Web Forms :: Cannot Get Controls To Show In The Code-behind Page?
Mar 2, 2011
I cannot get my controls to show in the code-behind page. There are several errors showing that they are not defined...but when I run the project, everything is fine.I just have no intellisense and have to write all of my events out.
Protected Sub GridView2_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) If GridView2.Rows.Count > 0 Then Button1.Visible = True [code]...
I SIMPLY want to show a line of text on the page: "This zip code is not in our database..." in addition to the "Else" statement of "Button1.Visible = False"
I'm doing chart running in application using C# VS2010 to make my Chart Xaxis move.when i place my code and run it, it show nothing. so i created another program using vb.net using the same code as C# yet my vb.net code allow me to make my Chart Xaxis moving.moving mean from 1pm to 1.10pm and so on.which mean my minimum of the chart and maximum will keep moving.
I want to show code in asp.net page , how to show code snippet that it will look in same colors as it looks in visual studio , best examlple i can give is this stackoverflow.com itself we can put code fragment in our question which looks well colored giving better user exprience i have just no clue ? also how to store code snippets when user enters them ?
I am creating a gridview that inherits from a webpart. Code runs with out the error but just shows a blank page. I am looking for an example of the page directive, register and user control tags. I am not sure what other steps I need to take to show the gridview on the aspx page. Here is the code:
My goal is to load a row details from db to a webform and let the user update it's value .
The user searches an id (i have a stored procedure for that), how i show that data from the row nicely in the web page through the dal layer. After the data is shown on the page the user need to update a cell in the row and send it.(the part of updating is not the problem).
in other questions how should the dal method should look and how i integrate it's result in the presentation layer (the aspx webform).
Is there a way to show/hide (visible = true/false) a textbox and/or dropdownlist at PageLoad (or other Page cycle) from codebehind (I would like to check for some permission regarding current user and show/hide some controls from aspx page) ?
I need to have a GridView show up at some precise place on a page. I tried to do this by defining the GridView into a cell of a table. It did not work ... the GridView populates OK, however it shows up under my table.
Is there any way I can make this GridView show up at the right of my table and span the 4 or 5 rows I have in this table?
I have a database that has names and months of birth. I would like to have a Choose Month: with a drop down menu to select the month of your choice, then have the results show in a gridview at the bottom of the page. I thought this would be fairly simple but my grid doesn't show anything.
Im using Visual Web Developer 2010 , ASP.NET and VB
Im using the "ASPNETDB.MDF" database for membership and others ,
1-- i created a gridview in my masterpage 2-- Connected to to " ASPNETDB.MDF" and "asp_Users Table" 3 -- Selected all 4-- My Select the Field "UserName"
Now im trying to get the On-line Users .
Im having a problem , becouse i can't see it when i debug the page, i changed the font , background color , i havent got any erros , what i need to do ?
A few questions regarding detailsview and gridview:
1) when page load, how can I default the detailsview to show the first record from the gridview? SelectedIndex does not have any effect to my detailsview.
[Code]....
2) how can I select a record in the gridview if my table has 2 key fields using below syntax?
I have web form in c# asp.net. I have an textbox where the user can enter some part number. When he click on the search button I would like to do some validation of the search text. It is not possible to use the following charachters (- _ / . spaces). When the custom validation found one of these characters I would like to show some error message (It is not possible to use one of these special characters: -, _, /, , . and spaces.). And than I would like to remove the special characters from the search text and execute a method to search.Can I do it with a custom validation like:
<asp:textbox id="TextBox1" runat="server"></asp:textbox><asp:CustomValidator id="CustomValidator1" runat="server" OnServerValidate="TextValidate" ControlToValidate="TextBox1" ErrorMessage="It is not possible to use one of these special characters: -, _, /, , . and spaces."></asp:CustomValidator> protected void TextValidate(object source, ServerValidateEventArgs args){ args.IsValid = (args.Value.Contains(""); string newSearchValue = // remove the special characters -, _, /, , . and spaces. // Run the search method without the special character, but show a error message search(newSearchValue);}
I created a sitemap with a treeview navigation in my aspx site. I am hoping someone can show me the code to put in a Masterpage so that when I expand a child node, all other nodes collapse, and when I expand another node, the previous expanded node collapses.
I have an example here of what I am trying to accomplish:
I want to show video in my page but i don't know how to do it? i want to save embed code of video from you tube in my access DB , and show the video on btn_click.
Is there any way to access code behind for controls in content pages??
Actually i've a content page and i've added some controls(say button) to it. Now, if i want to write some code on button_click , how do i do it? because i'm not able to get to the code behind for these controls. I can only see Page_Load in the code behind aspx.cs page
depending on the No. of the photos the code will be duplicated in the loop
Then I will display the result of the loop in label or in a textarea to let the user copy it any where
The problem is that while compiling my code it considers the HTML code as a part of the behind file and gives errors on the single quote, the double quote and on the parentheses
I am looking for a way to display an iframe code part in my website. Also, I am looking for a component to make it easy to copy/paste this iframe code part.
How to I reference say a text box from my code back file? I am having issues with trying to execute an sql query from the click of a button and then place the result into that text box...
I have an Outer gridview (called grdvOUTERGRIDVIEW) and an Inner Gridview (called grdvOUTERGRIDVIEW) and I am able to see and use the outer gridview in my codep-behind vb page however when I try to handle an event for the Inner gridview then I get the warning: "handles clause requires a withevents variable defined in the containing type or one of its base types".
After creating the inner gridview I closed the page out and re-opened it however still getting that error and not able to create the grdvINNERGRIDVIEW.RowDataBound event function like I am trying to do.