GridView空的处理
1 显示无表头的空纪录
EmptyDataText="没有记录"
2 显示表头的空纪录
DataTable dt = new DataTable();
dt = feibf.GetByPersonIDFollowExamInfo(PersonID); //查询指定人的随访信息记录
DataView dv = SortBindGrid(dt);
if (dt.Rows.Count > 0)
{
FollowExamInfoGridView.DataSource = dv;
FollowExamInfoGridView.DataBind();
}
else
{
//添加新行显示表头
dt.Rows.Add(dt.NewRow());
FollowExamInfoGridView.DataSource = dt;
FollowExamInfoGridView.DataBind();
//处理新行
int columnCount = FollowExamInfoGridView.Rows[0].Cells.Count;
//清除掉该空行的全部单元格
FollowExamInfoGridView.Rows[0].Cells.Clear();
//新建单元格对象
FollowExamInfoGridView.Rows[0].Cells.Add(new TableCell());
//合并单元格
FollowExamInfoGridView.Rows[0].Cells[0].ColumnSpan = columnCount;
//设置单元格提示内容
FollowExamInfoGridView.Rows[0].Cells[0].Style.Value = "text-align:center";
FollowExamInfoGridView.Rows[0].Cells[0].Text = "此人无随访信息";
}
GridView 的导出
EnableEventValidation="false"
#region导出
public override void VerifyRenderingInServerForm(Control control)
{
}
protected void BtnPrint_Click(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;
Response.Charset = "GB2312";
Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");
// 如果设置为GetEncoding("GB2312");导出的文件将会出现乱码!!!
Response.ContentEncoding = System.Text.Encoding.UTF7;
Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
this.AfficheGV.RenderControl(oHtmlTextWriter);
Response.Output.Write(oStringWriter.ToString());
Response.Flush();
Response.End();
}
#endregion
ToolTip GridView详细信息的显示
前台
<script type="text/javascript" >
function Tooltip(cella,cellb)
{
document.getElementById("dc").innerText = "详细信息:"+cellb;
document.getElementById("id").innerText = "ID:"+cella;
x= event.clientX+document.body.scrollLeft;
y=event.clientY+document.body.scrollTop+20;
toolTipLayer.style.display="inline";
toolTipLayer.style.left=x;
toolTipLayer.style.top=y;
}
</script>
<div id="toolTipLayer" style=" position:absolute; display:none;
background-color:Aqua; border-color:Blue; border-style:solid;
border-color:Blue; border-width:1px; " >
<table>
<tr><td>Affiche</td></tr>
<tr><td id ="dc"></td></tr>
<tr><td id ="id"> </td></tr>
</table>
</div>
后台
protected void AfficheGV_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
{
1 e.Row.Attributes.Add("onmouseover", "Tooltip('" +e.Row.Cells[0].Text.ToString()+ "','"+e.Row.Cells[1].Text.ToString()+"')");
2 e.Row.Attributes.Add("onmouseover","javascript:Tooltip('e.Row.Cells[0].Text');");
3 e.Row.Attributes.Add("onmouseover", "Tooltip('e.Row.Cells[0].Text')");
} }
}
#region自带编辑
protected void GVAffiche_RowEditing(object sender, GridViewEditEventArgs e)
{
GVAffiche.EditIndex = e.NewEditIndex;
BindGVAffiche();
}
protected void GVAffiche_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
GVAffiche.EditIndex = -1;
MyAffiche.DelAfficeBF( Convert.ToInt32(GVAffiche.DataKeys[e.RowIndex].Value.ToString()));
BindGVAffiche();
}
protected void GVAffiche_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
int id = Convert.ToInt32(((TextBox)(GVAffiche.Rows[e.RowIndex].Cells[0].Controls[0])).Text.ToString().Trim());
string dc = ((TextBox)(GVAffiche.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim();
MyAffiche.UpdateAfficheBf(id,dc);
GVAffiche.EditIndex = -1;
BindGVAffiche();
}
protected void GVAffiche_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GVAffiche.EditIndex = -1;
BindGVAffiche();
}
#endregion
#region样式的控制
protected void GVAffiche_RowDataBound(object sender, GridViewRowEventArgs e)
{
//首先判断是否是数据行
if (e.Row.RowType == DataControlRowType.DataRow)
{
//当有编辑列时,避免出错,要加的RowState判断
if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
{
((Button)e.Row.Cells[7].FindControl("btnDel")).Attributes.Add("onclick","javascript:return confirm('你确认删除:"" + e.Row.Cells[1].Text + ""')");
//当鼠标停留时更改背景色
e.Row.Attributes.Add("onmouseover", "color=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");
//当鼠标移开时还原背景色
e.Row.Attributes.Add("onmouseout","this.style.backgroundColor=color");
GVAffiche.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");
//GVAffiche.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");
if (e.Row.Cells[1].Text == "444")
{
e.Row.Cells[1].BackColor = System.Drawing.Color.Red;
}
}
}
}
#endregion
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