<asp:TextBox ID="txtPageNum" runat="server" CssClass="txtInput2 small2" AutoPostBack="True"
OnTextChanged="txtPageNum_TextChanged" onkeypress="return (/[\d]/.test(String.fromCharCode(event.keyCode)));" >10</asp:TextBox>
<asp:RegularExpressionValidator ID="revEnterNum" runat="server" ControlToValidate="txtPageNum"
Display="Dynamic" ErrorMessage="请输入数字!" ValidationExpression="^([1-9][0-9]*)$"></asp:RegularExpressionValidator>
<asp:RequiredFieldValidator ID="rfvNotEmpty" runat="server" ControlToValidate="txtPageNum"
Display="Dynamic" ErrorMessage="不能为空,请输入数字!"></asp:RequiredFieldValidator>
////设置分页数量
protected void txtPageNum_TextChanged(object sender, EventArgs e)
{
Page.Validate();
if (Page.IsValid)
{
AspNetPager1.CurrentPageIndex = 1;
AspNetPager1.PageSize = Convert.ToInt32(txtPageNum.Text.Trim());
RptBind();
}
}