Forms Data Controls :: Dropdownlist In Gridview Not Keeping Data Value?
Nov 4, 2010
I've got a gridview which contains a dropdownlist. I've got it binding to display the correct name, but when I go to update it (and it could be the dropdownlist field or any other the other fields), I get an error stating it can't update the row because
addr_cnt doesn't allow null fields. I've tried just about everything I can find to get it to keep the addr_cnt value, but nothing seems to be working. My code is below:
<asp:GridView id="gvLeader" runat="server" AutoGenerateColumns="False" datakeynames="ldr_id" DataSourceID="dsLeaders" GridLines="Vertical">
<Columns>
[code]....
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Jul 29, 2010
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Mar 29, 2010
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Sep 14, 2010
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Dec 30, 2010
I have a small problem with drop down list. I have a aspx page which shows the information of a customer and there is an Edit button, which will take the customer to the edit information page. On the edit information page, I have drop down lists and I want the selected value in the drop down list to have the current value of the current customer on Page Load event.
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Dec 2, 2010
I have a problem with my dropdownlist on edit he doesn't want to add any of his parameters to the update. I tried controlparameter and normall parameter both didn't work The folowing I have: Dropdownlist with Datasource: I Have a gridview with templatefields: I have the following asp.net code:
[Code]....
I have the following Business Layer where it connects to:
[Code]....
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May 24, 2010
I have data coming from two tables with a foreign key relationship - one User table containing users of the web application, and one Page table containing details about pages visited by each user.I would like to be able to view these data in a gridview or the like on a page. It's easy enough to just show the User table data like so (I'm using the Entity Framework and LINQ):
[Code]....
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Dec 1, 2010
update database using data from dropdownlist on gridview C#
<asp:GridView ID="GridView" runat="server" AutoGenerateColumns="False"
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Dec 30, 2010
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[Code]....
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I've got a GridView populated via a SqlDataSource whose Select command is controlled by a DropDownList. This is all working nicely:
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[Code].... C#
When I click Select link button , then I click Edit link button . They have errors : Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index" I don't know what error?. How to fix it
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Apr 6, 2010
This would be a simple one for me if I was binding this dynamically. I don't think it's necessary to have a code behind for only 4 or so values. Anyways here is my ddl.
[Code]....
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Feb 14, 2011
I've many input elements one of which is, a radio button group with Autopostback set to true. After selecting one item from the radio button, the drop down list below fetches values from database and is refreshed. I choose some value in the dropdown list and submit the form. I've many server side validation controls. When I submit the form, if any of the server validation fails, it'll show the error message in the form. But the value I choose in the dropdown list disappears and it shows the first value of the dropdown list.
How to show the selected value in the list after submission of form?
Below is the partial code from my form. When I type anything other than "Hello" is the "Comments" text box, it will show the error message. I know I can use, other validators to check this. But purposely I want to use Customvalidator.
My C# code
[Code]....
My ASP.net code
[Code]....
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Oct 9, 2012
Using dropdown in gridview and bind the values in dropdown then based on dropdown display the value in another column.
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Oct 9, 2010
How to populate dropdownlist in a gridview by selecting another dropdown in same gridview
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Aug 19, 2010
i'm creating a webform with one gridview and three dropdownlist which are outside the gridview.In edit mode of the gridview i want to insert the values form the dropdownlist.what i select in dropdownlist it should be in gridview...i've three columns. so i've created three dropdownlist which are outside..i dont want the dropdown list in the gridview it should be separete .
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Dec 14, 2010
I have a form that will allow users to edit records. One of the fields is just a Y or N selection. I would like to use a dropdownlist to accomplish this. I'm fairly cetain this can be done but I can't find an example anywhere.I can bind the dropdownlist to Y or N but hwo do I set it to the value that is already in the database for the record that will be edited?
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Sep 3, 2010
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Feb 23, 2010
I was used TextBox in the GridView Then I Replace this textBox with Dropdownlist
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[code]....
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Mar 29, 2010
I have a gridview in which I have two drop downs. One is populated with values that are static, so I have a regular sub that does that in the code behind. I tried to add code for databinding the other ddl to a datatable. I cannot get this to work. It just comes up empty. My asp code is fine, and the datatable definately has data in it - just nothing gets populated.
One other thing - the code for the static ddl has worked fine, but when I add this other block (either to the same sub as that, or dow the rowdatabound event) the static one doesn't work either.
[Code]....
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Aug 30, 2010
I need to loop through each row in the Gridview and then get the selected value for each rendered Dropdown. I need each value to calculate totals. So I declared a javascript function which loops through the grid rows on the 'onchange' event of the dropdowns. I can retrieve the text from other columns, but I can't get the dropdown. My code:
[Code]....
The gridview is just plain grid with itemtemplate fields for the dropdown... nothing special. I used an alert to see what I get, but I keep getting an error on the 'window.alert' line which says "'options' is null or not an object". If I use the same code on normal dropdown that's not in a gridview, it works just fine. I've been Googling all morning, but nothing seems to work or I don't get what I'm looking for.
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Apr 27, 2010
I'm trying to generate a dropdownlist in a GridView. However, my dropdownlist seem to be empty and I'm not sure how to fix it. Here's my code for the dropdownlist in my GridView & it's SqlDataSource.
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SqlDataSource for DropDownList:
[Code]....
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Aug 3, 2010
I'm struggling in a point for more than two hours even I search for it but I did not find suitable answer.
I'll summarise the problem:
I've GridView, and in one of its cells there is dropDownList in the EditItemTemplate as follows:
[Code]....
I'd like to access the dropDownList once I click on edit-> Update
I know I have to add the code in GridView_OnRowCommand, but what is the code to do so?
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Oct 15, 2010
I have a gridview that holds 4 columns. in the fourth column there is a DropDownlist that holds three items.
I want my users to select one of the values and when they do the auto post back (which is set to true) should execute a method that updates the database selected row. But do i use the selectedindexchanged of the DDL or the Gridview? My head is totally thrashed so i imagine its really simple and im just over thinking it.
[Code]....
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