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Hi All,
I'm tring to create a very simple composite control, consisting of a textbox and a label (and some html to style it..)
I have created it and at first it seemed to work, but now it appears I have missed out something fundamental.
I have a Text property in which I am setting the text property of the child text control and retreiving the same child property.
public string Text
{
get
{
EnsureChildControls();
return childTextBox.Text;
}
set
{
EnsureChildControls();
childTextBox.Text = value;
}
}
This works fine, unless on loading the page containing the control, I assign some text to the Text property. The text I assign appears in the child textbox fine, but when edited and attemped to save, it loses the new child textbox value, and reverts to the Text property as it was set on page load (or any other event that I use to populate it).
I'm guessing it's some kind of viewstate issue? Though this is the first time I have attempted a custom control of any sort and the help I've been looking up has led to me breaking it completely a number of time while trying various solutions.
If anyone has any idea what the problem is, then I'd appreciate your help as I'm running out of time to spend on it and don't want to have to abandon it because of deadlines.
Thanks in advance..
Mark
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Where are you setting the default value for the textbox? In the Load event of your user control? Have you place that inside if(!IsPostBack) block?
50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!
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Hi,
Thanks for the reply. Yes it was in the page load and even though I tried it on other events, I somehow never remembered to remove the onload version of the event, coupled with it not being in a (!Page.IsPostBack) block.
Having done that, it works just fine.
Thanks for pointing out the error, I'd spent so long looking for problems with the control, I didn't even think it could be with my page 
Thanks again
Mark
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Hello friends,
How do I embedding a search engine in ASP.NET applications?
Thanks always.
Tunsten
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You want to search with in your site ?
Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
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i am using an update panel with a gridview and want to loaad and perform all update . delete , select operations throug
update pabel without complete page refresh but i cant fo that
here is what i am doing ,
<asp:scriptmanager id="ScriptManager1" runat="server">
<asp:updatepanel id="UpdatePanel1" runat="server">
<contenttemplate>
<asp:gridview id="GridView1" runat="server"
="" autogeneratecolumns="False" datakeynames="customerid" onrowdeleted="GridView1_RowDeleted" onrowupdated="GridView1_RowUpdated" showfooter="True" onrowcommand="GridView1_RowCommand" backcolor="White" bordercolor="White" borderstyle="Ridge" borderwidth="2px" cellpadding="3" cellspacing="1" allowpaging="True" onrowcancelingedit="GridView1_RowCancelingEdit" onrowdeleting="GridView1_RowDeleting" onrowediting="GridView1_RowEditing" onselectedindexchanged="GridView1_SelectedIndexChanged" width="1070px" horizontalalign="Left" pagesize="5" onpageindexchanging="GridView1_PageIndexChanging">
<rowstyle backcolor="#DEDFDE" forecolor="Black" wrap="True">
<columns>
<asp:templatefield headertext="Customer ID">
<footertemplate>
<asp:button id="btnsave" text="Insert Record" commandname="Add" runat="server">
<asp:textbox id="add_customerid" runat="server">
<itemtemplate>
<asp:label id="lblcustomerid" runat="server" text="<%#Eval("customerid") %>">'
<asp:templatefield headertext="Company Name">
<itemtemplate>
<asp:label id="lblcompanyname" runat="server" text="<%#Eval("companyname") %>">'
<edititemtemplate>
<asp:textbox id="up_txtcompanyname" runat="server" backcolor="green">
<footertemplate>
<asp:textbox id="add_txtcompanyname" runat="server">
<asp:templatefield headertext="Contact Tiltle">
<itemtemplate>
<asp:label id="lblctitle" runat="server" text="<%#Eval("contacttitle") %>">'
<edititemtemplate>
<asp:textbox id="up_contacttitle" runat="server" backcolor="green">
<footertemplate>
<asp:textbox id="add_contacttitle" runat="server">
<asp:templatefield headertext="City ">
<itemtemplate>
<asp:label id="lblcity" runat="server" text="<%#Eval("city") %>">'
<edititemtemplate>
<asp:textbox id="up_city" runat="server" backcolor="green">
<footertemplate>
<asp:textbox id="add_city" runat="server">
<asp:commandfield buttontype="Image" cancelimageurl="~/Cancel.gif"
="" deleteimageurl="~/Delete.gif" editimageurl="~/Edit.gif" showdeletebutton="True" showeditbutton="True" updateimageurl="~/Update.gif" selectimageurl="~/Plus.gif" selecttext="Order Details" showselectbutton="True">
<footerstyle backcolor="#C6C3C6" forecolor="Black">
<pagerstyle backcolor="#C6C3C6" forecolor="Black" horizontalalign="Right">
<selectedrowstyle backcolor="#9471DE" font-bold="True" forecolor="White">
<headerstyle backcolor="#4A3C8C" font-bold="True" forecolor="#E7E7FF">
<editrowstyle wrap="False">
Tauseef A Khan
MCP Dotnet framework 2.0.
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Does it produce any error ? 
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no it does not , but i page is refreshing upon each grid commad operation,
how to make sure update panel is working correctly , i am new to asp.net.
Tauseef A Khan
MCP Dotnet framework 2.0.
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Please checkout the link that I have provided.
Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
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First of all your code is not understand at all. You need to post code with proper formatting.
Tauseef A wrote: <asp:updatepanel id="UpdatePanel1" runat="server">
<asp:gridview id="GridView1" runat="server"
autogeneratecolumns="False" <="" blockquote="">
Where is the ContentTemplate For Update Panel ?
Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
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it seems update panel is not working , because page is refreshing upoen each command operation.
how do i make sure that update panel is working , i am new to asp.net.
asp:ScriptManager ID="ScriptManager1" runat="server">
<asp:updatepanel id="UpdatePanel1" runat="server">
<contenttemplate>
<asp:gridview id="GridView1" runat="server"
="" autogeneratecolumns="False" datakeynames="customerid" onrowdeleted="GridView1_RowDeleted" onrowupdated="GridView1_RowUpdated" showfooter="True" onrowcommand="GridView1_RowCommand" backcolor="White" bordercolor="White" borderstyle="Ridge" borderwidth="2px" cellpadding="3" cellspacing="1" allowpaging="True" onrowcancelingedit="GridView1_RowCancelingEdit" onrowdeleting="GridView1_RowDeleting" onrowediting="GridView1_RowEditing" onselectedindexchanged="GridView1_SelectedIndexChanged" width="1070px" horizontalalign="Left" pagesize="5" onpageindexchanging="GridView1_PageIndexChanging">
<rowstyle backcolor="#DEDFDE" forecolor="Black" wrap="True">
<columns>
<asp:templatefield headertext="Customer ID">
<footertemplate>
<asp:button id="btnsave" text="Insert Record" commandname="Add" runat="server">
<asp:textbox id="add_customerid" runat="server">
<itemtemplate>
<asp:label id="lblcustomerid" runat="server" text="<%#Eval("customerid") %>">'
<asp:templatefield headertext="Company Name">
<itemtemplate>
<asp:label id="lblcompanyname" runat="server" text="<%#Eval("companyname") %>">'
<edititemtemplate>
<asp:textbox id="up_txtcompanyname" runat="server" backcolor="green">
<footertemplate>
<asp:textbox id="add_txtcompanyname" runat="server">
<asp:templatefield headertext="Contact Tiltle">
<itemtemplate>
<asp:label id="lblctitle" runat="server" text="<%#Eval("contacttitle") %>">'
<edititemtemplate>
<asp:textbox id="up_contacttitle" runat="server" backcolor="green">
<footertemplate>
<asp:textbox id="add_contacttitle" runat="server">
<asp:templatefield headertext="City ">
<itemtemplate>
<asp:label id="lblcity" runat="server" text="<%#Eval("city") %>">'
<edititemtemplate>
<asp:textbox id="up_city" runat="server" backcolor="green">
<footertemplate>
<asp:textbox id="add_city" runat="server">
<asp:commandfield buttontype="Image" cancelimageurl="~/Cancel.gif"
="" deleteimageurl="~/Delete.gif" editimageurl="~/Edit.gif" showdeletebutton="True" showeditbutton="True" updateimageurl="~/Update.gif" selectimageurl="~/Plus.gif" selecttext="Order Details" showselectbutton="True">
<footerstyle backcolor="#C6C3C6" forecolor="Black">
<pagerstyle backcolor="#C6C3C6" forecolor="Black" horizontalalign="Right">
<selectedrowstyle backcolor="#9471DE" font-bold="True" forecolor="White">
<headerstyle backcolor="#4A3C8C" font-bold="True" forecolor="#E7E7FF">
<editrowstyle wrap="False">
Tauseef A Khan
MCP Dotnet framework 2.0.
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i have checked this link , even worked with that link example but still it refreshes.
Tauseef A Khan
MCP Dotnet framework 2.0.
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Which Visual Studio version are you using ? is VS 2005 or Vs 2008 ? If VS 2005, please select AJAX Enabled web Site instead of Normal web site. Hope that may resolve your problem.
Thanks !
Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
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Hello all
I have 2 textboxes on my aspx site which I want to validate.
I want to make sure that the second textbox value is higher than the first one.
For example:
The user inputs 40 in the first textbox and 20 in the second.
This will give an error since 20 is less than 40.
But if the user types 40 and 60 it should work.
It should also be numbers only 
Any ideas?
Cheers! 
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What is the issue ? You can easily do it using JavaScript.
Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
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Solved
<asp:CompareValidator ID="CompareValidator1" runat="server"
ErrorMessage="CompareValidator" ControlToValidate="TextBox2" ControlToCompare="TextBox1" Operator="GreaterThan">
</asp:CompareValidator>
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Casper Hansen wrote: Solved
Not Solved..!
He dont want to compare..!
Hewant to chek the value is greater then first..!
LatestArticle :Log4Net
Why Do Some People Forget To Mark as Answer .If It Helps.
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I am trying to download to a file on the client from my database, then confirm with an email, and record sucess / failure in the acoount access log. I generate the data, then do the following:
Response.Buffer = true;
Response.ContentType = "text/plain";
Response.AddHeader("content-disposition", "attachment;filename=" + user.UserName + ".AccountActivity.txt");
Response.BinaryWrite(System.Text.Encoding.ASCII.GetBytes(data.ToString()));
Response.Output.Flush();
And fine, I get the Save As dialog, the file saves.
Problem: If I do just as above, the full HTML for the client page is appended to the file, but the email and log are fine.
If I add Response.End(), the saved file is fine, no extra HTML there, but the email and log don't occur.
Is there a way to end the file transfer without ending the page?
No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.
This message is made of fully recyclable Zeros and Ones
"Rumour has it that if you play Microsoft CDs backwards you will hear Satanic messages.Worse still, is that if you play them forwards they will install Windows"
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If you dont close the response it will keep on adding htmls to the document. If you are only downloading a file, always close the Response.
do the email sending and log before you download if it affects the Response.
Now before you add ContentType, use Response.Clear
and then use your code to download the file. 
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Hi all,
I have created one website and try to add google map.If any one knows how to integrate google map api in my website ,pls help me
Thanks Denny
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I have developed an application in ASP.NET and C#.
Inititially the application was for a single client with 1 user.
Now I wan't to enhance the application, and turn it in to a platform that many merchants can subscribe to.
The use case is as follows:
"A user will login (assumes user was set up). This user will be a member of a merchant (entity that subscribes to my service).
There can be many users to a merchant, each having different roles in a hierarchy. One of the roles would be a merchant administrator.
There will need to be a special user(s) within the system to create new merchants and users. This user with be a System Administrator.
The merchants can have subscribers (past customers and potential customers) for newsletters et al."
I have envisaged having a merchant table in my database. The user table would have a foreign key to the merchant table. Modelling the 1:m relationship.
My knowledge of the membership provider is limited, and therefore is my use case implementable using the Microsoft provider. If not does anyone have an example which they could share.
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