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asp.net Datalist控件实现分页功能
摘要:在.aspx页面里的代码复制代码代码如下:[][]第一页上一页下一页最后一页在.aspx.cs页面里复制代码代码如下:protectedvo...

在.aspx页面里的代码

复制代码 代码如下:

<asp:DataList ID="DataList1" runat="server" Width="976px" Height="745px" BorderWidth="2px" CellPadding="2" CellSpacing="2" RepeatColumns="7" RepeatDirection="Vertical" BorderColor="#666666">

<ItemTemplate >

<table >

<tr>

<td >

<a href='<%#"Show.aspx?iname="+Eval("iname")%>'><img src='upimage/<%#DataBinder.Eval(Container.DataItem,"iname") %>' width="120" alt="点击查看大图"/></a>

</td>

</tr>

</table>

</ItemTemplate>

</asp:DataList><asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:S601ConnectionString %>" SelectCommand="SELECT [iname] FROM [Image]" ></asp:SqlDataSource>

<table cellpadding="0" cellspacing="0">

<tr>

<td>

<asp:Label ID="Label7" runat="server" Text="当前页码为:"></asp:Label>

[

<asp:Label ID="labPage" runat="server" Text="1"></asp:Label>

]

<asp:Label ID="Label6" runat="server" Text="总页码为:"></asp:Label>

[

<asp:Label ID="labBackPage" runat="server"></asp:Label>

]<asp:LinkButton ID="lnkbtnOne" runat="server" Font-Underline="False" ForeColor="Red"

OnClick="lnkbtnOne_Click">第一页</asp:LinkButton>

<asp:LinkButton ID="lnkbtnUp" runat="server" Font-Underline="False" ForeColor="Red"

OnClick="lnkbtnUp_Click">上一页</asp:LinkButton>

<asp:LinkButton ID="lnkbtnNext" runat="server" Font-Underline="False" ForeColor="Red"

OnClick="lnkbtnNext_Click">下一页</asp:LinkButton>

<asp:LinkButton ID="lnkbtnBack" runat="server" Font-Underline="False" ForeColor="Red"

OnClick="lnkbtnBack_Click">最后一页</asp:LinkButton></td>

</tr>

</table>

在.aspx.cs页面里

复制代码 代码如下:

protected void Page_Load(object sender, EventArgs e)

{

dlBind();

}

public void dlBind()

{

SqlConnection sqlcon;

string strCon = "Data Source=(local);Database=S601;Uid=sa;Pwd=123456";

int curpage = Convert.ToInt32(this.labPage.Text);

PagedDataSource ps = new PagedDataSource();

sqlcon = new SqlConnection(strCon);

sqlcon.Open();

string sqlstr = "SELECT [iname],iid FROM [Image]";

SqlDataAdapter MyAdapter = new SqlDataAdapter(sqlstr, sqlcon);

DataSet ds = new DataSet();

MyAdapter.Fill(ds, "iid");

ps.DataSource = ds.Tables["iid"].DefaultView;

ps.AllowPaging = true; //是否可以分页

ps.PageSize = 35; //显示的数量

ps.CurrentPageIndex = curpage - 1; //取得当前页的页码

this.lnkbtnUp.Enabled = true;

this.lnkbtnNext.Enabled = true;

this.lnkbtnBack.Enabled = true;

this.lnkbtnOne.Enabled = true;

if (curpage == 1)

{

this.lnkbtnOne.Enabled = false;//不显示第一页按钮

this.lnkbtnUp.Enabled = false;//不显示上一页按钮

}

if (curpage == ps.PageCount)

{

this.lnkbtnNext.Enabled = false;//不显示下一页

this.lnkbtnBack.Enabled = false;//不显示最后一页

}

this.labBackPage.Text = Convert.ToString(ps.PageCount);

this.DataList1.DataSource = ps;

this.DataList1.DataKeyField = "iid";

this.DataList1.DataBind();

sqlcon.Close();

}

protected void lnkbtnOne_Click(object sender, EventArgs e)

{

this.labPage.Text = "1";

this.dlBind();

}

protected void lnkbtnUp_Click(object sender, EventArgs e)

{

this.labPage.Text = Convert.ToString(Convert.ToInt32(this.labPage.Text) - 1);

this.dlBind();

}

protected void lnkbtnNext_Click(object sender, EventArgs e)

{

this.labPage.Text = Convert.ToString(Convert.ToInt32(this.labPage.Text) + 1);

this.dlBind();

}

protected void lnkbtnBack_Click(object sender, EventArgs e)

{

this.labPage.Text = this.labBackPage.Text;

this.dlBind();

}

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