GridView中的CheckBox 翻页时记录选中状态

思路就是翻页的时候记录一下checkbox的选中状态 可以赋值给viewstate 或者session 都行这里我用的是 viewstate ，记录完了 在根据记录的选择状态 进库 或者是 给checkbox赋值

//页面加载时给GridView赋值

string[] B = ds.Tables[0].Rows[0]["KaoPingYuan"].ToString().Split(',');
ArrayList al1 = new ArrayList(B);
ViewState["CHECKED_ITEMS"] = al1;

RePopulateValues();

#region =考评员gridview1相关代码=

private void RememberOldValues()
{
ArrayList categoryIDList = new ArrayList();
int index = -1;
foreach (GridViewRow row in GridView1.Rows)
{
index = (int)GridView1.DataKeys[row.RowIndex].Value;
bool result = ((CheckBox)row.FindControl("checkD")).Checked;

if (ViewState["CHECKED_ITEMS"] != null)
categoryIDList = (ArrayList)ViewState["CHECKED_ITEMS"];
if (result)
{
if (!categoryIDList.Contains(index))
categoryIDList.Add(index);
}
else
categoryIDList.Remove(index);
}
if (categoryIDList != null && categoryIDList.Count > 0)
ViewState["CHECKED_ITEMS"] = categoryIDList;
}

private void RePopulateValues()
{
ArrayList categoryIDList = (ArrayList)ViewState["CHECKED_ITEMS"];
if (categoryIDList != null && categoryIDList.Count > 0)
{
foreach (GridViewRow row in GridView1.Rows)
{
int index = (int)GridView1.DataKeys[row.RowIndex].Value;
if (categoryIDList.Contains(index.ToString()))//这里如果你数据库里面存的是int形式的id 就不用tostring，但是因为是复选 储存形式大部分都是"id1,id2,id3,id4"的字符串这时候就需要把GridView1绑定的int型的id转成string才能判断是否相等。
{
CheckBox myCheckBox = (CheckBox)row.FindControl("checkD");
myCheckBox.Checked = true;
}
}
}
}

protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
RememberOldValues();
GridView theGrid = sender as GridView;
int newPageIndex = 0;
if (-2 == e.NewPageIndex)
{
TextBox txtNewPageIndex = null;
GridViewRow pagerRow = theGrid.BottomPagerRow;
if (null != pagerRow)
txtNewPageIndex = pagerRow.FindControl("txtNewPageIndex") as TextBox;
if (null != txtNewPageIndex)
{
if (Regex.IsMatch(txtNewPageIndex.Text, @"^\d+$"))
newPageIndex = int.Parse(txtNewPageIndex.Text) - 1;
else
Page.ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('请输入数字');</script>");
}
}
else
newPageIndex = e.NewPageIndex;
newPageIndex = newPageIndex < 0 ? 0 : newPageIndex;
newPageIndex = newPageIndex >= theGrid.PageCount ? theGrid.PageCount - 1 : newPageIndex;
theGrid.PageIndex = newPageIndex;
LoadGrivdView1();
RePopulateValues();}

#endregion
protected void LoadGrivdView1()
{
DataSet ds = db.db.GetDataSet("select * from tb_KPY");
GridView1.DataSource = ds;
GridView1.DataBind();
}

<pre name="code" class="cpp">protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
RememberOldValues();
GridView theGrid = sender as GridView;
int newPageIndex = 0;
if (-2 == e.NewPageIndex)
{
TextBox txtNewPageIndex = null;
GridViewRow pagerRow = theGrid.BottomPagerRow;
if (null != pagerRow)
txtNewPageIndex = pagerRow.FindControl("txtNewPageIndex") as TextBox;
if (null != txtNewPageIndex)
{
if (Regex.IsMatch(txtNewPageIndex.Text, @"^\d+$"))
newPageIndex = int.Parse(txtNewPageIndex.Text) - 1;
else
Page.ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('请输入数字');</script>");
}
}
else
newPageIndex = e.NewPageIndex;
newPageIndex = newPageIndex < 0 ? 0 : newPageIndex;
newPageIndex = newPageIndex >= theGrid.PageCount ? theGrid.PageCount - 1 : newPageIndex;
theGrid.PageIndex = newPageIndex;
LoadGrivdView1();
RePopulateValues();}

//保存的时候进入数据库

<span style="white-space:pre">	</span>    RememberOldValues();
string list = "";
string id = Guid.NewGuid().ToString();
ArrayList categoryIDList = new ArrayList();
categoryIDList = (ArrayList)ViewState["CHECKED_ITEMS"];
for (int i = 0; i < categoryIDList.Count; i++)
{
list += categoryIDList[i] + ",";
}
list.TrimEnd(',');

然后把list insert into 表就行了

前台gridview代码

<asp:GridView ID="GridView1" runat="server" RowStyle-HorizontalAlign="Center"   AutoGenerateColumns="False"  Width="100%" DataKeyNames="Userid"
AllowPaging="True" OnPageIndexChanging="GridView1_PageIndexChanging" ForeColor="#333333">
<Columns>
<asp:TemplateField Visible="false">
<ItemTemplate>
<asp:Label ID="lbuserid" runat="server" Text='<%#Eval("Userid") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>

<asp:TemplateField HeaderText="选择">
<ItemTemplate>
<asp:CheckBox ID="checkD" runat="server" />
</ItemTemplate>
<ItemStyle BorderColor="#507CD1" HorizontalAlign="Center" BorderWidth="1px" />
</asp:TemplateField>

<asp:BoundField  HeaderText="姓名" DataField="name"  ItemStyle-BorderColor="#507CD1" ItemStyle-HorizontalAlign="Center" ItemStyle-BorderWidth="1px"/>

<asp:BoundField  HeaderText="性别"  DataField="sex" ItemStyle-BorderColor="#507CD1" ItemStyle-HorizontalAlign="Center" ItemStyle-BorderWidth="1px"/>

<asp:BoundField  HeaderText="出生年月"  DataField="birthday" ItemStyle-BorderColor="#507CD1" ItemStyle-HorizontalAlign="Center" ItemStyle-BorderWidth="1px"/>

<asp:BoundField  HeaderText="专业年限"  DataField="workyear" ItemStyle-BorderColor="#507CD1" ItemStyle-HorizontalAlign="Center" ItemStyle-BorderWidth="1px"/>

<asp:BoundField  HeaderText="技术等级"  DataField="level" ItemStyle-BorderColor="#507CD1" ItemStyle-HorizontalAlign="Center" ItemStyle-BorderWidth="1px"/>

<asp:BoundField  HeaderText="工作单位"  DataField="company" ItemStyle-BorderColor="#507CD1" ItemStyle-HorizontalAlign="Center" ItemStyle-BorderWidth="1px"/>

<asp:BoundField  HeaderText="电话"  DataField="telephone" ItemStyle-BorderColor="#507CD1" ItemStyle-HorizontalAlign="Center" ItemStyle-BorderWidth="1px"/>

<asp:BoundField  HeaderText="考评员证号" DataField="sno"  ItemStyle-BorderColor="#507CD1" ItemStyle-HorizontalAlign="Center" ItemStyle-BorderWidth="1px"/>

</Columns>
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<PagerTemplate>
<table style="font-size: 12px" width="100%">
<tbody>
<tr>
<td style="text-align: center">
当前第:
<asp:Label ID="LabelCurrentPage" runat="server" Text="<%# ((GridView)Container.NamingContainer).PageIndex + 1 %>"></asp:Label>
页/共:
<asp:Label ID="LabelPageCount" runat="server" Text="<%# ((GridView)Container.NamingContainer).PageCount %>"></asp:Label>
页
<asp:LinkButton ID="LinkButtonFirstPage" runat="server" CommandArgument="First" CommandName="Page"
ForeColor="#666699" Visible='<%#((GridView)Container.NamingContainer).PageIndex != 0 %>'>首页</asp:LinkButton>
<asp:LinkButton ID="LinkButtonPreviousPage" runat="server" CommandArgument="Prev"
ForeColor="#666699" CommandName="Page" Visible='<%# ((GridView)Container.NamingContainer).PageIndex != 0 %>'>上一页</asp:LinkButton>
<asp:LinkButton ID="LinkButtonNextPage" runat="server" CommandArgument="Next" CommandName="Page"
ForeColor="#666699" Visible='<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>'>下一页</asp:LinkButton>
<asp:LinkButton ID="LinkButtonLastPage" runat="server" CommandArgument="Last" CommandName="Page"
ForeColor="#666699" Visible='<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>'>尾页</asp:LinkButton>
转到第
<asp:TextBox ID="txtNewPageIndex" runat="server" Width="20px" Text='<%# ((GridView)Container.Parent.Parent).PageIndex + 1 %>' />页
<asp:LinkButton ID="btnGo" runat="server" CausesValidation="False" CommandArgument="-1"
ForeColor="#666699" CommandName="Page" Text="GO" />
</td>
</tr>
</tbody>
</table>
</PagerTemplate>
</asp:GridView>