108 lines
3.2 KiB
C#
108 lines
3.2 KiB
C#
namespace Web.Controls
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{
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using System;
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using System.Globalization;
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using System.Web.UI.WebControls;
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/// <summary>
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///
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/// </summary>
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public partial class GridNavgator : System.Web.UI.UserControl
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{
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/// <summary>
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/// 页面GRIDVIEW
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/// </summary>
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public GridView GridView
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{
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get;
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set;
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}
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/// <summary>
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/// GRIDVIEWID
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/// </summary>
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public string GridViewId
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{
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get
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{
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return ViewState["GridViewId"] as string;
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}
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set
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{
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ViewState["GridViewId"] = value;
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}
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}
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/// <summary>
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/// PAGELOAD
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/// </summary>
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/// <param name="sender">SENDER</param>
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/// <param name="e">E</param>
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protected void Page_Load(object sender, System.EventArgs e)
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{
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this.PreRender += new System.EventHandler(this.GridNavagator_PreRender);
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}
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/// <summary>
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/// PRERENDER事件中主要是设置翻页相关的信息***
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/// </summary>
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/// <param name="sender">SENDER</param>
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/// <param name="e">E</param>
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protected void GridNavagator_PreRender(object sender, System.EventArgs e)
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{
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if (this.GridViewId == null)
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{
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this.GridViewId = this.GridView.ID;
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}
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if (this.GridView == null)
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{
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this.GridView = this.Page.FindControl(this.GridViewId) as GridView;
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}
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// 有可能是从母版页（default.Master）中调用此控件：
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if (this.GridView == null)
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{
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this.GridView = this.Page.Master.FindControl("ContentPlaceHolder1").FindControl(this.GridViewId) as GridView;
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}
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this.Label3.Text = this.GridView.PageCount.ToString(CultureInfo.InvariantCulture);
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this.Label2.Text = (this.GridView.PageIndex + 1).ToString(CultureInfo.InvariantCulture);
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this.Label1.Text = this.GridView.PageSize.ToString(CultureInfo.InvariantCulture);
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this.LinkButton3.Enabled = !(this.GridView.PageIndex + 1 == this.GridView.PageCount);
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this.LinkButton4.Enabled = !(this.GridView.PageIndex + 1 == this.GridView.PageCount);
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this.LinkButton1.Enabled = !(this.GridView.PageIndex == 0);
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this.LinkButton2.Enabled = !(this.GridView.PageIndex == 0);
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}
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/// <summary>
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/// 跳转到某页
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/// </summary>
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/// <param name="sender">SENDER</param>
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/// <param name="e">E</param>
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protected void Button1_Click(object sender, EventArgs e)
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{
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int i = 1;
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if (Int32.TryParse(this.TextBox1.Text, out i))
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{
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if (i <= 0)
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{
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i = 1;
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}
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if (i > Int32.Parse(this.Label3.Text, CultureInfo.InvariantCulture))
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{
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i = Int32.Parse(this.Label3.Text, CultureInfo.InvariantCulture);
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}
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}
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this.Button1.CommandArgument = i.ToString(CultureInfo.InvariantCulture);
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}
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}
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} |