动态添加服务器控件

前台页面：

<asp:Table ID="tabPriceList" runat="server"></asp:Table>//显示控件的表格

//添加服务器控件

<asp:TextBox ID="txtTabNum" runat="server" Width="30px">1</asp:TextBox>

 <asp:LinkButton ID="lnkbtnAdd" runat="server" onclick="lnkbtnAdd_Click">设置</asp:LinkButton>

  <span class="gray">输入1-9之间的数字</span>

后台页面：

//重建控件

public bool IsDynamicLoadControl

{

get

{

object addControl = ViewState["IsDynamicLoadControl"];

return addControl == null ? false : true;

}

set

{

ViewState["IsDynamicLoadControl"] = value;

}

}

protected override void LoadViewState(object savedState)

{

base.LoadViewState(savedState);

if (IsDynamicLoadControl)

{

int rowNum = 1;

if(ViewState["LoadControlNum"] != null)

{

rowNum = Convert.ToInt32(ViewState["LoadControlNum"]);

}

LoadAddControl(rowNum);

}

}

protected void Page_Load(object sender, EventArgs e)

{

if (!this.IsPostBack)

{

LoadAddControl(3); //初始化服务器控件

}

}

//动态添加控件

protected void lnkbtnAdd_Click(object sender, EventArgs e)

{

int rowNum = 1;

string trNum = this.txtTabNum.Text.Trim();

string expression = @"^[1-9]{1}$";

Regex reg = new Regex(expression);

if (reg.IsMatch(trNum))

{

rowNum = Convert.ToInt32(trNum);

LoadAddControl(rowNum);

}

else

{

this.txtTabNum.Text = (this.tabPriceList.Rows.Count - 1).ToString();

PopupMsg("请输入1-9之间的数字");

}

}

private void LoadAddControl(int rowNum)

{

this.tabPriceList.Rows.Clear();

//添加头部

TableRow htr = new TableRow();

TableCell htd1 = new TableCell();

htd1.Text = "机票价格";

htd1.Height = 30;

TableCell htd2 = new TableCell();

htd2.Text = "有效期开始";

TableCell htd3 = new TableCell();

htd3.Text = "有效期结束";

TableCell htd4 = new TableCell();

htd4.Text = "附送保险";

TableCell htd5 = new TableCell();

htd5.Text = "机票舱位";

TableCell htd6 = new TableCell();

htd6.Text = "燃油附加税";

TableCell htd7 = new TableCell();

htd7.Text = "机场建设费";

TableCell htd8 = new TableCell();

htd8.Text = "退改签规定";

htd8.ColumnSpan=2;

htr.Cells.Add(htd1);

htr.Cells.Add(htd2);

htr.Cells.Add(htd3);

htr.Cells.Add(htd4);

htr.Cells.Add(htd5);

htr.Cells.Add(htd6);

htr.Cells.Add(htd7);

htr.Cells.Add(htd8);

this.tabPriceList.Rows.Add(htr);

//添加主体

for (int i = 1; i <= rowNum; i++)

{

TableRow tr = new TableRow();

TableCell td1 = new TableCell();

TableCell td2 = new TableCell();

TableCell td3 = new TableCell();

TableCell td4 = new TableCell();

TableCell td5 = new TableCell();

TableCell td6 = new TableCell();

TableCell td7 = new TableCell();

TableCell td8 = new TableCell();

TableCell td9 = new TableCell();

//第一列：价格

TextBox txtPrice = new TextBox();

txtPrice.ID = "txtPrice" + i;

txtPrice.Width = 70;

td1.Controls.Add(txtPrice);

//第二列：有效期开始时间

TextBox txtDateStart = new TextBox();

txtDateStart.ID = "txtDateStart" + i;

txtDateStart.Width = 100;

txtDateStart.ToolTip = "单击选择日期";

txtDateStart.Attributes["onFocus"] = "WdatePicker({skin:'ext',minDate:'%y-%M-{%d}',maxDate:'#F{$dp.$D(http://www.cnblogs.com/zxjyuan/admin/file://'ctl00_AC_Content_txtDateEnd/" + i + "http://www.cnblogs.com/zxjyuan/admin/file://')||//'2020-10-01//'}'})";

if (i == 1)

{

txtDateStart.Text = DateTime.Today.ToString("yyyy-MM-dd");

}

td2.Controls.Add(txtDateStart);

//第三列：有效期结束时间

TextBox txtDateEnd = new TextBox();

txtDateEnd.ID = "txtDateEnd" + i;

txtDateEnd.Width = 100;

txtDateEnd.ToolTip = "单击选择日期";

txtDateEnd.Attributes["onFocus"] = "WdatePicker({skin:'ext',minDate:'#F{$dp.$D(/ /'ctl00_AC_Content_txtDateStart/" + i + "'%y-%M-{%d} / /'}',maxDate:'2020-10-01'" | |//'%y-%M-{%d}//'}',maxDate:'2020-10-01'})";

td3.Controls.Add(txtDateEnd);

//第四列：赠送保险

TextBox txtSafeAmt = new TextBox();

txtSafeAmt.ID = "txtSafeAmt" + i;

txtSafeAmt.Text = "0";

txtSafeAmt.Width = 70;

td4.Controls.Add(txtSafeAmt);

//第五列：机票舱位

DropDownList ddlFlySpace = new DropDownList();

ddlFlySpace.ID = "ddlFlySpace" + i;

ddlFlySpace.DataSource = BLLDict.GetDictList(1);

ddlFlySpace.DataTextField = "SysName";

ddlFlySpace.DataValueField = "DictID";

ddlFlySpace.DataBind();

td5.Controls.Add(ddlFlySpace);

//第六列：燃油税

TextBox txtOilTax = new TextBox();

txtOilTax.ID = "txtOilTax" + i;

txtOilTax.Text = "0";

txtOilTax.Width = 90;

td6.Controls.Add(txtOilTax);

//第七列：机场建设费

TextBox txtBuildTax = new TextBox();

txtBuildTax.ID = "txtBuildTax" + i;

txtBuildTax.Text = "50";

txtBuildTax.Width = 90;

td7.Controls.Add(txtBuildTax);

//第八列：退改签规定

td8.Text = " <span id=\"addFareRule" + i + "\" class=\"addFareRule\">填写规定</span>";

TextBox txtFareRule = new TextBox();

txtFareRule.ID = "txtFareRule" + i;

txtFareRule.Text = "0";

txtFareRule.TextMode = TextBoxMode.MultiLine;

txtFareRule.Width = 90;

txtFareRule.Style.Add("display", "none");

td9.Controls.Add(txtFareRule);

tr.Cells.Add(td1);

tr.Cells.Add(td2);

tr.Cells.Add(td3);

tr.Cells.Add(td4);

tr.Cells.Add(td5);

tr.Cells.Add(td6);

tr.Cells.Add(td7);

tr.Cells.Add(td8);

tr.Cells.Add(td9);

this.tabPriceList.Rows.Add(tr);

}

ViewState["LoadControlNum"] = rowNum;

IsDynamicLoadControl = true;

}

获得动态控件的值：

//验证并构建机票datatable

string txtDateStart = string.Empty;

string txtDateEnd = string.Empty;

string txtPrice = string.Empty;

DataTable dateTable = new DataTable("dateTable");

dateTable.Columns.Add("ID", typeof(int));

dateTable.Columns.Add("DateStart", typeof(string));

dateTable.Columns.Add("DateEnd", typeof(string));

dateTable.Columns.Add("Price", typeof(string));

int tabNum = this.tabPriceList.Rows.Count;

Regex regular = new Regex(@"^\d+(\.\d{1,2})?$");

for (int t = 1; t < tabNum; t++)

{

//获得动态控件中的值

txtDateStart = ((TextBox)(this.tabPriceList.Rows[t].FindControl("txtDateStart" + t))).Text.Trim();

txtDateEnd = ((TextBox)(this.tabPriceList.Rows[t].FindControl("txtDateEnd" + t))).Text.Trim();

txtPrice = ((TextBox)(this.tabPriceList.Rows[t].FindControl("txtPrice" + t))).Text.Trim();

if (string.IsNullOrEmpty(txtDateStart) || string.IsNullOrEmpty(txtDateEnd) || !regular.IsMatch(txtPrice))

{

PopupMsg("请选择有效期，机票价格为数字");

return;

}

else

{

dateTable.Rows.Add(t, txtDateStart, txtDateEnd, txtPrice);

}

}