GridView事件大全

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using IOIOT.DataControl;

public partial class Admin_LinksOperation : System.Web.UI.Page

{

DCAdmin dcadmin=new DCAdmin();

DCPublic dcpub=new DCPublic();

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

GVBind();

}

}

//绑定

private void GVBind()

{

DataTable dt = dcpub.SelectAllTable("Links", "", "", "CreateDate");

GridView1.DataSource = dt.DefaultView;

GridView1.DataBind();

}

//分页,需要设置AllowPaging="true"

protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)

{

GridView1.PageIndex = e.NewPageIndex;

GVBind();

}

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

{

GridView1.EditIndex = e.NewEditIndex;

GVBind();

}

//取ID值需要设置DataKeyNames="LinkID"

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

{

int LID = Convert.ToInt32(GridView1.DataKeys[e.RowIndex].Value);

string LinkText = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("Elinktext")).Text;

string LinkIMG = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("Elinkimg")).Text;

string LinkURL = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("Elinkurl")).Text;

try

{

dcadmin.Table_UPDATE("Links","LinkText='" + LinkText + "',LinkImg='" + LinkIMG + "',Address='" + LinkURL + "'", "LinkID=" + LID);

PublichClass.MsgBox("更新成功", this.Page);

}

catch(Exception ex)

{

errmessage.Text="更新失败"+ex.Message;

}

GridView1.EditIndex = -1;

GVBind();

}

protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

{

GridView1.EditIndex = -1;

GVBind();

}

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

{

int LID = Convert.ToInt32(GridView1.DataKeys[e.RowIndex].Value);

try

{

dcadmin.Table_DELETE("Links", "LinkID=" + LID);

errmessage.Text = "删除成功";

PublichClass.MsgBox("删除成功", this.Page);

GVBind();

}

catch (Exception ex)

{

errmessage.Text = "删除失败" + ex.Message;

}

}

//排序,需要设置AllowSorting="true",同时在项里需要设置 SortExpression="LinkID"

protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)

{

if ((string)ViewState["Sort"] != e.SortExpression)

{

ViewState["Sort"] = e.SortExpression;

}

else

{

ViewState["Sort"] = e.SortExpression + " " + "DESC";

}

DataTable dt = dcpub.SelectAllTable("Links", "", "", "CreateDate");

dt.DefaultView.Sort = ViewState["Sort"].ToString();

GridView1.DataSource = dt.DefaultView;

GridView1.DataBind();

}

//全选

protected void AllLinkSelect_Click(object sender, EventArgs e)

{

CheckBox chkEbox;

if (AllLinkSelect.Text == "全选")

{

foreach (GridViewRow gvrow in GridView1.Rows)

{

chkEbox = (CheckBox)gvrow.FindControl("chbk");

chkEbox.Checked = true;

}

AllLinkSelect.Text = "取消";

}

else

{

foreach (GridViewRow gvrow in GridView1.Rows)

{

chkEbox = (CheckBox)gvrow.FindControl("chbk");

chkEbox.Checked = false;

}

AllLinkSelect.Text = "全选";

}

}

//删除选择项

protected void LinkDel_Click(object sender, EventArgs e)

{

//删除其中选择项

CheckBox chkbox;

int LID;

string DelStr = "";

#region

try

{

foreach (GridViewRow gridview in GridView1.Rows)

{

chkbox = (CheckBox)gridview.FindControl("chbk");

if (chkbox.Checked == true)

{

LID = Convert.ToInt32(((HiddenField)gridview.FindControl("hfd_linkid")).Value);

DelStr += "LinkID=" + LID + " or ";

//dcadmin.Table_DELETE("News", "NewsID=" + NID);

}

}

if (DelStr.ToString().Trim().Length == 0)

{

errmessage.Text = "没有选择任何项";

PublichClass.MsgBox("没有选择任何项", this.Page);

}

else

{

DelStr = DelStr.Substring(0, DelStr.LastIndexOf("or"));

//删除选中的数据项

dcadmin.Table_DELETE("Links", DelStr);

//errmessage.Text = DelStr;

errmessage.Text = "选择项删除成功！";

PublichClass.MsgBox("选择项删除成功！", this.Page);

GVBind();

}

}

catch (Exception ex)

{

errmessage.Text = "出错了！" + ex.Message;

}

AllLinkSelect.Text = "全选";

#endregion

}

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)

{

int TTID;

if (e.CommandName.ToString() == "topstep")

{

//向上移,Sort+1

if (e.CommandArgument != null && e.CommandArgument.ToString() != "")

{

//errmessage.Text = e.CommandArgument.ToString();

TTID = Convert.ToInt32(GridView1.DataKeys[Convert.ToInt32(e.CommandArgument)].Value);

int NowSort = Convert.ToInt32((dcpub.SelectAllTable("Links", "LinkID=" + TTID, "Sort", "")).Rows[0]["Sort"]);

int UpSort = NowSort + 1;

dcadmin.Table_UPDATE("Links", "Sort=" + UpSort, "LinkID=" + TTID);

DataTable dt = dcpub.SelectAllTable("Links", "", "", "Sort desc");

GridView1.DataSource = dt.DefaultView;

GridView1.DataBind();

}

else

//errmessage.Text = "没有参数";

errmessage.Text = "没有参数";

}

if (e.CommandName.ToString() == "bottomstep")

{

//向下移,Sort-1

errmessage.Text = "22";

}

}

//RowCommand事件需要添加CommandArgument

protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)

{

LinkButton totop;

LinkButton tobottom;

if (e.Row.RowType == DataControlRowType.DataRow)

{

totop = (LinkButton)e.Row.FindControl("totop");

tobottom = (LinkButton)e.Row.FindControl("tobottom");

if (totop != null)

{

if (totop.CommandName == "topstep")

totop.CommandArgument = e.Row.RowIndex.ToString();

if (tobottom.CommandName == "bottomstep")

tobottom.CommandArgument = e.Row.RowIndex.ToString();

}

}

}

}