|
以下为引用的内容：
///
/// Create textbox list
///
private void CreateTextBoxList( int num)
{
HtmlGenericControl div;
HtmlGenericControl span;
TextBox txt;
RegularExpressionValidator rev;
for ( int i = 0; i < num; i++)
{
// 创建div
div = new HtmlGenericControl();
div.TagName = "div";
div.ID = "divTextBox" + i.ToString();
div.Attributes[ "class"] = "item2";
// 创建span
span = new HtmlGenericControl();
span.ID = "spanTextBox" + i.ToString();
span.InnerHtml = "Url Address" + (i+1).ToString() + ":";
// 创建TextBox
txt = new TextBox();
txt.ID = "txt" + i.ToString();
txt.CssClass = "input";
// 创建格式验证控件，并且将其关联到对应的TextBox
rev = new RegularExpressionValidator();
rev.ID = "rev" + i.ToString();
rev.ControlToValidate = txt.ID;
rev.Display = ValidatorDisplay.Dynamic;
rev.ValidationGroup = "ShowListContent";
rev.ValidationExpression = @"(http(s)?://)?([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?";
rev.ErrorMessage = "Invalid url Address!";
// 添加控件到容器
div.Controls.Add(span);
div.Controls.Add(txt);
div.Controls.Add(rev);
divControls.Controls.Add(div);
}
}
protected void Page_Load( object sender, EventArgs e)
{
if ( this.IsPostBack)
{
int txtCount = int.Parse(txtTextCount.Text);
// 注意：每次PostBack时，都需要重新动态创建TextBox
CreateTextBoxList(txtCount);
}
}
protected void btnCreate_Click( object sender, EventArgs e)
{
txtTextCount.Enabled = false;
btnCreate.Enabled = false;
}
protected void btnOK_Click( object sender, EventArgs e)
{
TextBox txt;
StringBuilder sbResult = new StringBuilder() ;
int txtCount = int.Parse(txtTextCount.Text);
// 遍历获取动态创建的TextBox们中的Text值
for ( int i = 0; i < txtCount; i++)
{
// 注意：这里必须通过上层容器来获取动态创建的TextBox，才能获取取ViewState内容
txt = divControls.FindControl( "txt" + i.ToString()) as TextBox;
if (txt != null && txt.Text.Trim().Length > 0)
{
sbResult.AppendFormat( "Url Address{0}: {1}.
", i+1, txt.Text.Trim());
}
}
divMessage.InnerHtml = sbResult.ToString();
}
|