why my textbox control shows null value even if value is present in textbox at runtime?

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1.73/5 (3 votes)

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I have use AjaxFileUpload control to upload multiple files, but OnUploadComplete event of AjaxFileUpload control textbox value gives me null even if value is present in textbox at runtime?

Do you know is the problem? Can u help me please?

//Code Behind

XML

protected void AjaxFileUpload1_OnUploadComplete(object sender, AjaxFileUploadEventArgs file)
    {
             if(txtalbum.text)//here txtalbum is showing null value.
             {

              }

}

// My Design Page

  <table>
                                <tr>
                                    <td class="style2">
                                        <asp:Label ID="Label1" runat="server" Text="Create Album : "></asp:Label>
                                    </td>
                                    <td>
                                        <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>

                                    </td>
                                </tr>
                                <tr>
                                    <td class="style2">
                                        <asp:Label ID="Label2" runat="server" Text="Upload File :"></asp:Label>
                                    </td>
                                    <th>
                                      <ajaxToolkit:AjaxFileUpload ID="AjaxFileUpload1" ThrobberID="myThrobber" ContextKeys="fred" MaximumNumberOfFiles="50" runat="server" Width="421px" OnUploadComplete="AjaxFileUpload1_OnUploadComplete" OnClientUploadCompleteAll="onClientUploadCompleteAll" OnUploadCompleteAll="AjaxFileUpload1_UploadCompleteAll" OnUploadStart="AjaxFileUpload1_UploadStart" OnClientUploadStart="onClientUploadStart"/>
     <div id="uploadCompleteInfo"></div>
        <br />
        <div id="testuploaded" style="display: none; padding: 4px; border: gray 1px solid;"></div>
            <h4> list of uploaded files:</h4>
            <hr />
            <div id="fileList">
             </div>
                                </th>
                                </tr>
                                </table>

Posted 6-Feb-14 19:57pm

sumit kausalye

Updated 6-Feb-14 23:33pm

v3

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Comments

Sandeep Singh Shekhawat 7-Feb-14 2:01am

Remove update panel from your page where file upload is using.

sumit kausalye 7-Feb-14 5:28am

sir i have not use update panel.

JoCodes 7-Feb-14 2:02am

Whats the code you tried?

njammy 7-Feb-14 6:08am

If it is an ajax call making the upload, then the textbox is client side at that point, so it should be updated via the ajax upload events.
Please post your code behind.

sumit kausalye 8-Feb-14 0:10am

protected void AjaxFileUpload1_OnUploadComplete(object sender, AjaxFileUploadEventArgs file)
{

string name = file.FileName;

if (file.ContentType.Contains("png") || file.ContentType.Contains("PNG") || file.ContentType.Contains("jpg") || file.ContentType.Contains("JPG") || file.ContentType.Contains("jpeg") || file.ContentType.Contains("JPEG") || file.ContentType.Contains("bmp") || file.ContentType.Contains("BMP") || file.ContentType.Contains("gif") || file.ContentType.Contains("GIF"))
{
BindimageTest(name);
}
// Video Extension
// else if (ext == ".wmv" || ext == ".WMV" || ext == ".flv" || ext == ".FLV" || ext == ".avi" || ext == ".AVI" || ext == ".mp4" || ext == ".MP4" || ext == ".MPEG-4" || ext == ".mpeg-4" || ext == ".WMA" || ext == ".wma ")
else if (file.ContentType.Contains("wmv") || file.ContentType.Contains("WMV") || file.ContentType.Contains("flv") || file.ContentType.Contains("FLV") || file.ContentType.Contains("avi") || file.ContentType.Contains("AVI") || file.ContentType.Contains("wma") || file.ContentType.Contains("WMA") || file.ContentType.Contains("mp4") || file.ContentType.Contains(".MP4") || file.ContentType.Contains("MPEG-4") || file.ContentType.Contains("mpeg-4"))
{
BindVideoTest(name);
}
}

BulletVictim 7-Feb-14 7:46am

This is just me thinking out loud but you are referencing txtalbum in you code behind but in the design you use TextBox2

sumit kausalye 8-Feb-14 0:06am

<table>
<tr>
<td class="style2">
<asp:Label ID="Label1" runat="server" Text="Create Album : ">
</td>
<td>
<asp:TextBox ID="TextBox1" runat="server">
</td>
</tr>
<tr>
<td class="style2">
<asp:Label ID="Label2" runat="server" Text="Upload File :">
</td>
<th>
<ajaxToolkit:AjaxFileUpload ID="AjaxFileUpload1" ThrobberID="myThrobber" ContextKeys="fred" MaximumNumberOfFiles="50" runat="server" Width="421px" OnUploadComplete="AjaxFileUpload1_OnUploadComplete" OnClientUploadComplete="uploadComplete" OnClientUploadCompleteAll="onClientUploadCompleteAll" OnUploadCompleteAll="AjaxFileUpload1_UploadCompleteAll" OnUploadStart="AjaxFileUpload1_UploadStart" önClientUploadStart="onClientUploadStart"/>
</th>
</tr>
<tr>
<th colspan="2">
<%-- <asp:Button ID="btnsave" runat="server" Text="SAVE" OnClick="btnsave_Click" />--%>
</th>
</tr>
</table>

sorry i send wrong design earlier sorry for that.. but still it is giving me "".

ZurdoDev 7-Feb-14 9:20am

What do you mean by null? .Text on a textbox is not a nullable string. It will return "" but not null. Perhaps txtalbum is null because as the previous comment states, it isn't there.

sumit kausalye 8-Feb-14 0:06am

<table>
<tr>
<td class="style2">
<asp:Label ID="Label1" runat="server" Text="Create Album : ">
</td>
<td>
<asp:TextBox ID="TextBox1" runat="server">
</td>
</tr>
<tr>
<td class="style2">
<asp:Label ID="Label2" runat="server" Text="Upload File :">
</td>
<th>
<ajaxToolkit:AjaxFileUpload ID="AjaxFileUpload1" ThrobberID="myThrobber" ContextKeys="fred" MaximumNumberOfFiles="50" runat="server" Width="421px" OnUploadComplete="AjaxFileUpload1_OnUploadComplete" OnClientUploadComplete="uploadComplete" OnClientUploadCompleteAll="onClientUploadCompleteAll" OnUploadCompleteAll="AjaxFileUpload1_UploadCompleteAll" OnUploadStart="AjaxFileUpload1_UploadStart" önClientUploadStart="onClientUploadStart"/>
</th>
</tr>
<tr>
<th colspan="2">
<%-- <asp:Button ID="btnsave" runat="server" Text="SAVE" OnClick="btnsave_Click" />--%>
</th>
</tr>
</table>

sorry i send wrong design earlier sorry for that.. but still it is giving me "".

ZurdoDev 8-Feb-14 9:24am

But .Text will not be null. You need to debug this better and be more clear please.

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