I am using a gridview that contains an asp:fileupload so that when the user clicks 'edit' they can upload a pdf. I need to validate the size of the file, it needs to be less then a certain size. I tried to use a custom validator, but it never get called when the user updates. How can I validate the file size on edit in the gridview?
View 1 RepliesI am working with VWD Express and Visual Basic. take this into consideration if you are willing to answer my question. I do have the following code for a GridView.
<asp:GridView
ID="OpenCloseUDTIGameThreadGridView"
runat="server"
AllowPaging="True"
AutoGenerateColumns="False"
DataKeyNames="AutoNumber"
DataSourceID="OpenCloseUDTIGameThreadSqlDataSource"
CellPadding="4"
ForeColor="#333333"
PageSize="100" >
<Columns>
<asp:TemplateField HeaderText="Picture">
<ItemTemplate>
<asp:ImageButton
ID="ThumbNailImageButton"
runat="server"
Width="75px"
PostBackUrl='<%# string.Concat("~/Classifieds/DetailPage.aspx?AutoNumber=",Convert.ToString(Eval("AutoNumber")),"&FlagForm=NoSubmitted") %>'
ImageUrl='<%# IIF(System.IO.File.Exists(Server.MapPath(string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"))), string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"), "~/UploadedImagesClassifieds/NoPicture.gif")
%>' />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:CommandField ShowEditButton="True" />
<asp:BoundField DataField="TCategory" HeaderText="Category" ReadOnly="True" SortExpression="TCategory" />
<asp:BoundField DataField="TItemTitle" HeaderText="Item Title" SortExpression="TItemTitle" ReadOnly="True" />
<asp:BoundField DataField="TUDTIThreadActualStatus" HeaderText="Actual Status" SortExpression="TUDTIThreadActualStatus" />
</Columns>
</asp:GridView>
As you can see the second cell in each row is a EditButton, and the only cell that could be updated by users is the last one, DataField = TUDTIThreadActualStatus. I just want to know what could be the easiest way to validate the user entry when the row is in edit mode. Is there anyway to validate the textbox control with a validation control or is better to used code behind. Either way may you explain and drop some code if posible.
when a user enters edit mode of my gridview, the girdview becomes huge. How can I make it so my gridview stays relatively close to the size it is when it is not in gridview?
View 1 RepliesHow do you set the font size for all GridView textboxes in Edit mode other than templating each. I have the font size for the GridView set <asp:GridView
ID="GridView1"
....... "x-small" but when I call the Edit mode the font defaults to medium.
How can I put validations in editable grid?
View 1 Repliesi use these code to set limit size for image that users want to upload
protected void BtnUploadS_Click(object sender, EventArgs e)
{
string path = Server.MapPath(".") + "../image/House";
[Code]....
here i define if (fup1.PostedFile.ContentLength < 102400) this size for image but when i upload image that has more than this 100KB it show error ===File size of 756 KB is exceeding the uploading limit but it upload file i don't want users can upload file morethan 100KB but here show error but upload image why?
I do not want to change the default settings for file upload, 4Mb is more than enough for the project I'm working on. After quite a bit of searching I found two approaches that were purported to work but neither one is preventing the "Maximum request length exceeded" error. The first approach[see ref. #1 below] performs validation with a custom validator and in code behind on the page that contains the FileUpload control. It doesn't work. The second approach [see ref #2 below] performs validation in the Application_BeginRequest event in Global.asax. The author stated that validation must be handled by this event. Quoting: "The way to get past is to use your Application_BeginRequest event to handle the problem.. This event takes place for each request to your application BEFORE the data has been completely uploaded. Here you can check for the content length of the request and then redirect to the some error page or the same page with some value in session or query string so that the page can show appropriate message to the user." Here is my code from Golbal.asax based on the above. As noted, this approach doesn't work either.
protected void Application_BeginRequest(object sender, EventArgs e)
{
const int maxFileSize = 4 * 1000000; // Slightly less than 4Mb
if (Request.ContentLength > maxFileSize)
{
Response.Redirect("~/FileUploadError.aspx");
}
}
One comment by a reader of the Global.asax approach was that the value returned by Request.Content.Length would include everything on the page, i.e. viewstate, image and text content, etc. I suppose one work-around would be to set the limit higher in web.config but validate for max. file size in code behind, but that seems kind of silly because I'm manipulating the uploaded files (images) to reduce the size anyway; storage space isn't the issue, performance is. Has anyone managed to solve this poblem?
I use fileupload control to upload image below is code:
protected void BtnUpload3Img_Click(object sender, EventArgs e)
{
uploadImageError.Visible = true;
if (fup3.HasFile && fup3.PostedFile.ContentLength < 102400)
[Code]....
in above code I define format of image that user can upload .png or .jpg image and size of image should be lessthan 100KB now I want define that users just can upload images with dimension 1007*143 how I can do it?
I have a file upload control, in edit template and footer template and I want to store its path in database, but I am unable to get the path of from File upload control.
View 2 RepliesIn my asp.net application i'm using gridview to which i'm binding data dynamically by writing a select query in code behined file (all column's are autogenerated) now i want to change gridview cell to edit mode from label to textbox or dropdown on clicking of gridview's cell.How can i achive this in code behined file.
View 4 Repliesset the size of textboxes generated in the details and edit views of a Dynamic Data application, without resorting to custom page templates?
View 1 RepliesI have a grid view with edit and save buttons when I click on edit it is letting me edit it and if I click on save it is lettingme save the data that I have edited.
The thing is after save is done it is showing the data in edit mode i.e <edit item template > mode I am still seeing the textboxes if I refresh the page then I am seeing it normally.
How can I stop the gridview to show edit mode after the save is done?
Can someone tell me if there is a technique to make an entire Column within an gridview (for example digits) editable (instaed of a single row) and update this column after changing values by press an Update-button?
A commercial solution is also o.k. with me, but, of course, a method to do it ourselve would be nice.
- I want to put multiple rows of a gridview into edit mode
- I have not found any easy method to accomplish this task. I found a way to programmatically put a gridview into edit mode, but in testing the code below it works for only 1 row at a time :
[Code]....
I have a page with 2 GridViews on it. The top GridView shows all the Bike Riders the bottom GridView shows all the Bike Lockers. I have set up both GridViews to be able to Edit the data. And the top GridView to Select.
When I click the Select buton on the top GridView I programically reset the DataSource for the bottom GridView to show the Locker for the Biker of the top GridView Selected.
So far everything works great. I select a Biker on the Top GridView and the Bottom GridView resets just showing one record for the bike locker.
The problem is that if I then click on the Edit button on the bottom GridView (The Bike Locker GridView) the GridView goes into the Edit Mode but it now shows all the Bike Locker records and the edit record is always the top record of the GrdView.
Here is my code Behind:
[Code]....
How do I change these hyperlinks to say something other then Edit and Cancel?
View 4 RepliesI am uploading an Excel file into DataSet/Gridview but once the file is uploaded, then i want to be able to make changes the data that is uploaded like making changes the data inside the Gridview or deleting the data etc. Here is my code:
<div>
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button ID="btnUpload" runat="server" Text="Upload" OnClick="btnUpload_Click" />
<br />
[Code].....
i have file upload control and i need to check that user can only upload video whic has equal or less than 15 sec length or max 1 mb size.
View 1 Replieswhen i did not have too many controls on the gridview, it was displaying fine. but when i added more controls, it has become very slow and displays a large size for a second or so, and then comes to normal size.
View 1 RepliesI have a Gridview on my aspx and i wonder if i can use validators like requiredfieldvalidator,comparevalidator or etc to validate a row is added or NOT?
View 4 Repliesi am using c# and want to do a validate to edit and do a new fild.
View 7 RepliesI want to set specific width size of a column inside grid view i tryed following things butit did not work:
I tryed through css through C# and to set properties for gridview like itemstyle/itemcontrol width = 150px
this is my Gridview style
asp:GridView ID="gvAmount" runat="server" AutoGenerateColumns="False"
CellPadding="3"
DataKeyNames = "id"[code]....
here im binding more than 20 records to this gridview. at one situation Title will come alone without any other data, at that time i would like to show the title in a single line so i have increased the Title (first column) width but that size would be set to all the rows, so without affecting other row columns width how to increase that Title size alone.
I need to validate and read edited values from a gridview. Here is the scenario,I have a gridview which has two columns Iteam name and Item Rate. Number of rows are dynamic depending on the user. I get the Text boxes filled with DB data.
I need to do this,
1) Validate if the user has entered numeric using front end validation
2) Read the edited values by user for each row and insert into the database in server side
Below is the gridview Source I have
[Code]....
I am unable to read gridview contents
- I have a GridView , I want add a row FooterTemplate to add a new record in GridView . But I want to validate TextBoxs in FooterTemplate. My language I using is C# , Web Form .
Here is my code :
private bool Validate()