我的Sharepoint 2010网页上有两个按钮。一个是(服务器端),另一个不是*。它们的设置类似。这是 开火的那个:
Button btnSave = new Button();
btnSave.Text = "Save";
btnSave.Click += new EventHandler(btnSave_Click);
this.Controls.Add(btnSave);
. . .
private void btnSave_Click(object sender, EventArgs e)
{
LiteralControl message = null; // this breakpoint is hit, sho' nuff
. . . // code elided for brevity
}
...这里是未被调用的那个:
Button btnGeneratePDF = null;
. . .
btnGeneratePDF = new Button();
btnGeneratePDF.Text = "Generate PDF";
btnGeneratePDF.UseSubmitBehavior = true; // trying this after it didn't work without it... (still doesn't work)
btnGeneratePDF.Click += new EventHandler(btnGenPDF_Click);
this.Controls.Add(btnGeneratePDF);
private void btnGenPDF_Click(object sender, EventArgs e)
{
GeneratePDF(listOfListItems); // breakpoint here never reached
}
为什么单击它时会调用btnSave的处理程序,但是btnGeneratePDF的处理程序不是?
我在另一个Button的点击处理程序中创建pdfgen按钮的事实是否与此有关?这是其中的重要部分:
private void btnSave_Click(object sender, EventArgs e)
{
try
{
. . . relatively insignificant code elided for brevity
Button btnGeneratePDF = new Button();
btnGeneratePDF.Text = "Generate PDF";
btnGeneratePDF.UseSubmitBehavior = true; // trying this after it didn't
work without it...still doesn't work; don't know why - configuration of this
button is the same as for btnSave
btnGeneratePDF.Click += new EventHandler(btnGenPDF_Click);
this.Controls.Add(btnGeneratePDF);
. . . relatively insignificant code elided for brevity
只有第一个(btnSave)按钮(而不是相同创建的btnGeneratePDF按钮)被标记为type =“submit”:
<input type="submit" name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl152" value="Save" onclick="javascript:WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions("ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl152", "", true, "", "", false, false))" />
我相信只允许一个提交类型的按钮,但是当我通过将其Enabled属性设置为false时,我尝试将btnSave推开,但这没有做任何事情(好)。
答案 0 :(得分:1)
如果您指定&#34; pdf&#34;的点击事件处理程序“保存”按钮的单击事件内的按钮表示每次按下保存按钮时动态创建PDF按钮并分配其单击事件。只有在那个时候,pdf才能分配它的事件。
答案 1 :(得分:1)
您必须在页面处理中重新创建动态控件。以下是如何执行此操作的示例:
protected void Page_Load(object sender, EventArgs e)
{
Button b = new Button();
b.ID = "one";
b.Text = "one";
b.Click += B_Click;
this.form1.Controls.Add(b);
// this is where the dynamic control is created if id is in postback
if (Request["two"] != null)
{
Button x = new Button();
x.ID = "two";
x.Text = "two";
x.Click += X_Click;
this.form1.Controls.Add(x);
}
}
private void B_Click(object sender, EventArgs e)
{
Button x = new Button();
x.ID = "two";
x.Text = "two";
x.Click += X_Click;
this.form1.Controls.Add(x);
LabelOutput.Text += " ...one";
}
private void X_Click(object sender, EventArgs e)
{
LabelOutput.Text += " ...two";
}
答案 2 :(得分:1)
这就是我开始工作的方式:
0)在顶部声明按钮:
Button btnGeneratePDF = null;
1)在Page_Load()事件中创建和配置它(由Michael Palermo建议)
btnGeneratePDF = new Button();
btnGeneratePDF.Text = "Generate PDF";
btnGeneratePDF.UseSubmitBehavior = true; // I don't know if this is necessary
btnGeneratePDF.Click += new EventHandler(btnGenPDF_Click);
btnGeneratePDF.Visible = false;
this.Controls.Add(btnGeneratePDF);
请注意,首先将
设置为false2)制作&#34;生成PDF&#34;在&#34; btnSave&#34;中可见的按钮点击处理程序:
btnGeneratePDF.Visible = true;
那就是它 - 它现在运作正常。