C#日记2--Gridview

最新推荐文章于 2025-10-20 14:53:37 发布

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#c# #sorting #textbox

本文介绍了 ASP.NET 中 GridView 控件的基本操作，包括分页、排序及编辑行等功能的实现方式。通过实例代码展示了如何响应 GridView 的 PageIndexChanging、Sorting 和 RowEditing 等事件。

//分页
protected void gvLogs_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        if (e.NewPageIndex > gvLogs.PageCount)
        { gvLogs.PageIndex = gvLogs.PageCount; }
        else
        { gvLogs.PageIndex = e.NewPageIndex; }

        GvBindData = (DataTable)ViewState["dt"];
    }
//排序
    protected void gvLogs_Sorting(object sender, GridViewSortEventArgs e)
    {
        DataTable dt = (DataTable)ViewState["dt"];
        DataView dv = dt.DefaultView;
        if (sortdirec == 0)
        {
            dv.Sort = e.SortExpression.ToString() + " DESC";
            sortdirec = 1;
        }
        else
        {
            dv.Sort = e.SortExpression.ToString() + " ASC";
            sortdirec = 0;
        }
        DataTable dt1 = dv.ToTable();
        ViewState["dt"] = dt1;
        gvLogs.DataSource = dt1;
        gvLogs.DataBind();
    }

//编辑行
   protected void GridViewDepart_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GVDepartment.EditIndex = e.NewEditIndex;   
        _initializeDataBind();    
    }   

    protected void GridViewDepart_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        string departId = this.GVDepartment.Rows[e.RowIndex].Cells[0].Text;
        string departName = ((TextBox)this.GVDepartment.Rows[e.RowIndex].Cells[1].Controls[0]).Text.Trim();
        _presenter.ModifyDepartment(departId, departName);
        GVDepartment.EditIndex = -1;
        _initializeDataBind();
    }

    protected void GridViewDepart_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GVDepartment.EditIndex = -1;
        _initializeDataBind();
    }