#副標= Web Part程式開發系列(3)
#大標=量身訂做您的Web Part
#作者=文／林賢達

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程式1
protected TextBox txtCaption;
protected Button btnOK;
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程式2
protected override void CreateChildControls()
{
base.CreateChildControls ();

txtCaption=new TextBox();
this.Controls.Add(txtCaption);

	btnOK=new Button();
	btnOK.Text=" OK ";
	btnOK.Click+=new EventHandler(
this.btnOK_Click);
	this.Controls.Add(btnOK);
}
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程式3
private void btnOK_Click(object sender,EventArgs e)
{
		if (txtCaption.Text!=string.Empty)
			this.Title=txtCaption.Text;
}
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程式4
protected override void RenderWebPart(
HtmlTextWriter output) {
		this.txtCaption.RenderControl(output);
		this.btnOK.RenderControl(output);
}
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程式5	
	output.AddAttribute(HtmlTextWriterAttribute.Border,
"0");
	output.AddAttribute(HtmlTextWriterAttribute.Width,
"100%");
	output.RenderBeginTag(HtmlTextWriterTag.Table);
	output.RenderBeginTag(HtmlTextWriterTag.Tr);
	output.RenderBeginTag(HtmlTextWriterTag.Td);
	this.txtCaption.RenderControl(output);
	output.RenderEndTag();
	output.AddAttribute(HtmlTextWriterAttribute.Align,
"right");
	output.RenderBeginTag(HtmlTextWriterTag.Td);
	this.btnOK.RenderControl(output);
	output.RenderEndTag();
output.RenderEndTag();
output.RenderEndTag();
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程式6
function SayHello(){
		window.alert('Hello World.');
}
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程式7
public class WebPart1 : WebPart{
private const string SCRIPTFILE = "func.js";
	  private const string SCRIPTKEY = "Hello";
	  private const string SCRIPT = 
	  @"<script language=""{0}"" src=""{1}{2}"">"+
</script>";
}
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程式8
public WebPart1(){
		this.PreRender += new EventHandler(
WPClientScript_PreRender);
}
private void WPClientScript_PreRender(object sender , 
System.EventArgs e ){   
		RegisterCommonScript();
}
protected void RegisterCommonScript() {      
	  string location = null;
if (!Page.IsClientScriptBlockRegistered(
SCRIPTKEY)) {
	    location = this.ClassResourcePath + "/";
		  string includeScript = 
		String.Format(SCRIPT, "javascript", location,
		  SCRIPTFILE);
		Page.RegisterClientScriptBlock(SCRIPTKEY, 
SCRIPT);
		}
}
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程式9
protected override void RenderWebPart(
HtmlTextWriter output)
{
output.Write("<input value=\'Hello\' type=button 
onclick=\"SayHello();\" >");
	}
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程式10
public class ProviderWebPart1 : WebPart, 
ICellProvider{
public event CellProviderInitEventHandler 
CellProviderInit;	
public event CellReadyEventHandler CellReady;
private string myCellName="Cell Data";
}
public override void EnsureInterfaces(){	
	RegisterInterface("ICellProvider_WPQ_",
			"ICellProvider",
WebPart.UnlimitedConnections,
ConnectionRunAt.ServerAndClient,
		this,
"CellProviderInterface_WPQ_",
		"MyCellProvider",
			"Just a simple ICellProvider");
}
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程式11
public override ConnectionRunAt CanRunAt(){
return ConnectionRunAt.ServerAndClient;
}
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程式12
public override void PartCommunicationConnect(
string interfaceName,
WebPart connectedPart,string connectedInterface,
ConnectionRunAt runAt)
{ 
	EnsureChildControls(); 
}
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程式13
public override void PartCommunicationInit(){
CellProviderInitEventArgs 
providerInitArgs = new CellProviderInitEventArgs();
providerInitArgs.FieldName = myCellName;
CellProviderInit(this, providerInitArgs);
}
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程式14
public override void PartCommunicationMain(){
if (CellReady != null){
CellReadyEventArgs cellReadyArgs = 
new CellReadyEventArgs();
			cellReadyArgs.Cell = txtInput.Text;
	CellReady(this, cellReadyArgs);
}
}
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程式15
public void CellReady(object sender, 
CellReadyEventArgs cellReadyArgs){
if(cellReadyArgs.Cell != null){
lblReceive.Text = cellReadyArgs.Cell.ToString();
}
}
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