复制代码 代码如下:
<style type="text/css">
.item
{
margin:10px;
border-bottom:solid 1px #CCC;
}
.item2
{
margin:5px;
}
.input
{
width:200px;
}
</style>
复制代码 代码如下:
<div>
<div>
Please input a number:
<asp:TextBox runat="server" CssClass="item"></asp:TextBox>
<asp:RequiredFieldValidator runat="server" ControlToValidate="txtTextCount" ValidationGroup="CreateTextBox" Display="Dynamic"
ErrorMessage="Required to input content!"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ControlToValidate="txtTextCount" ValidationGroup="CreateTextBox" Display="Dynamic"
runat="server" ErrorMessage="Only number is valid!" ValidationExpression="^/d+$"></asp:RegularExpressionValidator>
<asp:Button runat="server" Text="Create TextBox List" ValidationGroup="CreateTextBox"
onclick="btnCreate_Click" />
<asp:Button runat="server" Text="Get TextBox Content" ValidationGroup="ShowListContent"
onclick="btnOK_Click" />
</div>
<div runat="server"></div>
<div runat="server">
</div>
</div>
复制代码 代码如下:
<div>
<div>
Please input a number:
<asp:TextBox runat="server" CssClass="item"></asp:TextBox>
<asp:RequiredFieldValidator runat="server" ControlToValidate="txtTextCount" ValidationGroup="CreateTextBox" Display="Dynamic"
ErrorMessage="Required to input content!"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ControlToValidate="txtTextCount" ValidationGroup="CreateTextBox" Display="Dynamic"
runat="server" ErrorMessage="Only number is valid!" ValidationExpression="^/d+$"></asp:RegularExpressionValidator>
<asp:Button runat="server" Text="Create TextBox List" ValidationGroup="CreateTextBox"
onclick="btnCreate_Click" />
<asp:Button runat="server" Text="Get TextBox Content" ValidationGroup="ShowListContent"
onclick="btnOK_Click" />
</div>
<div runat="server"></div>
<div runat="server">
</div>
</div>
复制代码 代码如下:
///<summary>
/// Create textbox list
///</summary>
///<param>textbox list count</param>
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}.<br />", i+1, txt.Text.Trim());
}
}
divMessage.InnerHtml = sbResult.ToString();
}
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