Css Templates Gridview Asp Net
I use ASP.NET GridView in my projects a lot. It is a great control with powerful functionality that can be customized in many ways. GridView has many settings that.
Asp.Net Gridview Css TemplatesThis article doesnot explain the ' Hello World to Gridview'. If you are looking for that, you may look for Simple GridView walkthrough in the ASP.Net 2.0 section. This articles main objective is to explain how to use a Gridview in real time applications. When a grid is used for managing data(create, update delete) just using the DataBound columns will not be of much help. In this case, we need to use the Templated Columns. This allows greater flexiblity in terms of using any controls for viewing and for editing. This allows to add validation controls to validate each action on the current row.
But the same code is being re-used for this example for consistancy reasons. TemplateField, ItemTemplate, EditItemTemplateTemplateField object is used in place of the bound column.
We are going to replace the bound column with TemplateField and its respective templates ItemTemplate and EditItemTemplate. TemplateField is just a container for the ItemTemplate and EditItemTemplate ItemTemplate ItemTemplate will be displayed when the row in View Mode. So the controls normally is Label and in some specific cases CheckBoxes, RadioButtons, etc can be used in disabled state. ItemTemplate can be defined as follows. Update,Insert and Delete Routines Code wise not much difference because of this ItemTemplate implementation. Just we need to change the controls collection to point to the textboxes we have defined. If description column's text box was referred as DirectCast(rowGrid.Cells(3).Controls(0), TextBox).Text then it should be changed to DirectCast(rowGrid.Cells(3).Controls(1), TextBox).Text.
The logic behind is the first index onwards the controls will be added to the controls collection. So if there are two controls then second control will be controls(3). There is an alternative to this method. It is Using the FindControl method. It is purely developers choice to opt for. If edit and delete button is automatically created then that is the only change.
But i would like to explain how to add a custom actions to the row. It may be required in real time applications. For e.g 1)An approve button in rows to approve requests in a workflow module 2) Activate button to activate a deactivated row in a master management module or a user management module. So to explain with current setup i am going to detach the edit, delete buttons from automatic creation and i am going to define the custom buttons, but will do the same action. All this custom actions will be maped to the event RowCommand named as GridView1RowCommand.
And the key data can be passed through CommandArgument. Each commad can be identified by its distinguish names. I.e we need to name the command arguments accordingly. If you name the CommandArgument. Now its time to implement GridView1RowCommand, This event is used for catching all the Edit,Update,Cancel And delete related events. All the events can be identified by CommandArguments which we specified in the aspx module.
Asp Gridview Example
To identify the current row the e.CommandSource can be used in this case the command source is a link button. To get a row we have to go two levels up, one is Cell then next level is row so the parent of link button is a celll and parent of that cell is the current row. By getting the current row we can get the current row index.
Once the current row and RowIndex in hand. Its much easier to do the rest. Dim rowCommand As GridViewRow Dim lnkEdit As LinkButton = DirectCast(e.CommandSource, LinkButton) rowCommand = DirectCast(lnkEdit.Parent.Parent, GridViewRow) To bring the GridView to EditMode, we need to specify the GridView's EditItemIndex to the respective Grid Row's RowIndex. We have the rowCommand object, Which has the current row index in RowIndex Property GridView1.EditIndex = rowCommand.RowIndex By reusing the functions we used in the article ' A Simple GridView(DataGrid) Walkthrough in ASP.Net' we can finalize the RowCommand event. We have the rowCommand GridViewRow which needs to be passed for Update, and Delete funcitons. Finally the RowCommand Event will be as follows.
GUEST x 8/15/2010 10:00:16 PM. GUEST The part 2 link does not work. I want to see how to use the CSSClass API for gridview. The styles do not seem to work; most of the columns are TemplateFields. I tried to hook them up in a skin like this: RowStyle-CssClass='GridviewRow' or AlternatingRowStyle CssClass='GridviewAlternatingRow' and I had the styles defined in a stylesheet. The only effect I get is when I put the 'styles' directly in the skin, like this: AlternatingRow-BackColor='#DFEAF5'. 1/28/2014 2:43:22 PM.
Asp.Net Gridview Css TemplatesThis article doesnot explain the ' Hello World to Gridview'. If you are looking for that, you may look for Simple GridView walkthrough in the ASP.Net 2.0 section. This articles main objective is to explain how to use a Gridview in real time applications. When a grid is used for managing data(create, update delete) just using the DataBound columns will not be of much help.
In this case, we need to use the Templated Columns. This allows greater flexiblity in terms of using any controls for viewing and for editing. This allows to add validation controls to validate each action on the current row. But the same code is being re-used for this example for consistancy reasons. TemplateField, ItemTemplate, EditItemTemplateTemplateField object is used in place of the bound column.
We are going to replace the bound column with TemplateField and its respective templates ItemTemplate and EditItemTemplate. TemplateField is just a container for the ItemTemplate and EditItemTemplate ItemTemplate ItemTemplate will be displayed when the row in View Mode. So the controls normally is Label and in some specific cases CheckBoxes, RadioButtons, etc can be used in disabled state. ItemTemplate can be defined as follows. Update,Insert and Delete Routines Code wise not much difference because of this ItemTemplate implementation. Just we need to change the controls collection to point to the textboxes we have defined.
If description column's text box was referred as DirectCast(rowGrid.Cells(3).Controls(0), TextBox).Text then it should be changed to DirectCast(rowGrid.Cells(3).Controls(1), TextBox).Text. The logic behind is the first index onwards the controls will be added to the controls collection. So if there are two controls then second control will be controls(3). There is an alternative to this method. It is Using the FindControl method.
It is purely developers choice to opt for. If edit and delete button is automatically created then that is the only change. But i would like to explain how to add a custom actions to the row. It may be required in real time applications.
For e.g 1)An approve button in rows to approve requests in a workflow module 2) Activate button to activate a deactivated row in a master management module or a user management module. So to explain with current setup i am going to detach the edit, delete buttons from automatic creation and i am going to define the custom buttons, but will do the same action. All this custom actions will be maped to the event RowCommand named as GridView1RowCommand.
And the key data can be passed through CommandArgument. Each commad can be identified by its distinguish names. I.e we need to name the command arguments accordingly. If you name the CommandArgument. Now its time to implement GridView1RowCommand, This event is used for catching all the Edit,Update,Cancel And delete related events. All the events can be identified by CommandArguments which we specified in the aspx module.
To identify the current row the e.CommandSource can be used in this case the command source is a link button. To get a row we have to go two levels up, one is Cell then next level is row so the parent of link button is a celll and parent of that cell is the current row. By getting the current row we can get the current row index.
Gridview Css Examples
Once the current row and RowIndex in hand. Its much easier to do the rest. Dim rowCommand As GridViewRow Dim lnkEdit As LinkButton = DirectCast(e.CommandSource, LinkButton) rowCommand = DirectCast(lnkEdit.Parent.Parent, GridViewRow) To bring the GridView to EditMode, we need to specify the GridView's EditItemIndex to the respective Grid Row's RowIndex. We have the rowCommand object, Which has the current row index in RowIndex Property GridView1.EditIndex = rowCommand.RowIndex By reusing the functions we used in the article ' A Simple GridView(DataGrid) Walkthrough in ASP.Net' we can finalize the RowCommand event. We have the rowCommand GridViewRow which needs to be passed for Update, and Delete funcitons. Finally the RowCommand Event will be as follows.
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GUEST x 8/15/2010 10:00:16 PM. GUEST The part 2 link does not work. I want to see how to use the CSSClass API for gridview. The styles do not seem to work; most of the columns are TemplateFields. I tried to hook them up in a skin like this: RowStyle-CssClass='GridviewRow' or AlternatingRowStyle CssClass='GridviewAlternatingRow' and I had the styles defined in a stylesheet. The only effect I get is when I put the 'styles' directly in the skin, like this: AlternatingRow-BackColor='#DFEAF5'. 1/28/2014 2:43:22 PM.