What do you mean the layout is changed? That is a different question from your title, which is about focus being lost.
You have only shown us a snippet of code. It appears you are using a Multiview control, and we have no idea what other views you have, or what code you have wired up to transition between views.
I can't reproduce your error , please provide your code behind event and explain more . General we can set the ActioViewIndex which is used to get an Index of your View. Please try to use :
MultiView1.ActiveViewIndex = YourIndex;
For exmaple , your current view is in the second one of MultiView , then set ActiveViewIndex to 1.
Best Regards,
Nan Yu
MSDN Community Support
Please remember to "Mark as Answer" the responses that resolved your issue.
Use the SetActiveView method in your dropdown function. Since I don't know the id of your Multiview (you aren't showing all your markup/code), I can't tell you exactly what to use, but it will be
Member
23 Points
41 Posts
Why fired OnSelectedIndexChanged event, it is lost focus?
Jun 13, 2018 02:30 AM|fsze88|LINK
Hi,
I want to solve, after OnSelectedIndexChanged DDLoEonChange fired, the layout is changed?
<asp:View ID="LoEAdmin" runat="server">
<form id="LoEAdminForm" >
<table>
<tr>
<td>LoEAdminForm</td>
<td colspan="2">
<asp:DropDownList id="DDLoESelect" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DDLoEonChange" ></asp:DropDownList>
<select id="LoESelect" name="LoESelect" runat="server" >
</select>
</td>
</tr>
<tr>
<td>Description : </td><td><input id="LoEDescription" type="text" name="LoEDescription" runat="server" /></td>
<td><asp:RequiredFieldValidator runat="server" ID="rLoEDescription" ControlToValidate="LoEDescription" ErrorMessage="LoEDescription file is empty"></asp:RequiredFieldValidator></td>
</tr>
<tr>
<td>Remarks : </td><td><input id="LoERemarks" type="text" name="LoERemarks" runat="server" /></td><td><asp:RequiredFieldValidator runat="server" ID="rLoERemarks" ControlToValidate="LoERemarks" ErrorMessage="LoERemarks file is empty"></asp:RequiredFieldValidator></td>
</tr>
<tr>
<td>Clean Version : </td><td><asp:FileUpload ID="LoEClean_Version" runat="server" /></td><td><asp:RequiredFieldValidator runat="server" ID="rLoEClean_Version" ControlToValidate="LoEClean_Version" ErrorMessage="LoEClean_Version file is empty"></asp:RequiredFieldValidator></td>
</tr>
<tr><td>Track Change : </td><td><asp:FileUpload ID="LoETrack_Change" runat="server" /></td><td><asp:RequiredFieldValidator runat="server" ID="rLoETrack_Change" ControlToValidate="LoETrack_Change" ErrorMessage="LoETrack_Change file is empty"></asp:RequiredFieldValidator></td>
</tr>
<tr><td colspan="3"><asp:Button ID="btnLoEUpload" runat="server" Text="Upload" OnClick="UploadLoEAction" /></td></tr>
</table>
</form>
</asp:View>
Thanks
Francis SZE
Contributor
4531 Points
1664 Posts
Re: Why fired OnSelectedIndexChanged event, it is lost focus?
Jun 13, 2018 05:17 AM|KathyW|LINK
What do you mean the layout is changed? That is a different question from your title, which is about focus being lost.
You have only shown us a snippet of code. It appears you are using a Multiview control, and we have no idea what other views you have, or what code you have wired up to transition between views.
Member
23 Points
41 Posts
Re: Why fired OnSelectedIndexChanged event, it is lost focus?
Jun 13, 2018 06:14 AM|fsze88|LINK
on DroptDownList after SelectedIndexChanged event fired and call void DDLoEonChange
<asp:DropDownList id="DDLoESelect" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DDLoEonChange" ></asp:DropDownList>
the web page become blank
Contributor
2153 Points
910 Posts
Re: Why fired OnSelectedIndexChanged event, it is lost focus?
Jun 13, 2018 06:49 AM|jimmy69|LINK
Hello all,
Ok course it's a post back because the dropdownlist has autpostback true => when you change a value inside the ENTIRE page is REFRESH ...
what do you want to do exactly ? if you don't want to refresh the entire page :
tell us what do you need exactly ?
Member
23 Points
41 Posts
Re: Why fired OnSelectedIndexChanged event, it is lost focus?
Jun 13, 2018 07:06 AM|fsze88|LINK
a way to go back the view after run DDLoEonChange function?
<asp:View ID="LoEAdmin" runat="server">
<form id="LoEAdminForm" >
<table>
<tr>
<td>LoEAdminForm</td>
<td colspan="2">
<asp:DropDownList id="DDLoESelect" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DDLoEonChange" ></asp:DropDownList>
<select id="LoESelect" name="LoESelect" runat="server" >
</select>
</td>
</tr>
<tr>
<td>Description : </td><td><input id="LoEDescription" type="text" name="LoEDescription" runat="server" /></td>
<td><asp:RequiredFieldValidator runat="server" ID="rLoEDescription" ControlToValidate="LoEDescription" ErrorMessage="LoEDescription file is empty"></asp:RequiredFieldValidator></td>
</tr>
<tr>
<td>Remarks : </td><td><input id="LoERemarks" type="text" name="LoERemarks" runat="server" /></td><td><asp:RequiredFieldValidator runat="server" ID="rLoERemarks" ControlToValidate="LoERemarks" ErrorMessage="LoERemarks file is empty"></asp:RequiredFieldValidator></td>
</tr>
<tr>
<td>Clean Version : </td><td><asp:FileUpload ID="LoEClean_Version" runat="server" /></td><td><asp:RequiredFieldValidator runat="server" ID="rLoEClean_Version" ControlToValidate="LoEClean_Version" ErrorMessage="LoEClean_Version file is empty"></asp:RequiredFieldValidator></td>
</tr>
<tr><td>Track Change : </td><td><asp:FileUpload ID="LoETrack_Change" runat="server" /></td><td><asp:RequiredFieldValidator runat="server" ID="rLoETrack_Change" ControlToValidate="LoETrack_Change" ErrorMessage="LoETrack_Change file is empty"></asp:RequiredFieldValidator></td>
</tr>
<tr><td colspan="3"><asp:Button ID="btnLoEUpload" runat="server" Text="Upload" OnClick="UploadLoEAction" /></td></tr>
</table>
</form>
</asp:View>
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17825 Points
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Microsoft
Re: Why fired OnSelectedIndexChanged event, it is lost focus?
Jun 13, 2018 07:38 AM|Nan Yu|LINK
Hi fsze88,
I can't reproduce your error , please provide your code behind event and explain more . General we can set the ActioViewIndex which is used to get an Index of your View. Please try to use :
For exmaple , your current view is in the second one of MultiView , then set ActiveViewIndex to 1.
Best Regards,
Nan Yu
MSDN Community Support
Please remember to "Mark as Answer" the responses that resolved your issue.
Contributor
4531 Points
1664 Posts
Re: Why fired OnSelectedIndexChanged event, it is lost focus?
Jun 13, 2018 07:38 AM|KathyW|LINK
Use the SetActiveView method in your dropdown function. Since I don't know the id of your Multiview (you aren't showing all your markup/code), I can't tell you exactly what to use, but it will be
YourMultiViewID.SetActiveView(LoEAdmin);