公司要做一个类似于白名单的功能，要求新增时用户点击按钮可以动态的增加或减少GridView的行数。
直接上代码：
首先先创建一个和数据库一样的类：
public class WhiteListConfig
{
private int strID;
public int StrID
{
get
{
return strID;
}
set { strID = value; }
}
private string strIPType;
public string StrIPType
{
get
{
return strIPType;
}
set
{
strIPType = value;
}
}
private string strIPAddr;
public string StrIPAddr
{
get
{
return strIPAddr;
}
set
{
strIPAddr = value;
}
}
private string strAddDateTime;
public string StrAddDateTime
{
get
{
return strAddDateTime;
}
set
{
strAddDateTime = value;
}
}
private string strMemo;
public string StrMemo
{
get
{
return strMemo;
}
set { strMemo = value; }
}
}
前面页面：
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<div align="center">
<table width="50%">
<tbody>
<tr>
<td valign="top" align="center">
<span style="font-size: 14pt; font-family: 宋体">
<br />
<asp:Label ID="LabTrade" runat="server" CssClass="title1">新增白名单</asp:Label>
<br />
</span>
</td>
</tr>
<tr>
<%--<td style="height: 24px; ">
<b>添加白名单</b> <asp:ImageButton ID="btnAddWhite" runat="server" ImageUrl="~/images/add_more.gif"
OnClick="btnAddWhite_Click" Style="border-width: 0px;" Text="" /><label for="btnAddWhite"
style="color: Blue;" onmouseover="this.style.cursor='hand';this.style.color='orange';"
onmouseout="this.style.color='#0000FF';">（点击添加明细）</label>
</td>--%>
<td style="height: 24px;" align="right">
<%--<span class="btn_2letter" style="display: inline-block;">
<i class="fa fa-plus"></i>
<asp:Button ID="btnAddWhite" runat="server" BackColor="Transparent" OnClick="btnAddWhite1_Click"
Text="新增" BorderStyle="None" />
</span>--%>
<asp:Button ID="btnAddWhite" runat="server" CssClass="btn_2letter" OnClick="btnAddWhite1_Click" Text="新增"/>
<asp:Button ID="btnSave" runat="server" CssClass="btn_2letter" Text="保存" OnClick="btnSave_Click" />
</td>
</tr>
<tr>
<td style="padding: 0;">
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:GridView ID="GridWhiteList" runat="server" AutoGenerateColumns="False" Style="font-size: 12px;"
CssClass="DataGridCtl" Width="100%" BorderStyle="none" CellPadding="0" HeaderStyle-HorizontalAlign="Center"
HorizontalAlign="Center" OnRowDataBound="GridWhiteList_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="序号">
<ItemTemplate>
<%#Container.DataItemIndex + 1%>
</ItemTemplate>
<HeaderStyle HorizontalAlign="Center" />
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
类型
</HeaderTemplate>
<ItemTemplate>
<input id="hiddenKey" type="hidden" runat="server" class="hiddenKey" value='<%#Eval("Key")%>'
rowindex='<%#Container.DisplayIndex%>' />
<select id="selWeight" runat="server" style="border:solid 1px #ABADB3;width:100px;" rowindex='<%#Container.DisplayIndex%>'
>
</select>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center"/>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
IP地址
</HeaderTemplate>
<ItemTemplate>
<input id="txtIPAddr" style="width:120px" type="text" runat="server" rowindex='<%#Container.DisplayIndex%>'
maxlength="20" />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
备注
</HeaderTemplate>
<ItemTemplate>
<%--<input id="txtMemo" type="text" runat="server"
rowindex='<%#Container.DisplayIndex%>' class='<%#"input_short1 Wdate EndTime Enabled" + Container.DisplayIndex%>' />--%>
<textarea id="textMemo" runat="server" onkeyup="checkWordCount(this);" rowindex='<%#Container.DisplayIndex%>' style="width:300px;"></textarea>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField HeaderText="删除">
<HeaderStyle HorizontalAlign="Center" />
<ItemTemplate>
<asp:ImageButton ID="ListDel" runat="server" ImageUrl="../images/del.gif" CommandName='<%#Bind("Key")%>'
OnClick="btnDeleteWhite_Click" />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
<table class="HeaderCss" cellspacing="0" rules="all" id="Table2" style="border-collapse: collapse;">
<tr style="background-color: #E5F0F2;">
<th scope="col" align="center">
序号
</th>
<th scope="col" align="center">
类型
</th>
<th scope="col" align="center">
IP地址
</th>
<th scope="col" align="center" >
备注
</th>
<th scope="col" align="center">
删除
</th>
</tr>
</table>
</EmptyDataTemplate>
<RowStyle BackColor="White" />
<EditRowStyle BorderStyle="None" />
<HeaderStyle BorderStyle="None" CssClass="HeaderCss" BackColor="#E5F0F2" HorizontalAlign="Center" />
<PagerStyle BackColor="#E7E7E7" ForeColor="Black" HorizontalAlign="Center" Height="10px" />
</asp:GridView>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnAddWhite" EventName="Click<span style="font-family: Arial, Helvetica, sans-serif;">" /></span>
</Triggers>
</asp:UpdatePanel>
</td>
</tr>
</tbody>
</table>
</div>
</form>
</body>后台c#代码：
public partial class CSPZ_WhiteListAdd : System.Web.UI.Page
{
IBusinessQuery newIBusQuery = BusinessFactory.CreateDataQuery();//取数据的接口
protected DataTable WhiteDT
{
get
{
DataTable dt = ViewState["WhiteDT"] as DataTable;
if (dt == null)
{
ViewState["WhiteDT"] = dt = new DataTable();
dt.Columns.Add("IPType", typeof(string));
dt.Columns.Add("IPAddr", typeof(string));
dt.Columns.Add("AddDateTime", typeof(string));
dt.Columns.Add("Memo", typeof(string));
dt.PrimaryKey = new DataColumn[] { dt.Columns.Add("Key") };
}
return dt;
}
}
protected List<WhiteListConfig> WhiteList
{
get
{
List<WhiteListConfig> wList = new List<WhiteListConfig>();
DataTable dt = this.WhiteDT;
if (dt.Rows.Count > 0)
{
WhiteListConfig w = null;
foreach (DataRow row in dt.Rows)
{
w = new WhiteListConfig();
w.StrIPType = row["IPType"].ToString();
w.StrIPAddr = row["IPAddr"].ToString();
w.StrAddDateTime = row["AddDateTime"].ToString();
w.StrMemo = row["Memo"].ToString();
wList.Add(w);
}
}
return wList;
}
set
{
List<WhiteListConfig> wList = value;
DataTable dt = this.WhiteDT;
if (dt.Rows.Count > 0)
{
dt.Rows.Clear();
}
if (wList != null && wList.Count > 0)
{
DataRow row = null;
foreach (WhiteListConfig w in wList)
{
row = dt.NewRow();
row["Key"] = Guid.NewGuid().ToString();
row["IPType"] = w.StrIPType;
row["IPAddr"] = w.StrIPAddr;
row["AddDateTime"] = w.StrAddDateTime.ToString();
row["Memo"] = w.StrMemo;
dt.Rows.Add(row);
}
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
DataRow row = WhiteDT.NewRow();
row["Key"] = Guid.NewGuid().ToString();
WhiteDT.Rows.Add(row);
GridWhiteList.DataSource = WhiteDT;
GridWhiteList.DataBind();
}
}
protected void btnAddWhite1_Click(object sender, EventArgs e)
{
for (int i = 0; i < GridWhiteList.Rows.Count; i++)
{
HtmlSelect hs = GridWhiteList.Rows[i].Cells[1].FindControl("selWeight") as HtmlSelect;
string strIPType = hs.Value;
WhiteDT.Rows[i]["IPType"] = strIPType;
HtmlInputText hit = GridWhiteList.Rows[i].Cells[2].FindControl("txtIPAddr") as HtmlInputText;
string strIPAddr = hit.Value;
if (!string.IsNullOrEmpty(strIPAddr))
{
if (Regex.IsMatch(strIPAddr, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$") == false)
{
ScriptManager.RegisterStartupScript(this, this.GetType(), "Msg", String.Format("<script type=\"text/javascript\" language=\"javascript\">alert('IP地址不正确！')</script>"), false);
return;
}
else
{
WhiteDT.Rows[i]["IPAddr"] = strIPAddr;
}
}
else
{
ScriptManager.RegisterStartupScript(this, this.GetType(), "Msg", String.Format("<script type=\"text/javascript\" language=\"javascript\">alert('IP地址不能为空！')</script>"), false);
return;
}
WhiteDT.Rows[i]["AddDateTime"] = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
HtmlTextArea hta = GridWhiteList.Rows[i].Cells[3].FindControl("textMemo") as HtmlTextArea;
string strMemo = hta.Value;
WhiteDT.Rows[i]["Memo"] = strMemo;
}
for (int i = 0; i < WhiteDT.Rows.Count; i++)
{
for (int j = 0; j < WhiteDT.Rows.Count; j++)
{
if (i == j)
continue;
else
{
if (WhiteDT.Rows[i]["IPType"].ToString() == WhiteDT.Rows[j]["IPType"].ToString() && WhiteDT.Rows[i]["IPAddr"].ToString() == WhiteDT.Rows[j]["IPAddr"].ToString())
{
ScriptManager.RegisterStartupScript(this, this.GetType(), "Msg", String.Format("<script type=\"text/javascript\" language=\"javascript\">alert('IP地址重复！')</script>"), false);
return;
}
}
}
}
DataRow row = WhiteDT.NewRow();
row["Key"] = Guid.NewGuid().ToString();
WhiteDT.Rows.Add(row);
GridWhiteList.DataSource = WhiteDT;
GridWhiteList.DataBind();
ScriptManager.RegisterStartupScript(this, this.GetType(), "Msg", String.Format("<script type=\"text/javascript\" language=\"javascript\">{0}</script>", "SetTimeControl();"), false);
}
protected void btnDeleteWhite_Click(object sender, ImageClickEventArgs e)
{
string StrKey = ((ImageButton)sender).CommandName;
if (String.IsNullOrEmpty(StrKey))
{
return;
}
DataRow selectedRow = WhiteDT.Rows.Find(StrKey);
if (selectedRow != null)
{
if (GridWhiteList.Rows.Count == 1)
{
ScriptManager.RegisterStartupScript(this, this.GetType(), "Msg", String.Format("<script type=\"text/javascript\" language=\"javascript\">alert('不允许删除！')</script>"), false);
return;
}
WhiteDT.Rows.Remove(selectedRow);
GridWhiteList.DataSource = WhiteDT;
GridWhiteList.DataBind();
}
ScriptManager.RegisterStartupScript(this, this.GetType(), "Msg", String.Format("<script type=\"text/javascript\" language=\"javascript\">{0}</script>", "SetTimeControl();"), false);
}
protected void GridWhiteList_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
HtmlSelect selWeight = e.Row.FindControl("selWeight") as HtmlSelect;
ListItem tmpItem = null;
tmpItem = new ListItem();
tmpItem.Text = "源地址";
tmpItem.Value = "源地址";
selWeight.Items.Add(tmpItem);
tmpItem = new ListItem();
tmpItem.Text = "目标地址";
tmpItem.Value = "目标地址";
selWeight.Items.Add(tmpItem);
if (DataBinder.Eval(e.Row.DataItem, "IPType").ToString() == "源地址")
{
((HtmlSelect)e.Row.FindControl("selWeight")).SelectedIndex = 0;
}
else if (DataBinder.Eval(e.Row.DataItem, "IPType").ToString() == "目标地址")
{
((HtmlSelect)e.Row.FindControl("selWeight")).SelectedIndex = 1;
}
((HtmlInputText)e.Row.FindControl("txtIPAddr")).Value = DataBinder.Eval(e.Row.DataItem, "IPAddr").ToString();
((HtmlTextArea)e.Row.FindControl("textMemo")).Value = DataBinder.Eval(e.Row.DataItem, "Memo").ToString();
}
}
protected void btnSave_Click(object sender, EventArgs e)
{
DataTable dt = WhiteDT.Clone();
dt.PrimaryKey = null;
dt.Columns.Remove("Key");
if (GridWhiteList.Rows.Count == 0)
{
Response.Write("<script>alert('请输入至少一条数据！');</script>");
return;
}
for (int i = 0; i < GridWhiteList.Rows.Count; i++)
{
DataRow dr = dt.NewRow();
HtmlSelect hs = GridWhiteList.Rows[i].Cells[1].FindControl("selWeight") as HtmlSelect;
string strIPType = hs.Value;
dr["IPType"] = strIPType;
HtmlInputText hit = GridWhiteList.Rows[i].Cells[2].FindControl("txtIPAddr") as HtmlInputText;
string strIPAddr = hit.Value;
if (!string.IsNullOrEmpty(strIPAddr))
{
if (Regex.IsMatch(strIPAddr, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$") == false)
{
Response.Write("<script>alert('IP地址不正确！')</script>");
return;
}
else
{
dr["IPAddr"] = strIPAddr;
}
}
else
{
Response.Write("<script>alert('IP地址不能为空！')</script>");
return;
}
dr["AddDateTime"] = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
HtmlTextArea hta = GridWhiteList.Rows[i].Cells[3].FindControl("textMemo") as HtmlTextArea;
string strMemo = hta.Value;
dr["Memo"] = strMemo;
dt.Rows.Add(dr);
}
DataTable dtWhite = newIBusQuery.GetWhiteListConfig("", "");
for (int i = 0; i < dt.Rows.Count; i++)
{
for (int j = 0; j < dtWhite.Rows.Count; j++)
{
if (dt.Rows[i]["IPAddr"].ToString() == dtWhite.Rows[j]["IPAddr"].ToString() && dt.Rows[i]["IPType"].ToString() == dtWhite.Rows[j]["IPType"].ToString())
{
Response.Write("<script>alert('第" + (i + 1) + "条数据已存在！');</script>");
return;
}
}
}
IPWhiteListConfig iw = new IPWhiteListConfig();
dt.TableName = "T_WhiteListConfig";
iw.AddWhiteIP(dt);
Response.Write("<script>alert('保存成功！');</script>");
Page.RegisterStartupScript("", "<script>window.opener.location.href = window.opener.location.href;window.close();</script>");
}
}