To remove record using button

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Posted on by Dineshkarlekar

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I have created the button on my form which gets enable disable on certain condition here i want to delete the selected record when the button is clicked the enable/disable condition on button is working fine but how can i remove the selected record can any one guide me on this , my code is below and the button i am using is not command button

[ExtensionOf(formDataSourceStr(TrvExpenses,TrvExpTrans))]final class DTTrvExpenses_TrvExpTrans_Extension{    [Control(/Button/)]    class DeleteExpenceLines    {        /// <summary>        /// Remove the selected expenses from the expense report        /// </summary>        public void clicked()        {            // Invoke method to process expense line deletion.            // This method should be invoked for deletion from both details view and grid view.            // There is no special processing for deletion from grid view.            this.MyMethodToDeleteLines();            super();        }    }}

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GirishS 27,843 Moderator on at

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Hi Dinesh,

You need to write code on the clicked method of the new button control.

If you want to mark the selected lines from the grid on click of button - You need to use multi selection helper class.

Refer to the below blog.

https://community.dynamics.com/blogs/post/?postid=9dd5cb62-c06c-427d-9b6b-3e75091e1b2e

http://msdaxsolutions.blogspot.com/2017/11/multiselect-values-from-grid-and.html

Thanks,

Girish S.

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Mohit Rampal 12,573 Moderator on at

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Hi Dinesh, You have written button clicked method control in FormDataSource extension class. Instead either create event handler class and use onClicked event of button or create an extension class of form control.

https://dynamics365musings.com/chain-of-command-form-control/

As mentioned below, you can use multi select helper class to find selected records and delete it.

https://community.dynamics.com/blogs/post/?postid=9dd5cb62-c06c-427d-9b6b-3e75091e1b2e

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Dineshkarlekar 1,836 on at

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hi

Girish s ,

Mohit Rampal,

Thanks For reply ,

if i create the event handler class , or extension class of form control where can i call and write my logic in dodelete() method as i want to delete the selected record on form, as the do delete is the table method can u please guide me on this.

thanks regards

dinesh

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GirishS 27,843 Moderator on at

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Refer to the below code.

[FormControlEventHandler(formControlStr(FormName, ButtonName), FormControlEventType::Clicked)]
public static void ButtonName_OnClicked(FormControl sender, FormControlEventArgs e)
{
FormButtonControl callerButton = sender as FormButtonControl;
FormRun form = callerButton.formRun();
FormDataSource dataSourceName_ds= form.dataSource(formDataSourceStr(FormName, DataSourceName)) as FormDataSource; // datasource name where the records to be deleted.

//Multiselect helper class

TableName tableName;//records to delete from

  MultiSelectiper helper = MultiSelectionHelonHelper::construct();
helper.parmDatasource(dataSourceName_ds);
tableName= helper.getFirst();

while (tableName.RecId != 0)
    {
tableName.doDelete();
        custPaymModeTablelocal = helper.getNext();
    }

}

Thanks,

Girish S.

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GirishS 27,843 Moderator on at

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Replace custPaymModeTablelocal buffer with tableName buffer.

while (tableName.RecId != 0)
    {
tableName.doDelete();
        tableName= helper.getNext();
    }

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Dineshkarlekar 1,836 on at

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public class TrvExpTrans extends common { public void doDelete() { if(!this.canExpenseLineBeDeletedWithApprovalStatus()) { return; } super(); } /// <summary> /// List of approval Status for which expense line can be deleted /// </summary> /// <returns> /// true if we can delete , false if not allowed /// </returns> private boolean canExpenseLineBeDeletedWithApprovalStatus() { if( this.ApprovalStatus == TrvAppStatus::None || this.ApprovalStatus == TrvAppStatus::Matched || this.ApprovalStatus == TrvAppStatus::Create ) { return true; } return false; } }

the table do delete is having code like this i want to add my condition

this.ApprovalStatus == TrvAppStatus::Pending how can i pass my condition in do delete method ,

/// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> [FormControlEventHandler(formControlStr(TrvExpenses, DeleteExpenceLines), FormControlEventType::Clicked)] public static void DeleteExpenceLines_OnClicked(FormControl sender, FormControlEventArgs e) { FormButtonControl callerButton = sender as FormButtonControl; FormRun form = callerButton.formRun(); FormDataSource trvExpTrans_ds = form.dataSource(formDataSourceStr(TrvExpenses,TrvExpTrans)) as FormDataSource; // datasource name where the records to be deleted. //Multiselect helper class TrvExpTrans _trvExpTrans ;//records to delete from MultiSelectionHelper helper = MultiSelectionHelper::construct(); helper.parmDatasource( trvExpTrans_ds); _trvExpTrans = helper.getFirst(); while ( _trvExpTrans.RecId != 0) { _trvExpTrans.doDelete(); _trvExpTrans = helper.getNext(); } } }

thanks,

regards,

Dinesh

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Dineshkarlekar 1,836 on at

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i have return the code on form datasource so the click button can call this code for dodelete

plz suggest do i have to make any changes in this.

[ExtensionOf(formDataSourceStr(TrvExpenses,TrvExpTrans))] final class DTTrvExpenses_TrvExpTrans_Extension { public void doDelete() { if(!this.canExpenseLineBeDeletedWithApprovalStatus()) { return; } } /// <summary> /// List of approval Status for which expense line can be deleted /// </summary> /// <returns> /// true if we can delete , false if not allowed /// </returns> Public boolean canExpenseLineBeDeletedWithApprovalStatus() { TrvExpTable trvExpTable; if( trvExpTable.ApprovalStatus == TrvAppStatus::Pending) { return true; } return false; } }

thanks,

Regards,

Dinesh

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GirishS 27,843 Moderator on at

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Why do you need two methods. You can use single method to achieve this. Also you need to get the current cursor and then check for the condition. Refer to the below code.

[ExtensionOf(formDataSourceStr(TrvExpenses,TrvExpTrans))] final class DTTrvExpenses_TrvExpTrans_Extension { /// <summary> /// List of approval Status for which expense line can be deleted /// </summary> /// <returns> /// true if we can delete , false if not allowed /// </returns> Public boolean doDelete() { TrvExpTable trvExpTable; trvExpTable = this.cursor(); if(trvExpTable.ApprovalStatus == TrvAppStatus::Pending) { return true; } return false; } }

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Dineshkarlekar 1,836 on at

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hi

Girish s,

I have made the changes in do delete method, but the debugger is not going into , but the debugger is not getting in this method and the record is not getting deleted.

[ExtensionOf(formDataSourceStr(TrvExpenses,TrvExpTrans))] final class DTTrvExpenses_TrvExpTrans_Extension { /// <summary> /// List of approval Status for which expense line can be deleted /// </summary> /// <returns> /// true if we can delete , false if not allowed /// </returns> Public boolean doDelete() { TrvExpTable trvExpTable; trvExpTable = this.cursor(); if(trvExpTable.ApprovalStatus == TrvAppStatus::Pending) { return true; } return false; } }

instead it hitting this dodelete method

public class TrvExpTrans extends common { public void doDelete() { if(!this.canExpenseLineBeDeletedWithApprovalStatus()) { return; } super(); } /// <summary> /// List of approval Status for which expense line can be deleted /// </summary> /// <returns> /// true if we can delete , false if not allowed /// </returns> private boolean canExpenseLineBeDeletedWithApprovalStatus() { if( this.ApprovalStatus == TrvAppStatus::None || this.ApprovalStatus == TrvAppStatus::Matched || this.ApprovalStatus == TrvAppStatus::Create ) { return true; } return false; } }

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GirishS 27,843 Moderator on at

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I am confused. To make it simple it's not necessary to create new method and add a validation there - You can add the validation inside the clicked method itself. - Inside multi selection helper class.

If you still need it, please share the code on the clicked method.

Thanks,

Girish S.

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