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DotNet OnPreRender(EventArgs e) 事件常用的方法

  • 时间:2022-07-07 16:47 编辑: 来源: 阅读:
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摘要:DotNet OnPreRender(EventArgs e) 事件常用的方法
protected override void OnPreRender(EventArgs e) 1) 加入脚本
[u]复制代码[/u] 代码如下:
protected override void OnPreRender(EventArgs e) { base.OnPreRender(e); this.Page.RegisterClientScriptBlock("InsertText", this.RenderScript()); this.Page.RegisterOnSubmitStatement("StorePostBody", "StorePostBody();"); }
2) 设定标题
[u]复制代码[/u] 代码如下:
protected override void OnPreRender(EventArgs e) { if(_mainTitle != null) _mainTitle.Text = ResourceManager.GetString(Title); if(_subTitle != null) _subTitle.Text = ResourceManager.GetString(SubTitle); base.OnPreRender (e); }
3) 设定按钮客户端事件
[u]复制代码[/u] 代码如下:
protected override void OnPreRender(EventArgs e) { Submit.Attributes.Add("onclick", "return SubmitSendToFriend('" + From.ClientID + "', '" + To.ClientID + "');"); }
4) 设定控件的状态
[u]复制代码[/u] 代码如下:
protected override void OnPreRender(System.EventArgs e) { if(replyButton.Visible == false) ((Literal)FindControl("Sep1")).Visible = false; if(threadSubButton.Visible == false) ((Literal)FindControl("Sep3")).Visible = false; if(rateButton.Visible == false) ((Literal)FindControl("Sep2")).Visible = false; base.OnPreRender (e); }
5) 加入脚本块
[u]复制代码[/u] 代码如下:
protected override void OnPreRender(EventArgs e) { base.OnPreRender (e); StringBuilder sb = new StringBuilder(); sb.Append(" "); sb.Append(" function ToggleRateMenu() {"); sb.Append(" rateMenu = document.getElementById('RateMenu');"); sb.Append(" rateButton = document.getElementById('RateButton');"); sb.Append(""); sb.Append(" rateMenu.style.left = getposOffset(rateButton, \"left\");"); sb.Append(" rateMenu.style.top = getposOffset(rateButton, \"top\") + rateButton.offsetHeight;"); sb.Append(""); sb.Append(" if (rateMenu.style.visibility == \"hidden\") {"); sb.Append(" rateMenu.style.visibility = \"visible\";"); sb.Append(" rateMenu.style.display = 'block';"); sb.Append(" } else {"); sb.Append(" rateMenu.style.visibility = \"hidden\";"); sb.Append(" rateMenu.style.display = 'none';"); sb.Append(" }"); sb.Append(" }"); sb.Append(" "); sb.Append(" function getposOffset(what, offsettype){"); sb.Append(" var totaloffset=(offsettype==\"left\")? what.offsetLeft : what.offsetTop;"); sb.Append(" var parentEl=what.offsetParent;"); sb.Append(" while (parentEl!=null){"); sb.Append(" totaloffset=(offsettype==\"left\")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;"); sb.Append(" parentEl=parentEl.offsetParent;"); sb.Append(" }"); sb.Append(" return totaloffset;"); sb.Append("}"); sb.Append(" "); Page.RegisterClientScriptBlock("RatePost",sb.ToString());
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