Asp.net 动态生成页面中的内容代码,Asp.Net代码库,德仔网

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【Asp.Net】 Asp.net 动态生成页面中的内容
作者:Dezai.CN / 发布于2011/6/23/ 550
<div>
<span style="font-size: 12pt">1、在页面中指定地方增加PlaceHolder</span>
<span style="font-size: 12pt">2、在PlaceHolder中增加控件。</span>
注：生成控件的代码需放在Page_Load中 ，且不能加IsPostBack判断。否则找到不控件。
示例代码： 

<span style="color: #0000ff">string</span><span style="color: #000000"> sSQl </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #800000">""</span><span style="color: #000000">;
sSQl </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #800000">@"</span><span style="color: #800000">select sfcId,sfcDeptID,sfcTableName,sfcTabletitle 
from hp_satisfactioncreate ssc</span><span style="color: #800000">"</span><span style="color: #000000">;
sSQl </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">string</span><span style="color: #000000">.Format(sSQl, Resources.Resource.SysSatisfactionDept);
DataView dvData </span><span style="color: #000000">=</span><span style="color: #000000"> TDAIClient.BusinessDB.GetDataView(sSQl);
</span><span style="color: #0000ff">if</span><span style="color: #000000"> (dvData </span><span style="color: #000000">!=</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">)
{
</span><span style="color: #008000">//</span><span style="color: #008000">增加回车
</span><span style="color: #008000">//</span><span style="color: #008000">LiteralControl lcVal = new LiteralControl("<br/>");
</span><span style="color: #008000">//</span><span style="color: #008000">增加空格
</span><span style="color: #008000">//</span><span style="color: #008000">LiteralControl lcSpace = new LiteralControl(@"&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;");</span><span style="color: #008000">
</span><span style="color: #000000">
</span><span style="color: #0000ff">if</span><span style="color: #000000"> (dvData.Count </span><span style="color: #000000">></span><span style="color: #000000"> </span><span style="color: #800080">0</span><span style="color: #000000">)
{
</span><span style="color: #008000">/*</span><span style="color: #008000">
* 此处生成一个两列的表
</span><span style="color: #008000">*/</span><span style="color: #000000">

</span><span style="color: #008000">//</span><span style="color: #008000">定义表</span><span style="color: #008000">
</span><span style="color: #000000">HtmlTable htTab </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> HtmlTable();
htTab.Style.Add(HtmlTextWriterStyle.Width, </span><span style="color: #800000">"</span><span style="color: #800000">100%</span><span style="color: #800000">"</span><span style="color: #000000">);
</span><span style="color: #008000">//</span><span style="color: #008000">定义表中的行</span><span style="color: #008000">
</span><span style="color: #000000">HtmlTableRow htrTr </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> HtmlTableRow();

</span><span style="color: #0000ff">for</span><span style="color: #000000"> (</span><span style="color: #0000ff">int</span><span style="color: #000000"> iRow </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #800080">0</span><span style="color: #000000">; iRow </span><span style="color: #000000"><</span><span style="color: #000000"> dvData.Count; iRow</span><span style="color: #000000">++</span><span style="color: #000000">)
{ 
</span><span style="color: #008000">//</span><span style="color: #008000">定义行中的例</span><span style="color: #008000">
</span><span style="color: #000000">HtmlTableCell htcTd </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> HtmlTableCell();
htcTd.Style.Add(HtmlTextWriterStyle.TextAlign, </span><span style="color: #800000">"</span><span style="color: #800000">center</span><span style="color: #800000">"</span><span style="color: #000000">);
htcTd.Style.Add(HtmlTextWriterStyle.Color, </span><span style="color: #800000">"</span><span style="color: #800000">blue</span><span style="color: #800000">"</span><span style="color: #000000">);

</span><span style="color: #008000">//</span><span style="color: #008000">定义LinkButton控件</span><span style="color: #008000">
</span><span style="color: #000000">LinkButton lbn </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> LinkButton();
lbn.Text </span><span style="color: #000000">=</span><span style="color: #000000"> dvData[iRow][</span><span style="color: #800000">"</span><span style="color: #800000">sfcTabletitle</span><span style="color: #800000">"</span><span style="color: #000000">].ToString();
lbn.ToolTip </span><span style="color: #000000">=</span><span style="color: #000000"> dvData[iRow][</span><span style="color: #800000">"</span><span style="color: #800000">sfcId</span><span style="color: #800000">"</span><span style="color: #000000">].ToString();
</span><span style="color: #0000ff">string</span><span style="color: #000000"> sUrl </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #800000">"</span><span style="color: #800000">SysSatisfactionDept.aspx?strID={0}</span><span style="color: #800000">"</span><span style="color: #000000">;
sUrl </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">string</span><span style="color: #000000">.Format(sUrl, dvData[iRow][</span><span style="color: #800000">"</span><span style="color: #800000">sfcId</span><span style="color: #800000">"</span><span style="color: #000000">].ToString());
lbn.PostBackUrl </span><span style="color: #000000">=</span><span style="color: #000000"> sUrl;

</span><span style="color: #008000">//</span><span style="color: #008000">增加控件</span><span style="color: #008000">
</span><span style="color: #000000">htcTd.Controls.Add(lbn);
htrTr.Cells.Add(htcTd);
htTab.Rows.Add(htrTr);

</span><span style="color: #0000ff">if</span><span style="color: #000000"> (iRow </span><span style="color: #000000">%</span><span style="color: #000000"> </span><span style="color: #800080">2</span><span style="color: #000000"> </span><span style="color: #000000">==</span><span style="color: #000000"> </span><span style="color: #800080">0</span><span style="color: #000000">)
{
htrTr </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> HtmlTableRow();
}

}
phControl.Controls.Add(htTab);
}
}</span>
</div>
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