
foreach(string item in LayerNameList1)
{
newRow = new HtmlTableRow();
FieldCell = new HtmlTableCell();
FieldCell.Style.Add("font-family", "Arial");
FieldCell.Style.Add("font-size", "smaller");
checkBoxArray[BoxCount] = new CheckBox();
checkBoxArray[BoxCount].ID = Convert.ToString(BoxCount);
checkBoxArray[BoxCount].Text = item;
checkBoxArray[BoxCount].CheckedChanged += new
System.EventHandler(checkBox_CheckedChanged);
FieldCell.Controls.Add(checkBoxArray[BoxCount]);
newRow.Controls.Add(FieldCell);
ContainerTable.Controls.Add(newRow);
BoxCount++;
}
this.placeHolder.Controls.Add(ContainerTable);
}
public void checkBox_CheckedChanged(object sender, System.EventArgs e)
{
CheckBox cb = (CheckBox) sender;
if (cb.Checked)
{ testdel.Text = "1"; }
else
{ testdel.Text = "2";
}
}
Any suggestions?
Regards
Praveen
你好彭，
你能不能请告诉我，我应该在哪里设置AutoPostBack =" True"在代码下面的
。我试过checkBox_CheckedChanged函数。但似乎我很失心。
问候
史蒂文
彭杰 < Pe的***** @ discussions.microsoft.com>在留言中写道
新闻：2A ********************************** @ microsof t.com ...
Hello Peng,
Could you please tell me, where should I set AutoPostBack="True" in the
below code. I tried in checkBox_CheckedChanged function. But seems I''m
missing something.
Regards
Steven
"Peng Jie" <Pe*****@discussions.microsoft.com> wrote in message
news:2A**********************************@microsof t.com...
嗨史蒂文，
我认为你应该设置AutoPostBack =" True"
Jie
史蒂文写道：
Hi Steven,
I think you should set AutoPostBack="True".
Jie
"Steven" wrote:
我在webform（aspx）上动态创建复选框。在我创建它们之后，当我检查任何复选框时，没有任何反应。这是我的
代码
ArrayList LayerNameList1 = LayerNameList;
CheckBox [] checkBoxArray;
int BoxCount = 0;
HtmlTableRow newRow;
HtmlTableCell FieldCell;
System.Web.UI.HtmlControls.HtmlTable ContainerTable = new HtmlTable（）;
checkBoxArray = new CheckBox [250];
foreach（LayerNameList1中的字符串项）
{/ / newRow = new HtmlTableRow（）;
FieldCell = new HtmlTableCell（）;
FieldCell.Style.Add（" font-family"，" Arial"）;
FieldCell.Style.Add（" font-size"，" small"）;
checkBoxArray [BoxCount] = new CheckBox（）;
checkBoxArray [BoxCount] .ID = Convert.ToString（BoxCount）;
checkBoxArray [BoxCount] .Text = item;
checkBoxArray [BoxCount] .CheckedChanged + = new
System.EventHandler（checkBox_CheckedChanged）;
FieldCell.Controls.Add（checkBoxArray [BoxCount]）;
newRow.Controls.Add（FieldCell）;
ContainerTable.Controls.Add（ newR ow）;
BoxCount ++;
}
this.placeHolder.Controls.Add（ContainerTable）;
public void checkBox_CheckedChanged（object sender，System .EventArgs e）
{CheckBox cb =（CheckBox）发件人;
if（cb.Checked）
{testdel.Text =" 1" ;; }
其他
{testdel.Text =" 2" ;;
}
有什么建议吗？
问候
Praveen
I create the checkboxes dynamically on my webform (aspx). after I create
them, when I check any of the checkboxes, nothing happens. Here is my
code
...
ArrayList LayerNameList1 = LayerNameList;
CheckBox[] checkBoxArray;
int BoxCount = 0;
HtmlTableRow newRow;
HtmlTableCell FieldCell;
System.Web.UI.HtmlControls.HtmlTable ContainerTable = new HtmlTable();
checkBoxArray = new CheckBox[250];
foreach(string item in LayerNameList1)
{
newRow = new HtmlTableRow();
FieldCell = new HtmlTableCell();
FieldCell.Style.Add("font-family", "Arial");
FieldCell.Style.Add("font-size", "smaller");
checkBoxArray[BoxCount] = new CheckBox();
checkBoxArray[BoxCount].ID = Convert.ToString(BoxCount);
checkBoxArray[BoxCount].Text = item;
checkBoxArray[BoxCount].CheckedChanged += new
System.EventHandler(checkBox_CheckedChanged);
FieldCell.Controls.Add(checkBoxArray[BoxCount]);
newRow.Controls.Add(FieldCell);
ContainerTable.Controls.Add(newRow);
BoxCount++;
}
this.placeHolder.Controls.Add(ContainerTable);
}
public void checkBox_CheckedChanged(object sender, System.EventArgs e)
{
CheckBox cb = (CheckBox) sender;
if (cb.Checked)
{ testdel.Text = "1"; }
else
{ testdel.Text = "2";
}
}
Any suggestions?
Regards
Praveen
我的意思是你可以添加
checkBoxArray [BoxCount] .AutoPostBack = true;
进入你的foreach语句。
然后你可以解雇服务器端事件并调用CheckedChanged函数。
" Steven"写道：
What I mean is you can add
checkBoxArray[BoxCount].AutoPostBack = true;
into your foreach statement.
Then you can fire server side event and call CheckedChanged function.
"Steven" wrote:
你好彭，
你能告诉我，我应该在哪里设置AutoPostBack =" True"在下面的代码中。我试过checkBox_CheckedChanged函数。但似乎我错过了一些东西。
问候
史蒂文
彭杰 < Pe的***** @ discussions.microsoft.com>在消息中写道
新闻：2A ********************************** @ microsof t.com。 ..
Hello Peng,
Could you please tell me, where should I set AutoPostBack="True" in the
below code. I tried in checkBox_CheckedChanged function. But seems I''m
missing something.
Regards
Steven
"Peng Jie" <Pe*****@discussions.microsoft.com> wrote in message
news:2A**********************************@microsof t.com...
嗨史蒂文，
我认为你应该设置AutoPostBack =" True"
杰
"史蒂芬"写道：
Hi Steven,
I think you should set AutoPostBack="True".
Jie
"Steven" wrote:
我在webform（aspx）上动态创建复选框。在我创建它们之后，当我检查任何复选框时，没有任何反应。这是我的
代码
ArrayList LayerNameList1 = LayerNameList;
CheckBox [] checkBoxArray;
int BoxCount = 0;
HtmlTableRow newRow;
HtmlTableCell FieldCell;
System.Web.UI.HtmlControls.HtmlTable ContainerTable = new HtmlTable（）;
checkBoxArray = new CheckBox [250];
foreach（LayerNameList1中的字符串项）
{/ / newRow = new HtmlTableRow（）;
FieldCell = new HtmlTableCell（）;
FieldCell.Style.Add（" font-family"，" Arial"）;
FieldCell.Style.Add（" font-size"，" small"）;
checkBoxArray [BoxCount] = new CheckBox（）;
checkBoxArray [BoxCount] .ID = Convert.ToString（BoxCount）;
checkBoxArray [BoxCount] .Text = item;
checkBoxArray [BoxCount] .CheckedChanged + = new
System.EventHandler（checkBox_CheckedChanged）;
FieldCell.Controls.Add（checkBoxArray [BoxCount]）;
newRow.Controls.Add（FieldCell）;
ContainerTable.Controls.Add（ newR ow）;
BoxCount ++;
}
this.placeHolder.Controls.Add（ContainerTable）;
public void checkBox_CheckedChanged（object sender，System .EventArgs e）
{CheckBox cb =（CheckBox）发件人;
if（cb.Checked）
{testdel.Text =" 1" ;; }
其他
{testdel.Text =" 2" ;;
}
有什么建议吗？
问候
Praveen
I create the checkboxes dynamically on my webform (aspx). after I create
them, when I check any of the checkboxes, nothing happens. Here is my
code
...
ArrayList LayerNameList1 = LayerNameList;
CheckBox[] checkBoxArray;
int BoxCount = 0;
HtmlTableRow newRow;
HtmlTableCell FieldCell;
System.Web.UI.HtmlControls.HtmlTable ContainerTable = new HtmlTable();
checkBoxArray = new CheckBox[250];
foreach(string item in LayerNameList1)
{
newRow = new HtmlTableRow();
FieldCell = new HtmlTableCell();
FieldCell.Style.Add("font-family", "Arial");
FieldCell.Style.Add("font-size", "smaller");
checkBoxArray[BoxCount] = new CheckBox();
checkBoxArray[BoxCount].ID = Convert.ToString(BoxCount);
checkBoxArray[BoxCount].Text = item;
checkBoxArray[BoxCount].CheckedChanged += new
System.EventHandler(checkBox_CheckedChanged);
FieldCell.Controls.Add(checkBoxArray[BoxCount]);
newRow.Controls.Add(FieldCell);
ContainerTable.Controls.Add(newRow);
BoxCount++;
}
this.placeHolder.Controls.Add(ContainerTable);
}
public void checkBox_CheckedChanged(object sender, System.EventArgs e)
{
CheckBox cb = (CheckBox) sender;
if (cb.Checked)
{ testdel.Text = "1"; }
else
{ testdel.Text = "2";
}
}
Any suggestions?
Regards
Praveen
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