I have gridview control. visit [URL] but when i change page index of this i get error the following error
Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
I am using grid view with row "data bound event" at row row data bound i am using some function with loops to fill drop down of grid view in template columns. grid view gets populated with selected index change event of drop down. my problem is the asp.net page is getting slower i mean when grid populates its taking some time and some time page get hanged what to do to get rid of it?
I have a gridview that loads with a new datasource on button click event. On the gridview (which is located in a table columm incidentally) are 2 columns, a descriptor and a checkbox. The problem is that after postback, the column widths change, the checkbox column expands and the other column contracts. Is there a way to keep the gridview column sizes the same after postback?
I want to filter grid view, drop down list should select the column and text box will filter the column. like ID NAME Phone Designation fields in gridview.i will select Designation in dropdown and type programmer in text box .so it should filter programmers from the gridview...
I have two control page in my aspx page. first one left side "tree view",second one right side " form design".Form design will change based on tree view selected index changed.i have 4 level child node(site, master , slave, space). I have seperate forms to each level of node.
cannot update tree node when update the forms. so i reload tree view.
now i need how to auto selected index change to tree node.
1 parent node
1.1 child node
1.2 child node
i have update "1.2 child node" rename to "1.3 child node"
and reload treeview so it will chage...
how set tree node.selected index = 1.3 child node....
AutoGenerateColumns: Flase/True ( i tried both) If i remove the gvOff.Columns[index].HeaderText portions, GridView works fine, but when i put the gvOff.Columns.HeaderText, i get the exceptional error.
, i couldn't solve it. If you need further info, inform me.
Hold on! I commented the HeaderText portion and tested int i = gvOffer.Columns.Count; I found count is 0 eventhough the columns print out with DataBind()... Why? NOTE: AutoColumn in this case is set to true. I guess i will have to edit the column names from DataTable.
I've got a tough one (at least for me!). I have a gridview control which is actually from ComponentOne but most is the same as the normal gridview. It has a feature that lets me move columns around so they are in different order. I want to be able to click a button and see the order of these columns and which ones are visible. This is to be used for a custom report I am generating.
Does anyone know how to find out what columns are visible and in what order? I'm doing it in VB coding for asp.net.
I m getting Problem in Tab Index Setting of Dynamic Created Controls. There are 6 Drop down dynamic created and also Two user controls which contains text boxes. There are also Static Controls on a Page. How i set tab index for all controls. I have try to give from code behind using TabIndex property But it's not working and Tab order get destory.
in asp.net page user able to select gridview Columns, and it will hide remaining columns and that selection done by check box with column list bellow is Image link , what exactly I am looking for [URL] it look bellow after selection of column done [URL]
i have two dropdownlist, second dropdown populates based on value selected in first dropdown.
Parentdropdown is working fine and second dropdown is also popualting correctly. But when i select value from second dropdown and click on submit button it resets to first value i.e though i have chosen 3rd value from dropdown it resets to first value.This happens when autopostback is not thr.
If for the same case ifi do autopostback=true. It chnages to first value automatically . then it odesnot require submitbutton click as well.
In both cases selected index is not getting set for second dropdown.