Create command at runtime

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I must create a series of ImageButton inside a DIV

ASP.NET

<div style="float:left; width:105px">
  <asp:ImageButton ID="ImageButton3" runat="server" ImageAlign="Middle" ImageUrl="~/Immagini/Arredi/thumbnails/File_-09.jpg" Width="100px" OnClick="ImageButton3_Click1"/>A1
</div>

the HtmlGenericControl can create Html tags but not asp. net

System.Web.UI.HtmlControls.HtmlGenericControl dynDiv = new System.Web.UI.HtmlControls.HtmlGenericControl("DIV");
       dynDiv.ID = "dynDivCode";
       dynDiv.Style.Add(HtmlTextWriterStyle.BackgroundColor, "Gray");
       dynDiv.Style.Add(HtmlTextWriterStyle.Height, "20px");
       dynDiv.Style.Add(HtmlTextWriterStyle.Width, "300px");
       dynDiv.InnerHtml = "I was created using Code Behind";
       this.Controls.Add(dynDiv);

there is a way to create ImageButton and Properties ?

What I have tried:

The Div I can create it

System.Web.UI.HtmlControls.HtmlGenericControl dynDiv = new System.Web.UI.HtmlControls.HtmlGenericControl("DIV");

but the ImageButton inside the Div ?

Posted 19-Jan-18 3:10am

Member 13174280

Updated 21-Jan-18 21:54pm

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4 solutions

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F-ES Sitecore · Answer 1 · 2018-01-19T04:43:00

<asp:Panel style="float:left; width:105px" runat="server" ID="myPanel">
    <asp:ImageButton ID="ImageButton3" runat="server" ImageAlign="Middle" ImageUrl="~/Immagini/Arredi/thumbnails/File_-09.jpg" Width="100px" OnClick="ImageButton3_Click"/>A1
</asp:Panel>

protected void Page_Load(object sender, EventArgs e)
{
        ImageButton newButton = new ImageButton();

        newButton.ID = "DynamicImageButton" + i.ToString();
        newButton.ImageAlign = ImageAlign.Middle;
        newButton.ImageUrl = "~/Immagini/Arredi/thumbnails/File_-09.jpg"; // change as needed
        newButton.Width = 100;
        newButton.Click += NewButton_Click;
        newButton.CommandArgument = i.ToString();

        myPanel.Controls.Add(newButton);

        Literal newLiteral = new Literal();

        newLiteral.Text = "Button " + i.ToString();

        myPanel.Controls.Add(newLiteral);
}

private void NewButton_Click(object sender, ImageClickEventArgs e)
{
    ImageButton b = (ImageButton)sender;

    System.Diagnostics.Debug.WriteLine("Button " + b.CommandArgument + " was clicked");
}

Member 13174280 · Answer 2 · 2018-01-21T21:54:00

I Solved using a DataList with ImageButton

<!-- DataList Images -->
        <div style="overflow-x:scroll; overflow-y:no-content; height:280px"
            <asp:UpdatePanel ID="UpdatePanel1" runat="server">
              <ContentTemplate>
                  <!-- RepeatColumns="0" DataList Horizontal -->
                 <asp:DataList ID="DataList1" runat="server" RepeatDirection="Horizontal" RepeatLayout="Table" RepeatColumns="0">
                          
                   <ItemTemplate>
                    <td>                       
                       <asp:ImageButton ID="ImageButton1" runat="server" ImageUrl='<%# Container.DataItem %>' Height="200px" OnClick="ImageButton1_Click" ImageAlign="Middle" EnableTheming="False" CssClass="CCSImageButton"/>
                    </td>
                    </ItemTemplate>
                 </asp:DataList>
              </ContentTemplate>             
            </asp:UpdatePanel>
        </div>

and cs file

C#

protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
    {
         ...... other operation
    }

debasish mishra · Answer 3 · 2018-01-19T03:27:00

Solution 1

Don't just copy and paste.There is a hack that you can do with CSS and it will help you to position image buttons correctly inside div's.

c# - Image button inside div position - Stack Overflow[^]

Posted 19-Jan-18 3:27am

debasish mishra

Member 13174280 · Answer 4 · 2018-01-19T09:51:00

by Solution 2

newButton.Click += NewButton_Click;

by entering a breakpoint on NewButton_Click , the code does not pass

private void NewButton_Click(object sender, ImageClickEventArgs e)
{
    ImageButton b = (ImageButton)sender;

    System.Diagnostics.Debug.WriteLine("Button " + b.CommandArgument + " was clicked");

I need ImageUrl to visulize in another control
ex: ImageFromThumb.ImageUrl = "url"

}

To perform a click on Image operation, I should at least pass ImageUrl

------------- other possibility
I can create

protected override void OnInit(EventArgs e)
    {
        //create a new server control  
        ImageButton image = new ImageButton();
        //we must specify an unique ID of that control   
        image.ID = "image1";

        image.ImageUrl = "~/Immagini/Arredi/thumbnails/File_55Frecce-106.jpg";
        image.Width = 100;
        image.OnClientClick = "ImgShow()";  

        //has no effect
        // image.OnClientClick = "ImgShow(image.ImageUrl)"
        
        //create a new LiteralControl  
        LiteralControl createDiv = new LiteralControl("<div>");
        //add both of them into the page  
        Page.Form.Controls.Add(createDiv);
        Page.Form.Controls.Add(image);
        LiteralControl endDiv = new LiteralControl("</div>");
        Page.Form.Controls.Add(endDiv);
        base.OnInit(e);
    }

and on .aspx file

<script type="text/javascript">
    function ImgShow(src)
    {
        var img = document.createElement("img");
        img.src = src;
        img.width = width;
        img.height = height;
        img.alt = alt;

        // This next line will just add it to the <body> tag
        document.body.appendChild(img);
    }

</script>

the purpose is to have n ImageButton and click on a display on an ImageButton control.

the problem is pass a parameter (ImageUrl) to function ImgShow()

Create command at runtime

4 solutions

Solution 2

Solution 4

Solution 1

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