DotNet OnPreRender(EventArgs e) 事件常用的方法
DotNet OnPreRender(EventArgs e) 事件常用的方法
发布时间:2016-12-29 来源:查字典编辑
摘要:protectedoverridevoidOnPreRender(EventArgse)1)加入脚本复制代码代码如下:protectedov...

protected override void OnPreRender(EventArgs e)

1) 加入脚本

复制代码 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

复制代码 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

复制代码 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

复制代码 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

复制代码 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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